fix(fs): handle '.' path normalization on Windows (#26634)

## Summary
- Fix path normalization for "." on Windows where `normalizeStringBuf`
was incorrectly stripping it to an empty string
- This caused `existsSync('.')`, `statSync('.')`, and other fs
operations to fail on Windows

## Test plan
- Added regression test `test/regression/issue/26631.test.ts` that tests
`existsSync`, `exists`, `statSync`, and `stat` for both `.` and `..`
paths
- All tests pass locally with `bun bd test
test/regression/issue/26631.test.ts`
- Verified code compiles on all platforms with `bun run zig:check-all`

Fixes #26631

🤖 Generated with [Claude Code](https://claude.com/claude-code)

---------

Co-authored-by: Claude Bot <claude-bot@bun.sh>
Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>

.buildkite/Dockerfile

@@ -26,7 +26,7 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
    wget curl git python3 python3-pip ninja-build \
    software-properties-common apt-transport-https \
    ca-certificates gnupg lsb-release unzip \
-   libxml2-dev ruby ruby-dev bison gawk perl make golang ccache \
+   libxml2-dev ruby ruby-dev bison gawk perl make golang ccache qemu-user-static \
    && add-apt-repository ppa:ubuntu-toolchain-r/test \
    && apt-get update \
    && apt-get install -y gcc-13 g++-13 libgcc-13-dev libstdc++-13-dev \

.buildkite/ci.mjs

@@ -114,6 +114,8 @@ const buildPlatforms = [
   { os: "linux", arch: "x64", abi: "musl", baseline: true, distro: "alpine", release: "3.22" },
   { os: "windows", arch: "x64", release: "2019" },
   { os: "windows", arch: "x64", baseline: true, release: "2019" },
+  // TODO: Enable when Windows ARM64 CI runners are ready
+  // { os: "windows", arch: "aarch64", release: "2019" },
 ];
 
 /**
@@ -136,6 +138,8 @@ const testPlatforms = [
   { os: "linux", arch: "x64", abi: "musl", baseline: true, distro: "alpine", release: "3.22", tier: "latest" },
   { os: "windows", arch: "x64", release: "2019", tier: "oldest" },
   { os: "windows", arch: "x64", release: "2019", baseline: true, tier: "oldest" },
+  // TODO: Enable when Windows ARM64 CI runners are ready
+  // { os: "windows", arch: "aarch64", release: "2019", tier: "oldest" },
 ];
 
 /**
@@ -533,6 +537,109 @@ function getLinkBunStep(platform, options) {
   };
 }
 
+/**
+ * Returns the artifact triplet for a platform, e.g. "bun-linux-aarch64" or "bun-linux-x64-musl-baseline".
+ * Matches the naming convention in cmake/targets/BuildBun.cmake.
+ * @param {Platform} platform
+ * @returns {string}
+ */
+function getTargetTriplet(platform) {
+  const { os, arch, abi, baseline } = platform;
+  let triplet = `bun-${os}-${arch}`;
+  if (abi === "musl") {
+    triplet += "-musl";
+  }
+  if (baseline) {
+    triplet += "-baseline";
+  }
+  return triplet;
+}
+
+/**
+ * Returns true if a platform needs QEMU-based baseline CPU verification.
+ * x64 baseline builds verify no AVX/AVX2 instructions snuck in.
+ * aarch64 builds verify no LSE/SVE instructions snuck in.
+ * @param {Platform} platform
+ * @returns {boolean}
+ */
+function needsBaselineVerification(platform) {
+  const { os, arch, baseline } = platform;
+  if (os !== "linux") return false;
+  return (arch === "x64" && baseline) || arch === "aarch64";
+}
+
+/**
+ * @param {Platform} platform
+ * @param {PipelineOptions} options
+ * @returns {Step}
+ */
+function getVerifyBaselineStep(platform, options) {
+  const { arch } = platform;
+  const targetKey = getTargetKey(platform);
+  const archArg = arch === "x64" ? "x64" : "aarch64";
+
+  return {
+    key: `${targetKey}-verify-baseline`,
+    label: `${getTargetLabel(platform)} - verify-baseline`,
+    depends_on: [`${targetKey}-build-bun`],
+    agents: getLinkBunAgent(platform, options),
+    retry: getRetry(),
+    cancel_on_build_failing: isMergeQueue(),
+    timeout_in_minutes: 5,
+    command: [
+      `buildkite-agent artifact download '*.zip' . --step ${targetKey}-build-bun`,
+      `unzip -o '${getTargetTriplet(platform)}.zip'`,
+      `unzip -o '${getTargetTriplet(platform)}-profile.zip'`,
+      `chmod +x ${getTargetTriplet(platform)}/bun ${getTargetTriplet(platform)}-profile/bun-profile`,
+      `./scripts/verify-baseline-cpu.sh --arch ${archArg} --binary ${getTargetTriplet(platform)}/bun`,
+      `./scripts/verify-baseline-cpu.sh --arch ${archArg} --binary ${getTargetTriplet(platform)}-profile/bun-profile`,
+    ],
+  };
+}
+
+/**
+ * Returns true if the PR modifies SetupWebKit.cmake (WebKit version changes).
+ * JIT stress tests under QEMU should run when WebKit is updated to catch
+ * JIT-generated code that uses unsupported CPU instructions.
+ * @param {PipelineOptions} options
+ * @returns {boolean}
+ */
+function hasWebKitChanges(options) {
+  const { changedFiles = [] } = options;
+  return changedFiles.some(file => file.includes("SetupWebKit.cmake"));
+}
+
+/**
+ * Returns a step that runs JSC JIT stress tests under QEMU.
+ * This verifies that JIT-compiled code doesn't use CPU instructions
+ * beyond the baseline target (no AVX on x64, no LSE on aarch64).
+ * @param {Platform} platform
+ * @param {PipelineOptions} options
+ * @returns {Step}
+ */
+function getJitStressTestStep(platform, options) {
+  const { arch } = platform;
+  const targetKey = getTargetKey(platform);
+  const archArg = arch === "x64" ? "x64" : "aarch64";
+
+  return {
+    key: `${targetKey}-jit-stress-qemu`,
+    label: `${getTargetLabel(platform)} - jit-stress-qemu`,
+    depends_on: [`${targetKey}-build-bun`],
+    agents: getLinkBunAgent(platform, options),
+    retry: getRetry(),
+    cancel_on_build_failing: isMergeQueue(),
+    // JIT stress tests are slow under QEMU emulation
+    timeout_in_minutes: 30,
+    command: [
+      `buildkite-agent artifact download '*.zip' . --step ${targetKey}-build-bun`,
+      `unzip -o '${getTargetTriplet(platform)}.zip'`,
+      `chmod +x ${getTargetTriplet(platform)}/bun`,
+      `./scripts/verify-jit-stress-qemu.sh --arch ${archArg} --binary ${getTargetTriplet(platform)}/bun`,
+    ],
+  };
+}
+
 /**
  * @param {Platform} platform
  * @param {PipelineOptions} options
@@ -770,6 +877,7 @@ function getBenchmarkStep() {
  * @property {Platform[]} [buildPlatforms]
  * @property {Platform[]} [testPlatforms]
  * @property {string[]} [testFiles]
+ * @property {string[]} [changedFiles]
  */
 
 /**
@@ -1122,6 +1230,14 @@ async function getPipeline(options = {}) {
         steps.push(getBuildZigStep(target, options));
         steps.push(getLinkBunStep(target, options));
 
+        if (needsBaselineVerification(target)) {
+          steps.push(getVerifyBaselineStep(target, options));
+          // Run JIT stress tests under QEMU when WebKit is updated
+          if (hasWebKitChanges(options)) {
+            steps.push(getJitStressTestStep(target, options));
+          }
+        }
+
         return getStepWithDependsOn(
           {
             key: getTargetKey(target),
@@ -1219,6 +1335,7 @@ async function main() {
       console.log(`- PR is only docs, skipping tests!`);
       return;
     }
+    options.changedFiles = allFiles;
   }
 
   startGroup("Generating pipeline...");

.buildkite/scripts/sign-windows.ps1

@@ -36,16 +36,20 @@ function Log-Debug {
     }
 }
 
+# Detect system architecture
+$script:IsARM64 = [System.Runtime.InteropServices.RuntimeInformation]::OSArchitecture -eq [System.Runtime.InteropServices.Architecture]::Arm64
+$script:VsArch = if ($script:IsARM64) { "arm64" } else { "amd64" }
+
 # Load Visual Studio environment if not already loaded
 function Ensure-VSEnvironment {
     if ($null -eq $env:VSINSTALLDIR) {
-        Log-Info "Loading Visual Studio environment..."
-        
+        Log-Info "Loading Visual Studio environment for $script:VsArch..."
+
         $vswhere = "C:\Program Files (x86)\Microsoft Visual Studio\Installer\vswhere.exe"
         if (!(Test-Path $vswhere)) {
             throw "Command not found: vswhere (did you install Visual Studio?)"
         }
-        
+
         $vsDir = & $vswhere -prerelease -latest -property installationPath
         if ($null -eq $vsDir) {
             $vsDir = Get-ChildItem -Path "C:\Program Files\Microsoft Visual Studio\2022" -Directory -ErrorAction SilentlyContinue
@@ -54,20 +58,20 @@ function Ensure-VSEnvironment {
             }
             $vsDir = $vsDir.FullName
         }
-        
+
         Push-Location $vsDir
         try {
             $vsShell = Join-Path -Path $vsDir -ChildPath "Common7\Tools\Launch-VsDevShell.ps1"
-            . $vsShell -Arch amd64 -HostArch amd64
+            . $vsShell -Arch $script:VsArch -HostArch $script:VsArch
         } finally {
             Pop-Location
         }
-        
+
         Log-Success "Visual Studio environment loaded"
     }
-    
+
     if ($env:VSCMD_ARG_TGT_ARCH -eq "x86") {
-        throw "Visual Studio environment is targeting 32 bit, but only 64 bit is supported."
+        throw "Visual Studio environment is targeting 32 bit x86, but only 64-bit architectures (x64/arm64) are supported."
     }
 }
 
@@ -186,8 +190,10 @@ function Install-KeyLocker {
     }
     
     # Download MSI installer
-    $msiUrl = "https://bun-ci-assets.bun.sh/Keylockertools-windows-x64.msi"
-    $msiPath = Join-Path $env:TEMP "Keylockertools-windows-x64.msi"
+    # Note: KeyLocker tools currently only available for x64, but works on ARM64 via emulation
+    $msiArch = "x64"
+    $msiUrl = "https://bun-ci-assets.bun.sh/Keylockertools-windows-${msiArch}.msi"
+    $msiPath = Join-Path $env:TEMP "Keylockertools-windows-${msiArch}.msi"
     
     Log-Info "Downloading MSI from: $msiUrl"
     Log-Info "Downloading to: $msiPath"

.buildkite/scripts/upload-release.sh

@@ -219,6 +219,9 @@ function create_release() {
     bun-windows-x64-profile.zip
     bun-windows-x64-baseline.zip
     bun-windows-x64-baseline-profile.zip
+    # TODO: Enable when Windows ARM64 CI runners are ready
+    # bun-windows-aarch64.zip
+    # bun-windows-aarch64-profile.zip
   )
 
   function upload_artifact() {

.claude/commands/upgrade-webkit.md

@@ -6,8 +6,7 @@ To do that:
 - git fetch upstream
 - git merge upstream main
 - Fix the merge conflicts
-- cd ../../ (back to bun)
-- make jsc-build (this will take about 7 minutes)
+- bun build.ts debug
 - While it compiles, in another task review the JSC commits between the last version of Webkit and the new version. Write up a summary of the webkit changes in a file called "webkit-changes.md"
 - bun run build:local (build a build of Bun with the new Webkit, make sure it compiles)
 - After making sure it compiles, run some code to make sure things work. something like ./build/debug-local/bun-debug --print '42' should be all you need
@@ -21,3 +20,7 @@ To do that:
 - commit + push (without adding the webkit-changes.md file)
 - create PR titled "Upgrade Webkit to the <commit-sha>", paste your webkit-changes.md into the PR description
 - delete the webkit-changes.md file
+
+Things to check for a successful upgrade:
+- Did JSType in vendor/WebKit/Source/JavaScriptCore have any recent changes? Does the enum values align with whats present in src/bun.js/bindings/JSType.zig?
+- Were there any changes to the webcore code generator? If there are C++ compilation errors, check for differences in some of the generated code in like vendor/WebKit/source/WebCore/bindings/scripts/test/JS/

.github/workflows/update-cares.yml

@@ -88,7 +88,7 @@ jobs:
           commit-message: "deps: update c-ares to ${{ steps.check-version.outputs.tag }} (${{ steps.check-version.outputs.latest }})"
           title: "deps: update c-ares to ${{ steps.check-version.outputs.tag }}"
           delete-branch: true
-          branch: deps/update-cares-${{ github.run_number }}
+          branch: deps/update-cares
           body: |
             ## What does this PR do?
 

.github/workflows/update-hdrhistogram.yml

@@ -91,7 +91,7 @@ jobs:
           commit-message: "deps: update hdrhistogram to ${{ steps.check-version.outputs.tag }} (${{ steps.check-version.outputs.latest }})"
           title: "deps: update hdrhistogram to ${{ steps.check-version.outputs.tag }}"
           delete-branch: true
-          branch: deps/update-hdrhistogram-${{ github.run_number }}
+          branch: deps/update-hdrhistogram
           body: |
             ## What does this PR do?
 

.github/workflows/update-highway.yml

@@ -107,7 +107,7 @@ jobs:
           commit-message: "deps: update highway to ${{ steps.check-version.outputs.tag }} (${{ steps.check-version.outputs.latest }})"
           title: "deps: update highway to ${{ steps.check-version.outputs.tag }}"
           delete-branch: true
-          branch: deps/update-highway-${{ github.run_number }}
+          branch: deps/update-highway
           body: |
             ## What does this PR do?
 

.github/workflows/update-libarchive.yml

@@ -88,7 +88,7 @@ jobs:
           commit-message: "deps: update libarchive to ${{ steps.check-version.outputs.tag }} (${{ steps.check-version.outputs.latest }})"
           title: "deps: update libarchive to ${{ steps.check-version.outputs.tag }}"
           delete-branch: true
-          branch: deps/update-libarchive-${{ github.run_number }}
+          branch: deps/update-libarchive
           body: |
             ## What does this PR do?
 

.github/workflows/update-libdeflate.yml

@@ -88,7 +88,7 @@ jobs:
           commit-message: "deps: update libdeflate to ${{ steps.check-version.outputs.tag }} (${{ steps.check-version.outputs.latest }})"
           title: "deps: update libdeflate to ${{ steps.check-version.outputs.tag }}"
           delete-branch: true
-          branch: deps/update-libdeflate-${{ github.run_number }}
+          branch: deps/update-libdeflate
           body: |
             ## What does this PR do?
 

.github/workflows/update-lolhtml.yml

@@ -100,7 +100,7 @@ jobs:
           commit-message: "deps: update lolhtml to ${{ steps.check-version.outputs.tag }} (${{ steps.check-version.outputs.latest }})"
           title: "deps: update lolhtml to ${{ steps.check-version.outputs.tag }}"
           delete-branch: true
-          branch: deps/update-lolhtml-${{ github.run_number }}
+          branch: deps/update-lolhtml
           body: |
             ## What does this PR do?
 

.github/workflows/update-lshpack.yml

@@ -105,7 +105,7 @@ jobs:
           commit-message: "deps: update lshpack to ${{ steps.check-version.outputs.tag }} (${{ steps.check-version.outputs.latest }})"
           title: "deps: update lshpack to ${{ steps.check-version.outputs.tag }}"
           delete-branch: true
-          branch: deps/update-lshpack-${{ github.run_number }}
+          branch: deps/update-lshpack
           body: |
             ## What does this PR do?
 

.github/workflows/update-root-certs.yml

@@ -74,7 +74,7 @@ jobs:
             ```
             ${{ env.changed_files }}
             ```
-          branch: certs/update-root-certs-${{ github.run_number }}
+          branch: certs/update-root-certs
           base: main
           delete-branch: true
           labels:

.github/workflows/update-sqlite3.yml

@@ -83,7 +83,7 @@ jobs:
           commit-message: "deps: update sqlite to ${{ steps.check-version.outputs.latest }}"
           title: "deps: update sqlite to ${{ steps.check-version.outputs.latest }}"
           delete-branch: true
-          branch: deps/update-sqlite-${{ steps.check-version.outputs.latest }}
+          branch: deps/update-sqlite
           body: |
             ## What does this PR do?
 

.github/workflows/update-vendor.yml

@@ -68,7 +68,7 @@ jobs:
           commit-message: "deps: update ${{ matrix.package }} to ${{ steps.check-version.outputs.latest }} (${{ steps.check-version.outputs.latest }})"
           title: "deps: update ${{ matrix.package }} to ${{ steps.check-version.outputs.latest }}"
           delete-branch: true
-          branch: deps/update-${{ matrix.package }}-${{ github.run_number }}
+          branch: deps/update-${{ matrix.package }}
           body: |
             ## What does this PR do?
 

.github/workflows/update-zstd.yml

@@ -88,7 +88,7 @@ jobs:
           commit-message: "deps: update zstd to ${{ steps.check-version.outputs.tag }} (${{ steps.check-version.outputs.latest }})"
           title: "deps: update zstd to ${{ steps.check-version.outputs.tag }}"
           delete-branch: true
-          branch: deps/update-zstd-${{ github.run_number }}
+          branch: deps/update-zstd
           body: |
             ## What does this PR do?
 

.gitignore

@@ -1,4 +1,5 @@
 .claude/settings.local.json
+.direnv
 .DS_Store
 .env
 .envrc

CLAUDE.md

@@ -10,6 +10,8 @@ This is the Bun repository - an all-in-one JavaScript runtime & toolkit designed
 - **Run tests with your debug build**: `bun bd test <test-file>`
   - **CRITICAL**: Never use `bun test` directly - it won't include your changes
 - **Run any command with debug build**: `bun bd <command>`
+- **Run with JavaScript exception scope verification**: `BUN_JSC_validateExceptionChecks=1
+BUN_JSC_dumpSimulatedThrows=1 bun bd <command>`
 
 Tip: Bun is already installed and in $PATH. The `bd` subcommand is a package.json script.
 
@@ -209,3 +211,24 @@ Built-in JavaScript modules use special syntax and are organized as:
 12. **Branch names must start with `claude/`** - This is a requirement for the CI to work.
 
 **ONLY** push up changes after running `bun bd test <file>` and ensuring your tests pass.
+
+## Debugging CI Failures
+
+Use `scripts/buildkite-failures.ts` to fetch and analyze CI build failures:
+
+```bash
+# View failures for current branch
+bun run scripts/buildkite-failures.ts
+
+# View failures for a specific build number
+bun run scripts/buildkite-failures.ts 35051
+
+# View failures for a GitHub PR
+bun run scripts/buildkite-failures.ts #26173
+bun run scripts/buildkite-failures.ts https://github.com/oven-sh/bun/pull/26173
+
+# Wait for build to complete (polls every 10s until pass/fail)
+bun run scripts/buildkite-failures.ts --wait
+```
+
+The script fetches logs from BuildKite's public API and saves complete logs to `/tmp/bun-build-{number}-{platform}-{step}.log`. It displays a summary of errors and the file path for each failed job. Use `--wait` to poll continuously until the build completes or fails.

CONTRIBUTING.md

@@ -259,18 +259,13 @@ $ git clone https://github.com/oven-sh/WebKit vendor/WebKit
 # Check out the commit hash specified in `set(WEBKIT_VERSION <commit_hash>)` in cmake/tools/SetupWebKit.cmake
 $ git -C vendor/WebKit checkout <commit_hash>
 
-# Make a debug build of JSC. This will output build artifacts in ./vendor/WebKit/WebKitBuild/Debug
-# Optionally, you can use `bun run jsc:build` for a release build
-$ bun run jsc:build:debug && rm vendor/WebKit/WebKitBuild/Debug/JavaScriptCore/DerivedSources/inspector/InspectorProtocolObjects.h
-
-# After an initial run of `make jsc-debug`, you can rebuild JSC with:
-$ cmake --build vendor/WebKit/WebKitBuild/Debug --target jsc && rm vendor/WebKit/WebKitBuild/Debug/JavaScriptCore/DerivedSources/inspector/InspectorProtocolObjects.h
-
-# Build bun with the local JSC build
+# Build bun with the local JSC build — this automatically configures and builds JSC
 $ bun run build:local
 ```
 
-Using `bun run build:local` will build Bun in the `./build/debug-local` directory (instead of `./build/debug`), you'll have to change a couple of places to use this new directory:
+`bun run build:local` handles everything: configuring JSC, building JSC, and building Bun. On subsequent runs, JSC will incrementally rebuild if any WebKit sources changed. `ninja -Cbuild/debug-local` also works after the first build, and will build Bun+JSC.
+
+The build output goes to `./build/debug-local` (instead of `./build/debug`), so you'll need to update a couple of places:
 
 - The first line in [`src/js/builtins.d.ts`](/src/js/builtins.d.ts)
 - The `CompilationDatabase` line in [`.clangd` config](/.clangd) should be `CompilationDatabase: build/debug-local`
@@ -281,7 +276,7 @@ Note that the WebKit folder, including build artifacts, is 8GB+ in size.
 
 If you are using a JSC debug build and using VScode, make sure to run the `C/C++: Select a Configuration` command to configure intellisense to find the debug headers.
 
-Note that if you change make changes to our [WebKit fork](https://github.com/oven-sh/WebKit), you will also have to change [`SetupWebKit.cmake`](/cmake/tools/SetupWebKit.cmake) to point to the commit hash.
+Note that if you make changes to our [WebKit fork](https://github.com/oven-sh/WebKit), you will also have to change [`SetupWebKit.cmake`](/cmake/tools/SetupWebKit.cmake) to point to the commit hash.
 
 ## Troubleshooting
 

LATEST

@@ -1 +1 @@
-1.3.6
+1.3.8

LICENSE.md

@@ -36,6 +36,7 @@ Bun statically links these libraries:
 | [`libbase64`](https://github.com/aklomp/base64/blob/master/LICENSE) | BSD 2-Clause |
 | [`libuv`](https://github.com/libuv/libuv) (on Windows) | MIT |
 | [`libdeflate`](https://github.com/ebiggers/libdeflate) | MIT |
+| [`uucode`](https://github.com/jacobsandlund/uucode) | MIT |
 | A fork of [`uWebsockets`](https://github.com/jarred-sumner/uwebsockets) | Apache 2.0 licensed |
 | Parts of [Tigerbeetle's IO code](https://github.com/tigerbeetle/tigerbeetle/blob/532c8b70b9142c17e07737ab6d3da68d7500cbca/src/io/windows.zig#L1) | Apache 2.0 licensed |
 

bench/bun.lock

@@ -18,13 +18,18 @@
         "fast-glob": "3.3.1",
         "fastify": "^5.0.0",
         "fdir": "^6.1.0",
-        "mitata": "^1.0.25",
-        "react": "^18.3.1",
-        "react-dom": "^18.3.1",
+        "marked": "^17.0.1",
+        "mitata": "1.0.20",
+        "react": "^19",
+        "react-dom": "^19",
+        "react-markdown": "^9.0.3",
+        "remark": "^15.0.1",
+        "remark-html": "^16.0.1",
         "string-width": "7.1.0",
         "strip-ansi": "^7.1.0",
         "tar": "^7.4.3",
         "tinycolor2": "^1.6.0",
+        "wrap-ansi": "^9.0.0",
         "zx": "^7.2.3",
       },
       "devDependencies": {
@@ -149,18 +154,36 @@
 
     "@swc/core-win32-x64-msvc": ["@swc/core-win32-x64-msvc@1.3.35", "", { "os": "win32", "cpu": "x64" }, "sha512-/RvphT4WfuGfIK84Ha0dovdPrKB1bW/mc+dtdmhv2E3EGkNc5FoueNwYmXWRimxnU7X0X7IkcRhyKB4G5DeAmg=="],
 
+    "@types/debug": ["@types/debug@4.1.12", "", { "dependencies": { "@types/ms": "*" } }, "sha512-vIChWdVG3LG1SMxEvI/AK+FWJthlrqlTu7fbrlywTkkaONwk/UAGaULXRlf8vkzFBLVm0zkMdCquhL5aOjhXPQ=="],
+
+    "@types/estree": ["@types/estree@1.0.8", "", {}, "sha512-dWHzHa2WqEXI/O1E9OjrocMTKJl2mSrEolh1Iomrv6U+JuNwaHXsXx9bLu5gG7BUWFIN0skIQJQ/L1rIex4X6w=="],
+
+    "@types/estree-jsx": ["@types/estree-jsx@1.0.5", "", { "dependencies": { "@types/estree": "*" } }, "sha512-52CcUVNFyfb1A2ALocQw/Dd1BQFNmSdkuC3BkZ6iqhdMfQz7JWOFRuJFloOzjk+6WijU56m9oKXFAXc7o3Towg=="],
+
     "@types/fs-extra": ["@types/fs-extra@11.0.4", "", { "dependencies": { "@types/jsonfile": "*", "@types/node": "*" } }, "sha512-yTbItCNreRooED33qjunPthRcSjERP1r4MqCZc7wv0u2sUkzTFp45tgUfS5+r7FrZPdmCCNflLhVSP/o+SemsQ=="],
 
+    "@types/hast": ["@types/hast@3.0.4", "", { "dependencies": { "@types/unist": "*" } }, "sha512-WPs+bbQw5aCj+x6laNGWLH3wviHtoCv/P3+otBhbOhJgG8qtpdAMlTCxLtsTWA7LH1Oh/bFCHsBn0TPS5m30EQ=="],
+
     "@types/jsonfile": ["@types/jsonfile@6.1.4", "", { "dependencies": { "@types/node": "*" } }, "sha512-D5qGUYwjvnNNextdU59/+fI+spnwtTFmyQP0h+PfIOSkNfpU6AOICUOkm4i0OnSk+NyjdPJrxCDro0sJsWlRpQ=="],
 
+    "@types/mdast": ["@types/mdast@4.0.4", "", { "dependencies": { "@types/unist": "*" } }, "sha512-kGaNbPh1k7AFzgpud/gMdvIm5xuECykRR+JnWKQno9TAXVa6WIVCGTPvYGekIDL4uwCZQSYbUxNBSb1aUo79oA=="],
+
     "@types/minimist": ["@types/minimist@1.2.5", "", {}, "sha512-hov8bUuiLiyFPGyFPE1lwWhmzYbirOXQNNo40+y3zow8aFVTeyn3VWL0VFFfdNddA8S4Vf0Tc062rzyNr7Paag=="],
 
+    "@types/ms": ["@types/ms@2.1.0", "", {}, "sha512-GsCCIZDE/p3i96vtEqx+7dBUGXrc7zeSK3wwPHIaRThS+9OhWIXRqzs4d6k1SVU8g91DrNRWxWUGhp5KXQb2VA=="],
+
     "@types/node": ["@types/node@18.19.8", "", { "dependencies": { "undici-types": "~5.26.4" } }, "sha512-g1pZtPhsvGVTwmeVoexWZLTQaOvXwoSq//pTL0DHeNzUDrFnir4fgETdhjhIxjVnN+hKOuh98+E1eMLnUXstFg=="],
 
     "@types/ps-tree": ["@types/ps-tree@1.1.6", "", {}, "sha512-PtrlVaOaI44/3pl3cvnlK+GxOM3re2526TJvPvh7W+keHIXdV4TE0ylpPBAcvFQCbGitaTXwL9u+RF7qtVeazQ=="],
 
+    "@types/react": ["@types/react@19.2.10", "", { "dependencies": { "csstype": "^3.2.2" } }, "sha512-WPigyYuGhgZ/cTPRXB2EwUw+XvsRA3GqHlsP4qteqrnnjDrApbS7MxcGr/hke5iUoeB7E/gQtrs9I37zAJ0Vjw=="],
+
+    "@types/unist": ["@types/unist@3.0.3", "", {}, "sha512-ko/gIFJRv177XgZsZcBwnqJN5x/Gien8qNOn0D5bQU/zAzVf9Zt3BlcUiLqhV9y4ARk0GbT3tnUiPNgnTXzc/Q=="],
+
     "@types/which": ["@types/which@3.0.3", "", {}, "sha512-2C1+XoY0huExTbs8MQv1DuS5FS86+SEjdM9F/+GS61gg5Hqbtj8ZiDSx8MfWcyei907fIPbfPGCOrNUTnVHY1g=="],
 
+    "@ungap/structured-clone": ["@ungap/structured-clone@1.3.0", "", {}, "sha512-WmoN8qaIAo7WTYWbAZuG8PYEhn5fkz7dZrqTBZ7dtt//lL2Gwms1IcnQ5yHqjDfX8Ft5j4YzDM23f87zBfDe9g=="],
+
     "abstract-logging": ["abstract-logging@2.0.1", "", {}, "sha512-2BjRTZxTPvheOvGbBslFSYOUkr+SjPtOnrLP33f+VIWLzezQpZcqVg7ja3L4dBXmzzgwT+a029jRx5PCi3JuiA=="],
 
     "ajv": ["ajv@8.17.1", "", { "dependencies": { "fast-deep-equal": "^3.1.3", "fast-uri": "^3.0.1", "json-schema-traverse": "^1.0.0", "require-from-string": "^2.0.2" } }, "sha512-B/gBuNg5SiMTrPkC+A2+cW0RszwxYmn6VYxB/inlBStS5nx6xHIt/ehKRhIMhqusl7a8LjQoZnjCs5vhwxOQ1g=="],
@@ -169,12 +192,14 @@
 
     "ansi-regex": ["ansi-regex@6.0.1", "", {}, "sha512-n5M855fKb2SsfMIiFFoVrABHJC8QtHwVx+mHWP3QcEqBHYienj5dHSgjbxtC0WEZXYt4wcD6zrQElDPhFuZgfA=="],
 
-    "ansi-styles": ["ansi-styles@3.2.1", "", { "dependencies": { "color-convert": "^1.9.0" } }, "sha512-VT0ZI6kZRdTh8YyJw3SMbYm/u+NqfsAxEpWO0Pf9sq8/e94WxxOpPKx9FR1FlyCtOVDNOQ+8ntlqFxiRc+r5qA=="],
+    "ansi-styles": ["ansi-styles@6.2.3", "https://artifactory.infra.ant.dev:443/artifactory/api/npm/npm-all/ansi-styles/-/ansi-styles-6.2.3.tgz", {}, "sha512-4Dj6M28JB+oAH8kFkTLUo+a2jwOFkuqb3yucU0CANcRRUbxS0cP0nZYCGjcc3BNXwRIsUVmDGgzawme7zvJHvg=="],
 
     "atomic-sleep": ["atomic-sleep@1.0.0", "", {}, "sha512-kNOjDqAh7px0XWNI+4QbzoiR/nTkHAWNud2uvnJquD1/x5a7EQZMJT0AczqK0Qn67oY/TTQ1LbUKajZpp3I9tQ=="],
 
     "avvio": ["avvio@9.1.0", "", { "dependencies": { "@fastify/error": "^4.0.0", "fastq": "^1.17.1" } }, "sha512-fYASnYi600CsH/j9EQov7lECAniYiBFiiAtBNuZYLA2leLe9qOvZzqYHFjtIj6gD2VMoMLP14834LFWvr4IfDw=="],
 
+    "bail": ["bail@2.0.2", "", {}, "sha512-0xO6mYd7JB2YesxDKplafRpsiOzPt9V02ddPCLbY1xYGPOX24NTyN50qnUxgCPcSoYMhKpAuBTjQoRZCAkUDRw=="],
+
     "benchmark": ["benchmark@2.1.4", "", { "dependencies": { "lodash": "^4.17.4", "platform": "^1.3.3" } }, "sha512-l9MlfN4M1K/H2fbhfMy3B7vJd6AGKJVQn2h6Sg/Yx+KckoUA7ewS5Vv6TjSq18ooE1kS9hhAlQRH3AkXIh/aOQ=="],
 
     "braces": ["braces@3.0.2", "", { "dependencies": { "fill-range": "^7.0.1" } }, "sha512-b8um+L1RzM3WDSzvhm6gIz1yfTbBt6YTlcEKAvsmqCZZFw46z626lVj9j1yEPW33H5H+lBQpZMP1k8l+78Ha0A=="],
@@ -183,8 +208,18 @@
 
     "caniuse-lite": ["caniuse-lite@1.0.30001456", "", {}, "sha512-XFHJY5dUgmpMV25UqaD4kVq2LsiaU5rS8fb0f17pCoXQiQslzmFgnfOxfvo1bTpTqf7dwG/N/05CnLCnOEKmzA=="],
 
+    "ccount": ["ccount@2.0.1", "", {}, "sha512-eyrF0jiFpY+3drT6383f1qhkbGsLSifNAjA61IUjZjmLCWjItY6LB9ft9YhoDgwfmclB2zhu51Lc7+95b8NRAg=="],
+
     "chalk": ["chalk@5.3.0", "", {}, "sha512-dLitG79d+GV1Nb/VYcCDFivJeK1hiukt9QjRNVOsUtTy1rR1YJsmpGGTZ3qJos+uw7WmWF4wUwBd9jxjocFC2w=="],
 
+    "character-entities": ["character-entities@2.0.2", "", {}, "sha512-shx7oQ0Awen/BRIdkjkvz54PnEEI/EjwXDSIZp86/KKdbafHh1Df/RYGBhn4hbe2+uKC9FnT5UCEdyPz3ai9hQ=="],
+
+    "character-entities-html4": ["character-entities-html4@2.1.0", "", {}, "sha512-1v7fgQRj6hnSwFpq1Eu0ynr/CDEw0rXo2B61qXrLNdHZmPKgb7fqS1a2JwF0rISo9q77jDI8VMEHoApn8qDoZA=="],
+
+    "character-entities-legacy": ["character-entities-legacy@3.0.0", "", {}, "sha512-RpPp0asT/6ufRm//AJVwpViZbGM/MkjQFxJccQRHmISF/22NBtsHqAWmL+/pmkPWoIUJdWyeVleTl1wydHATVQ=="],
+
+    "character-reference-invalid": ["character-reference-invalid@2.0.1", "", {}, "sha512-iBZ4F4wRbyORVsu0jPV7gXkOsGYjGHPmAyv+HiHG8gi5PtC9KI2j1+v8/tlibRvjoWX027ypmG/n0HtO5t7unw=="],
+
     "chownr": ["chownr@3.0.0", "", {}, "sha512-+IxzY9BZOQd/XuYPRmrvEVjF/nqj5kgT4kEq7VofrDoM1MxoRjEWkrCC3EtLi59TVawxTAn+orJwFQcrqEN1+g=="],
 
     "color": ["color@4.2.3", "", { "dependencies": { "color-convert": "^2.0.1", "color-string": "^1.9.0" } }, "sha512-1rXeuUUiGGrykh+CeBdu5Ie7OJwinCgQY0bc7GCRxy5xVHy+moaqkpL/jqQq0MtQOeYcrqEz4abc5f0KtU7W4A=="],
@@ -195,18 +230,26 @@
 
     "color-string": ["color-string@1.9.1", "", { "dependencies": { "color-name": "^1.0.0", "simple-swizzle": "^0.2.2" } }, "sha512-shrVawQFojnZv6xM40anx4CkoDP+fZsw/ZerEMsW/pyzsRbElpsL/DBVW7q3ExxwusdNXI3lXpuhEZkzs8p5Eg=="],
 
+    "comma-separated-tokens": ["comma-separated-tokens@2.0.3", "", {}, "sha512-Fu4hJdvzeylCfQPp9SGWidpzrMs7tTrlu6Vb8XGaRGck8QSNZJJp538Wrb60Lax4fPwR64ViY468OIUTbRlGZg=="],
+
     "convert-source-map": ["convert-source-map@1.9.0", "", {}, "sha512-ASFBup0Mz1uyiIjANan1jzLQami9z1PoYSZCiiYW2FczPbenXc45FZdBZLzOT+r6+iciuEModtmCti+hjaAk0A=="],
 
     "cookie": ["cookie@1.0.2", "", {}, "sha512-9Kr/j4O16ISv8zBBhJoi4bXOYNTkFLOqSL3UDB0njXxCXNezjeyVrJyGOWtgfs/q2km1gwBcfH8q1yEGoMYunA=="],
 
     "cross-spawn": ["cross-spawn@7.0.3", "", { "dependencies": { "path-key": "^3.1.0", "shebang-command": "^2.0.0", "which": "^2.0.1" } }, "sha512-iRDPJKUPVEND7dHPO8rkbOnPpyDygcDFtWjpeWNCgy8WP2rXcxXL8TskReQl6OrB2G7+UJrags1q15Fudc7G6w=="],
 
+    "csstype": ["csstype@3.2.3", "", {}, "sha512-z1HGKcYy2xA8AGQfwrn0PAy+PB7X/GSj3UVJW9qKyn43xWa+gl5nXmU4qqLMRzWVLFC8KusUX8T/0kCiOYpAIQ=="],
+
     "data-uri-to-buffer": ["data-uri-to-buffer@4.0.1", "", {}, "sha512-0R9ikRb668HB7QDxT1vkpuUBtqc53YyAwMwGeUFKRojY/NWKvdZ+9UYtRfGmhqNbRkTSVpMbmyhXipFFv2cb/A=="],
 
     "debug": ["debug@4.3.4", "", { "dependencies": { "ms": "2.1.2" } }, "sha512-PRWFHuSU3eDtQJPvnNY7Jcket1j0t5OuOsFzPPzsekD52Zl8qUfFIPEiswXqIvHWGVHOgX+7G/vCNNhehwxfkQ=="],
 
+    "decode-named-character-reference": ["decode-named-character-reference@1.3.0", "", { "dependencies": { "character-entities": "^2.0.0" } }, "sha512-GtpQYB283KrPp6nRw50q3U9/VfOutZOe103qlN7BPP6Ad27xYnOIWv4lPzo8HCAL+mMZofJ9KEy30fq6MfaK6Q=="],
+
     "dequal": ["dequal@2.0.3", "", {}, "sha512-0je+qPKHEMohvfRTCEo3CrPG6cAzAYgmzKyxRiYSSDkS6eGJdyVJm7WaYA5ECaAD9wLB2T4EEeymA5aFVcYXCA=="],
 
+    "devlop": ["devlop@1.1.0", "", { "dependencies": { "dequal": "^2.0.0" } }, "sha512-RWmIqhcFf1lRYBvNmr7qTNuyCt/7/ns2jbpp1+PalgE/rDQcBT0fioSMUpJ93irlUhC5hrg4cYqe6U+0ImW0rA=="],
+
     "dir-glob": ["dir-glob@3.0.1", "", { "dependencies": { "path-type": "^4.0.0" } }, "sha512-WkrWp9GR4KXfKGYzOLmTuGVi1UWFfws377n9cc55/tb6DuqyF6pcQ5AbiHEshaDpY9v6oaSr2XCDidGmMwdzIA=="],
 
     "duplexer": ["duplexer@0.1.2", "", {}, "sha512-jtD6YG370ZCIi/9GTaJKQxWTZD045+4R4hTk/x1UyoqadyJ9x9CgSi1RlVDQF8U2sxLLSnFkCaMihqljHIWgMg=="],
@@ -261,12 +304,16 @@
 
     "escape-string-regexp": ["escape-string-regexp@1.0.5", "", {}, "sha512-vbRorB5FUQWvla16U8R/qgaFIya2qGzwDrNmCZuYKrbdSUMG6I1ZCGQRefkRVhuOkIGVne7BQ35DSfo1qvJqFg=="],
 
+    "estree-util-is-identifier-name": ["estree-util-is-identifier-name@3.0.0", "", {}, "sha512-hFtqIDZTIUZ9BXLb8y4pYGyk6+wekIivNVTcmvk8NoOh+VeRn5y6cEHzbURrWbfp1fIqdVipilzj+lfaadNZmg=="],
+
     "event-stream": ["event-stream@3.3.4", "", { "dependencies": { "duplexer": "~0.1.1", "from": "~0", "map-stream": "~0.1.0", "pause-stream": "0.0.11", "split": "0.3", "stream-combiner": "~0.0.4", "through": "~2.3.1" } }, "sha512-QHpkERcGsR0T7Qm3HNJSyXKEEj8AHNxkY3PK8TS2KJvQ7NiSHe3DDpwVKKtoYprL/AreyzFBeIkBIWChAqn60g=="],
 
     "eventemitter3": ["eventemitter3@5.0.0", "", {}, "sha512-riuVbElZZNXLeLEoprfNYoDSwTBRR44X3mnhdI1YcnENpWTCsTTVZ2zFuqQcpoyqPQIUXdiPEU0ECAq0KQRaHg=="],
 
     "execa": ["execa@8.0.1", "", { "dependencies": { "cross-spawn": "^7.0.3", "get-stream": "^8.0.1", "human-signals": "^5.0.0", "is-stream": "^3.0.0", "merge-stream": "^2.0.0", "npm-run-path": "^5.1.0", "onetime": "^6.0.0", "signal-exit": "^4.1.0", "strip-final-newline": "^3.0.0" } }, "sha512-VyhnebXciFV2DESc+p6B+y0LjSm0krU4OgJN44qFAhBY0TJ+1V61tYD2+wHusZ6F9n5K+vl8k0sTy7PEfV4qpg=="],
 
+    "extend": ["extend@3.0.2", "", {}, "sha512-fjquC59cD7CyW6urNXK0FBufkZcoiGG80wTuPujX590cB5Ttln20E2UB4S/WARVqhXffZl2LNgS+gQdPIIim/g=="],
+
     "fast-decode-uri-component": ["fast-decode-uri-component@1.0.1", "", {}, "sha512-WKgKWg5eUxvRZGwW8FvfbaH7AXSh2cL+3j5fMGzUMCxWBJ3dV3a7Wz8y2f/uQ0e3B6WmodD3oS54jTQ9HVTIIg=="],
 
     "fast-deep-equal": ["fast-deep-equal@3.1.3", "", {}, "sha512-f3qQ9oQy9j2AhBe/H9VC91wLmKBCCU/gDOnKNAYG5hswO7BLKj09Hc5HYNz9cGI++xlpDCIgDaitVs03ATR84Q=="],
@@ -317,20 +364,44 @@
 
     "has-flag": ["has-flag@3.0.0", "", {}, "sha512-sKJf1+ceQBr4SMkvQnBDNDtf4TXpVhVGateu0t918bl30FnbE2m4vNLX+VWe/dpjlb+HugGYzW7uQXH98HPEYw=="],
 
+    "hast-util-sanitize": ["hast-util-sanitize@5.0.2", "", { "dependencies": { "@types/hast": "^3.0.0", "@ungap/structured-clone": "^1.0.0", "unist-util-position": "^5.0.0" } }, "sha512-3yTWghByc50aGS7JlGhk61SPenfE/p1oaFeNwkOOyrscaOkMGrcW9+Cy/QAIOBpZxP1yqDIzFMR0+Np0i0+usg=="],
+
+    "hast-util-to-html": ["hast-util-to-html@9.0.5", "", { "dependencies": { "@types/hast": "^3.0.0", "@types/unist": "^3.0.0", "ccount": "^2.0.0", "comma-separated-tokens": "^2.0.0", "hast-util-whitespace": "^3.0.0", "html-void-elements": "^3.0.0", "mdast-util-to-hast": "^13.0.0", "property-information": "^7.0.0", "space-separated-tokens": "^2.0.0", "stringify-entities": "^4.0.0", "zwitch": "^2.0.4" } }, "sha512-OguPdidb+fbHQSU4Q4ZiLKnzWo8Wwsf5bZfbvu7//a9oTYoqD/fWpe96NuHkoS9h0ccGOTe0C4NGXdtS0iObOw=="],
+
+    "hast-util-to-jsx-runtime": ["hast-util-to-jsx-runtime@2.3.6", "", { "dependencies": { "@types/estree": "^1.0.0", "@types/hast": "^3.0.0", "@types/unist": "^3.0.0", "comma-separated-tokens": "^2.0.0", "devlop": "^1.0.0", "estree-util-is-identifier-name": "^3.0.0", "hast-util-whitespace": "^3.0.0", "mdast-util-mdx-expression": "^2.0.0", "mdast-util-mdx-jsx": "^3.0.0", "mdast-util-mdxjs-esm": "^2.0.0", "property-information": "^7.0.0", "space-separated-tokens": "^2.0.0", "style-to-js": "^1.0.0", "unist-util-position": "^5.0.0", "vfile-message": "^4.0.0" } }, "sha512-zl6s8LwNyo1P9uw+XJGvZtdFF1GdAkOg8ujOw+4Pyb76874fLps4ueHXDhXWdk6YHQ6OgUtinliG7RsYvCbbBg=="],
+
+    "hast-util-whitespace": ["hast-util-whitespace@3.0.0", "", { "dependencies": { "@types/hast": "^3.0.0" } }, "sha512-88JUN06ipLwsnv+dVn+OIYOvAuvBMy/Qoi6O7mQHxdPXpjy+Cd6xRkWwux7DKO+4sYILtLBRIKgsdpS2gQc7qw=="],
+
+    "html-url-attributes": ["html-url-attributes@3.0.1", "", {}, "sha512-ol6UPyBWqsrO6EJySPz2O7ZSr856WDrEzM5zMqp+FJJLGMW35cLYmmZnl0vztAZxRUoNZJFTCohfjuIJ8I4QBQ=="],
+
+    "html-void-elements": ["html-void-elements@3.0.0", "", {}, "sha512-bEqo66MRXsUGxWHV5IP0PUiAWwoEjba4VCzg0LjFJBpchPaTfyfCKTG6bc5F8ucKec3q5y6qOdGyYTSBEvhCrg=="],
+
     "human-signals": ["human-signals@5.0.0", "", {}, "sha512-AXcZb6vzzrFAUE61HnN4mpLqd/cSIwNQjtNWR0euPm6y0iqx3G4gOXaIDdtdDwZmhwe82LA6+zinmW4UBWVePQ=="],
 
     "ignore": ["ignore@5.3.0", "", {}, "sha512-g7dmpshy+gD7mh88OC9NwSGTKoc3kyLAZQRU1mt53Aw/vnvfXnbC+F/7F7QoYVKbV+KNvJx8wArewKy1vXMtlg=="],
 
+    "inline-style-parser": ["inline-style-parser@0.2.7", "", {}, "sha512-Nb2ctOyNR8DqQoR0OwRG95uNWIC0C1lCgf5Naz5H6Ji72KZ8OcFZLz2P5sNgwlyoJ8Yif11oMuYs5pBQa86csA=="],
+
     "ipaddr.js": ["ipaddr.js@2.2.0", "", {}, "sha512-Ag3wB2o37wslZS19hZqorUnrnzSkpOVy+IiiDEiTqNubEYpYuHWIf6K4psgN2ZWKExS4xhVCrRVfb/wfW8fWJA=="],
 
+    "is-alphabetical": ["is-alphabetical@2.0.1", "", {}, "sha512-FWyyY60MeTNyeSRpkM2Iry0G9hpr7/9kD40mD/cGQEuilcZYS4okz8SN2Q6rLCJ8gbCt6fN+rC+6tMGS99LaxQ=="],
+
+    "is-alphanumerical": ["is-alphanumerical@2.0.1", "", { "dependencies": { "is-alphabetical": "^2.0.0", "is-decimal": "^2.0.0" } }, "sha512-hmbYhX/9MUMF5uh7tOXyK/n0ZvWpad5caBA17GsC6vyuCqaWliRG5K1qS9inmUhEMaOBIW7/whAnSwveW/LtZw=="],
+
     "is-arrayish": ["is-arrayish@0.3.2", "", {}, "sha512-eVRqCvVlZbuw3GrM63ovNSNAeA1K16kaR/LRY/92w0zxQ5/1YzwblUX652i4Xs9RwAGjW9d9y6X88t8OaAJfWQ=="],
 
+    "is-decimal": ["is-decimal@2.0.1", "", {}, "sha512-AAB9hiomQs5DXWcRB1rqsxGUstbRroFOPPVAomNk/3XHR5JyEZChOyTWe2oayKnsSsr/kcGqF+z6yuH6HHpN0A=="],
+
     "is-extglob": ["is-extglob@2.1.1", "", {}, "sha512-SbKbANkN603Vi4jEZv49LeVJMn4yGwsbzZworEoyEiutsN3nJYdbO36zfhGJ6QEDpOZIFkDtnq5JRxmvl3jsoQ=="],
 
     "is-glob": ["is-glob@4.0.3", "", { "dependencies": { "is-extglob": "^2.1.1" } }, "sha512-xelSayHH36ZgE7ZWhli7pW34hNbNl8Ojv5KVmkJD4hBdD3th8Tfk9vYasLM+mXWOZhFkgZfxhLSnrwRr4elSSg=="],
 
+    "is-hexadecimal": ["is-hexadecimal@2.0.1", "", {}, "sha512-DgZQp241c8oO6cA1SbTEWiXeoxV42vlcJxgH+B3hi1AiqqKruZR3ZGF8In3fj4+/y/7rHvlOZLZtgJ/4ttYGZg=="],
+
     "is-number": ["is-number@7.0.0", "", {}, "sha512-41Cifkg6e8TylSpdtTpeLVMqvSBEVzTttHvERD741+pnZ8ANv0004MRL43QKPDlK9cGvNp6NZWZUBlbGXYxxng=="],
 
+    "is-plain-obj": ["is-plain-obj@4.1.0", "", {}, "sha512-+Pgi+vMuUNkJyExiMBt5IlFoMyKnr5zhJ4Uspz58WOhBF5QoIZkFyNHIbBAtHwzVAgk5RtndVNsDRN61/mmDqg=="],
+
     "is-stream": ["is-stream@3.0.0", "", {}, "sha512-LnQR4bZ9IADDRSkvpqMGvt/tEJWclzklNgSw48V5EAaAeDd6qGvN8ei6k5p0tvxSR171VmGyHuTiAOfxAbr8kA=="],
 
     "isexe": ["isexe@2.0.0", "", {}, "sha512-RHxMLp9lnKHGHRng9QFhRCMbYAcVpn69smSGcq3f36xjgVVWThj4qqLbTLlq7Ssj8B+fIQ1EuCEGI2lKsyQeIw=="],
@@ -351,16 +422,76 @@
 
     "lodash": ["lodash@4.17.21", "", {}, "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg=="],
 
-    "loose-envify": ["loose-envify@1.4.0", "", { "dependencies": { "js-tokens": "^3.0.0 || ^4.0.0" }, "bin": { "loose-envify": "cli.js" } }, "sha512-lyuxPGr/Wfhrlem2CL/UcnUc1zcqKAImBDzukY7Y5F/yQiNdko6+fRLevlw1HgMySw7f611UIY408EtxRSoK3Q=="],
+    "longest-streak": ["longest-streak@3.1.0", "", {}, "sha512-9Ri+o0JYgehTaVBBDoMqIl8GXtbWg711O3srftcHhZ0dqnETqLaoIK0x17fUw9rFSlK/0NlsKe0Ahhyl5pXE2g=="],
 
     "lru-cache": ["lru-cache@5.1.1", "", { "dependencies": { "yallist": "^3.0.2" } }, "sha512-KpNARQA3Iwv+jTA0utUVVbrh+Jlrr1Fv0e56GGzAFOXN7dk/FviaDW8LHmK52DlcH4WP2n6gI8vN1aesBFgo9w=="],
 
     "map-stream": ["map-stream@0.1.0", "", {}, "sha512-CkYQrPYZfWnu/DAmVCpTSX/xHpKZ80eKh2lAkyA6AJTef6bW+6JpbQZN5rofum7da+SyN1bi5ctTm+lTfcCW3g=="],
 
+    "marked": ["marked@17.0.1", "", { "bin": { "marked": "bin/marked.js" } }, "sha512-boeBdiS0ghpWcSwoNm/jJBwdpFaMnZWRzjA6SkUMYb40SVaN1x7mmfGKp0jvexGcx+7y2La5zRZsYFZI6Qpypg=="],
+
+    "mdast-util-from-markdown": ["mdast-util-from-markdown@2.0.2", "", { "dependencies": { "@types/mdast": "^4.0.0", "@types/unist": "^3.0.0", "decode-named-character-reference": "^1.0.0", "devlop": "^1.0.0", "mdast-util-to-string": "^4.0.0", "micromark": "^4.0.0", "micromark-util-decode-numeric-character-reference": "^2.0.0", "micromark-util-decode-string": "^2.0.0", "micromark-util-normalize-identifier": "^2.0.0", "micromark-util-symbol": "^2.0.0", "micromark-util-types": "^2.0.0", "unist-util-stringify-position": "^4.0.0" } }, "sha512-uZhTV/8NBuw0WHkPTrCqDOl0zVe1BIng5ZtHoDk49ME1qqcjYmmLmOf0gELgcRMxN4w2iuIeVso5/6QymSrgmA=="],
+
+    "mdast-util-mdx-expression": ["mdast-util-mdx-expression@2.0.1", "", { "dependencies": { "@types/estree-jsx": "^1.0.0", "@types/hast": "^3.0.0", "@types/mdast": "^4.0.0", "devlop": "^1.0.0", "mdast-util-from-markdown": "^2.0.0", "mdast-util-to-markdown": "^2.0.0" } }, "sha512-J6f+9hUp+ldTZqKRSg7Vw5V6MqjATc+3E4gf3CFNcuZNWD8XdyI6zQ8GqH7f8169MM6P7hMBRDVGnn7oHB9kXQ=="],
+
+    "mdast-util-mdx-jsx": ["mdast-util-mdx-jsx@3.2.0", "", { "dependencies": { "@types/estree-jsx": "^1.0.0", "@types/hast": "^3.0.0", "@types/mdast": "^4.0.0", "@types/unist": "^3.0.0", "ccount": "^2.0.0", "devlop": "^1.1.0", "mdast-util-from-markdown": "^2.0.0", "mdast-util-to-markdown": "^2.0.0", "parse-entities": "^4.0.0", "stringify-entities": "^4.0.0", "unist-util-stringify-position": "^4.0.0", "vfile-message": "^4.0.0" } }, "sha512-lj/z8v0r6ZtsN/cGNNtemmmfoLAFZnjMbNyLzBafjzikOM+glrjNHPlf6lQDOTccj9n5b0PPihEBbhneMyGs1Q=="],
+
+    "mdast-util-mdxjs-esm": ["mdast-util-mdxjs-esm@2.0.1", "", { "dependencies": { "@types/estree-jsx": "^1.0.0", "@types/hast": "^3.0.0", "@types/mdast": "^4.0.0", "devlop": "^1.0.0", "mdast-util-from-markdown": "^2.0.0", "mdast-util-to-markdown": "^2.0.0" } }, "sha512-EcmOpxsZ96CvlP03NghtH1EsLtr0n9Tm4lPUJUBccV9RwUOneqSycg19n5HGzCf+10LozMRSObtVr3ee1WoHtg=="],
+
+    "mdast-util-phrasing": ["mdast-util-phrasing@4.1.0", "", { "dependencies": { "@types/mdast": "^4.0.0", "unist-util-is": "^6.0.0" } }, "sha512-TqICwyvJJpBwvGAMZjj4J2n0X8QWp21b9l0o7eXyVJ25YNWYbJDVIyD1bZXE6WtV6RmKJVYmQAKWa0zWOABz2w=="],
+
+    "mdast-util-to-hast": ["mdast-util-to-hast@13.2.1", "", { "dependencies": { "@types/hast": "^3.0.0", "@types/mdast": "^4.0.0", "@ungap/structured-clone": "^1.0.0", "devlop": "^1.0.0", "micromark-util-sanitize-uri": "^2.0.0", "trim-lines": "^3.0.0", "unist-util-position": "^5.0.0", "unist-util-visit": "^5.0.0", "vfile": "^6.0.0" } }, "sha512-cctsq2wp5vTsLIcaymblUriiTcZd0CwWtCbLvrOzYCDZoWyMNV8sZ7krj09FSnsiJi3WVsHLM4k6Dq/yaPyCXA=="],
+
+    "mdast-util-to-markdown": ["mdast-util-to-markdown@2.1.2", "", { "dependencies": { "@types/mdast": "^4.0.0", "@types/unist": "^3.0.0", "longest-streak": "^3.0.0", "mdast-util-phrasing": "^4.0.0", "mdast-util-to-string": "^4.0.0", "micromark-util-classify-character": "^2.0.0", "micromark-util-decode-string": "^2.0.0", "unist-util-visit": "^5.0.0", "zwitch": "^2.0.0" } }, "sha512-xj68wMTvGXVOKonmog6LwyJKrYXZPvlwabaryTjLh9LuvovB/KAH+kvi8Gjj+7rJjsFi23nkUxRQv1KqSroMqA=="],
+
+    "mdast-util-to-string": ["mdast-util-to-string@4.0.0", "", { "dependencies": { "@types/mdast": "^4.0.0" } }, "sha512-0H44vDimn51F0YwvxSJSm0eCDOJTRlmN0R1yBh4HLj9wiV1Dn0QoXGbvFAWj2hSItVTlCmBF1hqKlIyUBVFLPg=="],
+
     "merge-stream": ["merge-stream@2.0.0", "", {}, "sha512-abv/qOcuPfk3URPfDzmZU1LKmuw8kT+0nIHvKrKgFrwifol/doWcdA4ZqsWQ8ENrFKkd67Mfpo/LovbIUsbt3w=="],
 
     "merge2": ["merge2@1.4.1", "", {}, "sha512-8q7VEgMJW4J8tcfVPy8g09NcQwZdbwFEqhe/WZkoIzjn/3TGDwtOCYtXGxA3O8tPzpczCCDgv+P2P5y00ZJOOg=="],
 
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+
+    "micromark-core-commonmark": ["micromark-core-commonmark@2.0.3", "", { "dependencies": { "decode-named-character-reference": "^1.0.0", "devlop": "^1.0.0", "micromark-factory-destination": "^2.0.0", "micromark-factory-label": "^2.0.0", "micromark-factory-space": "^2.0.0", "micromark-factory-title": "^2.0.0", "micromark-factory-whitespace": "^2.0.0", "micromark-util-character": "^2.0.0", "micromark-util-chunked": "^2.0.0", "micromark-util-classify-character": "^2.0.0", "micromark-util-html-tag-name": "^2.0.0", "micromark-util-normalize-identifier": "^2.0.0", "micromark-util-resolve-all": "^2.0.0", "micromark-util-subtokenize": "^2.0.0", "micromark-util-symbol": "^2.0.0", "micromark-util-types": "^2.0.0" } }, "sha512-RDBrHEMSxVFLg6xvnXmb1Ayr2WzLAWjeSATAoxwKYJV94TeNavgoIdA0a9ytzDSVzBy2YKFK+emCPOEibLeCrg=="],
+
+    "micromark-factory-destination": ["micromark-factory-destination@2.0.1", "", { "dependencies": { "micromark-util-character": "^2.0.0", "micromark-util-symbol": "^2.0.0", "micromark-util-types": "^2.0.0" } }, "sha512-Xe6rDdJlkmbFRExpTOmRj9N3MaWmbAgdpSrBQvCFqhezUn4AHqJHbaEnfbVYYiexVSs//tqOdY/DxhjdCiJnIA=="],
+
+    "micromark-factory-label": ["micromark-factory-label@2.0.1", "", { "dependencies": { "devlop": "^1.0.0", "micromark-util-character": "^2.0.0", "micromark-util-symbol": "^2.0.0", "micromark-util-types": "^2.0.0" } }, "sha512-VFMekyQExqIW7xIChcXn4ok29YE3rnuyveW3wZQWWqF4Nv9Wk5rgJ99KzPvHjkmPXF93FXIbBp6YdW3t71/7Vg=="],
+
+    "micromark-factory-space": ["micromark-factory-space@2.0.1", "", { "dependencies": { "micromark-util-character": "^2.0.0", "micromark-util-types": "^2.0.0" } }, "sha512-zRkxjtBxxLd2Sc0d+fbnEunsTj46SWXgXciZmHq0kDYGnck/ZSGj9/wULTV95uoeYiK5hRXP2mJ98Uo4cq/LQg=="],
+
+    "micromark-factory-title": ["micromark-factory-title@2.0.1", "", { "dependencies": { "micromark-factory-space": "^2.0.0", "micromark-util-character": "^2.0.0", "micromark-util-symbol": "^2.0.0", "micromark-util-types": "^2.0.0" } }, "sha512-5bZ+3CjhAd9eChYTHsjy6TGxpOFSKgKKJPJxr293jTbfry2KDoWkhBb6TcPVB4NmzaPhMs1Frm9AZH7OD4Cjzw=="],
+
+    "micromark-factory-whitespace": ["micromark-factory-whitespace@2.0.1", "", { "dependencies": { "micromark-factory-space": "^2.0.0", "micromark-util-character": "^2.0.0", "micromark-util-symbol": "^2.0.0", "micromark-util-types": "^2.0.0" } }, "sha512-Ob0nuZ3PKt/n0hORHyvoD9uZhr+Za8sFoP+OnMcnWK5lngSzALgQYKMr9RJVOWLqQYuyn6ulqGWSXdwf6F80lQ=="],
+
+    "micromark-util-character": ["micromark-util-character@2.1.1", "", { "dependencies": { "micromark-util-symbol": "^2.0.0", "micromark-util-types": "^2.0.0" } }, "sha512-wv8tdUTJ3thSFFFJKtpYKOYiGP2+v96Hvk4Tu8KpCAsTMs6yi+nVmGh1syvSCsaxz45J6Jbw+9DD6g97+NV67Q=="],
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+    "micromark-util-chunked": ["micromark-util-chunked@2.0.1", "", { "dependencies": { "micromark-util-symbol": "^2.0.0" } }, "sha512-QUNFEOPELfmvv+4xiNg2sRYeS/P84pTW0TCgP5zc9FpXetHY0ab7SxKyAQCNCc1eK0459uoLI1y5oO5Vc1dbhA=="],
+
+    "micromark-util-classify-character": ["micromark-util-classify-character@2.0.1", "", { "dependencies": { "micromark-util-character": "^2.0.0", "micromark-util-symbol": "^2.0.0", "micromark-util-types": "^2.0.0" } }, "sha512-K0kHzM6afW/MbeWYWLjoHQv1sgg2Q9EccHEDzSkxiP/EaagNzCm7T/WMKZ3rjMbvIpvBiZgwR3dKMygtA4mG1Q=="],
+
+    "micromark-util-combine-extensions": ["micromark-util-combine-extensions@2.0.1", "", { "dependencies": { "micromark-util-chunked": "^2.0.0", "micromark-util-types": "^2.0.0" } }, "sha512-OnAnH8Ujmy59JcyZw8JSbK9cGpdVY44NKgSM7E9Eh7DiLS2E9RNQf0dONaGDzEG9yjEl5hcqeIsj4hfRkLH/Bg=="],
+
+    "micromark-util-decode-numeric-character-reference": ["micromark-util-decode-numeric-character-reference@2.0.2", "", { "dependencies": { "micromark-util-symbol": "^2.0.0" } }, "sha512-ccUbYk6CwVdkmCQMyr64dXz42EfHGkPQlBj5p7YVGzq8I7CtjXZJrubAYezf7Rp+bjPseiROqe7G6foFd+lEuw=="],
+
+    "micromark-util-decode-string": ["micromark-util-decode-string@2.0.1", "", { "dependencies": { "decode-named-character-reference": "^1.0.0", "micromark-util-character": "^2.0.0", "micromark-util-decode-numeric-character-reference": "^2.0.0", "micromark-util-symbol": "^2.0.0" } }, "sha512-nDV/77Fj6eH1ynwscYTOsbK7rR//Uj0bZXBwJZRfaLEJ1iGBR6kIfNmlNqaqJf649EP0F3NWNdeJi03elllNUQ=="],
+
+    "micromark-util-encode": ["micromark-util-encode@2.0.1", "", {}, "sha512-c3cVx2y4KqUnwopcO9b/SCdo2O67LwJJ/UyqGfbigahfegL9myoEFoDYZgkT7f36T0bLrM9hZTAaAyH+PCAXjw=="],
+
+    "micromark-util-html-tag-name": ["micromark-util-html-tag-name@2.0.1", "", {}, "sha512-2cNEiYDhCWKI+Gs9T0Tiysk136SnR13hhO8yW6BGNyhOC4qYFnwF1nKfD3HFAIXA5c45RrIG1ub11GiXeYd1xA=="],
+
+    "micromark-util-normalize-identifier": ["micromark-util-normalize-identifier@2.0.1", "", { "dependencies": { "micromark-util-symbol": "^2.0.0" } }, "sha512-sxPqmo70LyARJs0w2UclACPUUEqltCkJ6PhKdMIDuJ3gSf/Q+/GIe3WKl0Ijb/GyH9lOpUkRAO2wp0GVkLvS9Q=="],
+
+    "micromark-util-resolve-all": ["micromark-util-resolve-all@2.0.1", "", { "dependencies": { "micromark-util-types": "^2.0.0" } }, "sha512-VdQyxFWFT2/FGJgwQnJYbe1jjQoNTS4RjglmSjTUlpUMa95Htx9NHeYW4rGDJzbjvCsl9eLjMQwGeElsqmzcHg=="],
+
+    "micromark-util-sanitize-uri": ["micromark-util-sanitize-uri@2.0.1", "", { "dependencies": { "micromark-util-character": "^2.0.0", "micromark-util-encode": "^2.0.0", "micromark-util-symbol": "^2.0.0" } }, "sha512-9N9IomZ/YuGGZZmQec1MbgxtlgougxTodVwDzzEouPKo3qFWvymFHWcnDi2vzV1ff6kas9ucW+o3yzJK9YB1AQ=="],
+
+    "micromark-util-subtokenize": ["micromark-util-subtokenize@2.1.0", "", { "dependencies": { "devlop": "^1.0.0", "micromark-util-chunked": "^2.0.0", "micromark-util-symbol": "^2.0.0", "micromark-util-types": "^2.0.0" } }, "sha512-XQLu552iSctvnEcgXw6+Sx75GflAPNED1qx7eBJ+wydBb2KCbRZe+NwvIEEMM83uml1+2WSXpBAcp9IUCgCYWA=="],
+
+    "micromark-util-symbol": ["micromark-util-symbol@2.0.1", "", {}, "sha512-vs5t8Apaud9N28kgCrRUdEed4UJ+wWNvicHLPxCa9ENlYuAY31M0ETy5y1vA33YoNPDFTghEbnh6efaE8h4x0Q=="],
+
+    "micromark-util-types": ["micromark-util-types@2.0.2", "", {}, "sha512-Yw0ECSpJoViF1qTU4DC6NwtC4aWGt1EkzaQB8KPPyCRR8z9TWeV0HbEFGTO+ZY1wB22zmxnJqhPyTpOVCpeHTA=="],
+
     "micromatch": ["micromatch@4.0.5", "", { "dependencies": { "braces": "^3.0.2", "picomatch": "^2.3.1" } }, "sha512-DMy+ERcEW2q8Z2Po+WNXuw3c5YaUSFjAO5GsJqfEl7UjvtIuFKO6ZrKvcItdy98dwFI2N1tg3zNIdKaQT+aNdA=="],
 
     "mimic-fn": ["mimic-fn@4.0.0", "", {}, "sha512-vqiC06CuhBTUdZH+RYl8sFrL096vA45Ok5ISO6sE/Mr1jRbGH4Csnhi8f3wKVl7x8mO4Au7Ir9D3Oyv1VYMFJw=="],
@@ -371,7 +502,7 @@
 
     "minizlib": ["minizlib@3.1.0", "", { "dependencies": { "minipass": "^7.1.2" } }, "sha512-KZxYo1BUkWD2TVFLr0MQoM8vUUigWD3LlD83a/75BqC+4qE0Hb1Vo5v1FgcfaNXvfXzr+5EhQ6ing/CaBijTlw=="],
 
-    "mitata": ["mitata@1.0.25", "", {}, "sha512-0v5qZtVW5vwj9FDvYfraR31BMDcRLkhSFWPTLaxx/Z3/EvScfVtAAWtMI2ArIbBcwh7P86dXh0lQWKiXQPlwYA=="],
+    "mitata": ["mitata@1.0.20", "", {}, "sha512-oHWYGX5bi4wGT/1zrhiZAEzqTV14Vq6/PUTW8WK0b3YHBBQcZz2QFm+InHhjnD0I7B6CMtwdGt2K0938r7YTdQ=="],
 
     "ms": ["ms@2.1.2", "", {}, "sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w=="],
 
@@ -387,6 +518,8 @@
 
     "onetime": ["onetime@6.0.0", "", { "dependencies": { "mimic-fn": "^4.0.0" } }, "sha512-1FlR+gjXK7X+AsAHso35MnyN5KqGwJRi/31ft6x0M194ht7S+rWAvd7PHss9xSKMzE0asv1pyIHaJYq+BbacAQ=="],
 
+    "parse-entities": ["parse-entities@4.0.2", "", { "dependencies": { "@types/unist": "^2.0.0", "character-entities-legacy": "^3.0.0", "character-reference-invalid": "^2.0.0", "decode-named-character-reference": "^1.0.0", "is-alphanumerical": "^2.0.0", "is-decimal": "^2.0.0", "is-hexadecimal": "^2.0.0" } }, "sha512-GG2AQYWoLgL877gQIKeRPGO1xF9+eG1ujIb5soS5gPvLQ1y2o8FL90w2QWNdf9I361Mpp7726c+lj3U0qK1uGw=="],
+
     "path-key": ["path-key@3.1.1", "", {}, "sha512-ojmeN0qd+y0jszEtoY48r0Peq5dwMEkIlCOu6Q5f41lfkswXuKtYrhgoTpLnyIcHm24Uhqx+5Tqm2InSwLhE6Q=="],
 
     "path-type": ["path-type@4.0.0", "", {}, "sha512-gDKb8aZMDeD/tZWs9P6+q0J9Mwkdl6xMV8TjnGP3qJVJ06bdMgkbBlLU8IdfOsIsFz2BW1rNVT3XuNEl8zPAvw=="],
@@ -407,18 +540,32 @@
 
     "process-warning": ["process-warning@5.0.0", "", {}, "sha512-a39t9ApHNx2L4+HBnQKqxxHNs1r7KF+Intd8Q/g1bUh6q0WIp9voPXJ/x0j+ZL45KF1pJd9+q2jLIRMfvEshkA=="],
 
+    "property-information": ["property-information@7.1.0", "", {}, "sha512-TwEZ+X+yCJmYfL7TPUOcvBZ4QfoT5YenQiJuX//0th53DE6w0xxLEtfK3iyryQFddXuvkIk51EEgrJQ0WJkOmQ=="],
+
     "ps-tree": ["ps-tree@1.2.0", "", { "dependencies": { "event-stream": "=3.3.4" }, "bin": { "ps-tree": "./bin/ps-tree.js" } }, "sha512-0VnamPPYHl4uaU/nSFeZZpR21QAWRz+sRv4iW9+v/GS/J5U5iZB5BNN6J0RMoOvdx2gWM2+ZFMIm58q24e4UYA=="],
 
     "queue-microtask": ["queue-microtask@1.2.3", "", {}, "sha512-NuaNSa6flKT5JaSYQzJok04JzTL1CA6aGhv5rfLW3PgqA+M2ChpZQnAC8h8i4ZFkBS8X5RqkDBHA7r4hej3K9A=="],
 
     "quick-format-unescaped": ["quick-format-unescaped@4.0.4", "", {}, "sha512-tYC1Q1hgyRuHgloV/YXs2w15unPVh8qfu/qCTfhTYamaw7fyhumKa2yGpdSo87vY32rIclj+4fWYQXUMs9EHvg=="],
 
-    "react": ["react@18.3.1", "", { "dependencies": { "loose-envify": "^1.1.0" } }, "sha512-wS+hAgJShR0KhEvPJArfuPVN1+Hz1t0Y6n5jLrGQbkb4urgPE/0Rve+1kMB1v/oWgHgm4WIcV+i7F2pTVj+2iQ=="],
+    "react": ["react@19.2.4", "", {}, "sha512-9nfp2hYpCwOjAN+8TZFGhtWEwgvWHXqESH8qT89AT/lWklpLON22Lc8pEtnpsZz7VmawabSU0gCjnj8aC0euHQ=="],
 
-    "react-dom": ["react-dom@18.3.1", "", { "dependencies": { "loose-envify": "^1.1.0", "scheduler": "^0.23.2" }, "peerDependencies": { "react": "^18.3.1" } }, "sha512-5m4nQKp+rZRb09LNH59GM4BxTh9251/ylbKIbpe7TpGxfJ+9kv6BLkLBXIjjspbgbnIBNqlI23tRnTWT0snUIw=="],
+    "react-dom": ["react-dom@19.2.4", "", { "dependencies": { "scheduler": "^0.27.0" }, "peerDependencies": { "react": "^19.2.4" } }, "sha512-AXJdLo8kgMbimY95O2aKQqsz2iWi9jMgKJhRBAxECE4IFxfcazB2LmzloIoibJI3C12IlY20+KFaLv+71bUJeQ=="],
+
+    "react-markdown": ["react-markdown@9.1.0", "", { "dependencies": { "@types/hast": "^3.0.0", "@types/mdast": "^4.0.0", "devlop": "^1.0.0", "hast-util-to-jsx-runtime": "^2.0.0", "html-url-attributes": "^3.0.0", "mdast-util-to-hast": "^13.0.0", "remark-parse": "^11.0.0", "remark-rehype": "^11.0.0", "unified": "^11.0.0", "unist-util-visit": "^5.0.0", "vfile": "^6.0.0" }, "peerDependencies": { "@types/react": ">=18", "react": ">=18" } }, "sha512-xaijuJB0kzGiUdG7nc2MOMDUDBWPyGAjZtUrow9XxUeua8IqeP+VlIfAZ3bphpcLTnSZXz6z9jcVC/TCwbfgdw=="],
 
     "real-require": ["real-require@0.2.0", "", {}, "sha512-57frrGM/OCTLqLOAh0mhVA9VBMHd+9U7Zb2THMGdBUoZVOtGbJzjxsYGDJ3A9AYYCP4hn6y1TVbaOfzWtm5GFg=="],
 
+    "remark": ["remark@15.0.1", "", { "dependencies": { "@types/mdast": "^4.0.0", "remark-parse": "^11.0.0", "remark-stringify": "^11.0.0", "unified": "^11.0.0" } }, "sha512-Eht5w30ruCXgFmxVUSlNWQ9iiimq07URKeFS3hNc8cUWy1llX4KDWfyEDZRycMc+znsN9Ux5/tJ/BFdgdOwA3A=="],
+
+    "remark-html": ["remark-html@16.0.1", "", { "dependencies": { "@types/mdast": "^4.0.0", "hast-util-sanitize": "^5.0.0", "hast-util-to-html": "^9.0.0", "mdast-util-to-hast": "^13.0.0", "unified": "^11.0.0" } }, "sha512-B9JqA5i0qZe0Nsf49q3OXyGvyXuZFDzAP2iOFLEumymuYJITVpiH1IgsTEwTpdptDmZlMDMWeDmSawdaJIGCXQ=="],
+
+    "remark-parse": ["remark-parse@11.0.0", "", { "dependencies": { "@types/mdast": "^4.0.0", "mdast-util-from-markdown": "^2.0.0", "micromark-util-types": "^2.0.0", "unified": "^11.0.0" } }, "sha512-FCxlKLNGknS5ba/1lmpYijMUzX2esxW5xQqjWxw2eHFfS2MSdaHVINFmhjo+qN1WhZhNimq0dZATN9pH0IDrpA=="],
+
+    "remark-rehype": ["remark-rehype@11.1.2", "", { "dependencies": { "@types/hast": "^3.0.0", "@types/mdast": "^4.0.0", "mdast-util-to-hast": "^13.0.0", "unified": "^11.0.0", "vfile": "^6.0.0" } }, "sha512-Dh7l57ianaEoIpzbp0PC9UKAdCSVklD8E5Rpw7ETfbTl3FqcOOgq5q2LVDhgGCkaBv7p24JXikPdvhhmHvKMsw=="],
+
+    "remark-stringify": ["remark-stringify@11.0.0", "", { "dependencies": { "@types/mdast": "^4.0.0", "mdast-util-to-markdown": "^2.0.0", "unified": "^11.0.0" } }, "sha512-1OSmLd3awB/t8qdoEOMazZkNsfVTeY4fTsgzcQFdXNq8ToTN4ZGwrMnlda4K6smTFKD+GRV6O48i6Z4iKgPPpw=="],
+
     "require-from-string": ["require-from-string@2.0.2", "", {}, "sha512-Xf0nWe6RseziFMu+Ap9biiUbmplq6S9/p+7w7YXP/JBHhrUDDUhwa+vANyubuqfZWTveU//DYVGsDG7RKL/vEw=="],
 
     "ret": ["ret@0.5.0", "", {}, "sha512-I1XxrZSQ+oErkRR4jYbAyEEu2I0avBvvMM5JN+6EBprOGRCs63ENqZ3vjavq8fBw2+62G5LF5XelKwuJpcvcxw=="],
@@ -433,7 +580,7 @@
 
     "safe-stable-stringify": ["safe-stable-stringify@2.5.0", "", {}, "sha512-b3rppTKm9T+PsVCBEOUR46GWI7fdOs00VKZ1+9c1EWDaDMvjQc6tUwuFyIprgGgTcWoVHSKrU8H31ZHA2e0RHA=="],
 
-    "scheduler": ["scheduler@0.23.2", "", { "dependencies": { "loose-envify": "^1.1.0" } }, "sha512-UOShsPwz7NrMUqhR6t0hWjFduvOzbtv7toDH1/hIrfRNIDBnnBWd0CwJTGvTpngVlmwGCdP9/Zl/tVrDqcuYzQ=="],
+    "scheduler": ["scheduler@0.27.0", "", {}, "sha512-eNv+WrVbKu1f3vbYJT/xtiF5syA5HPIMtf9IgY/nKg0sWqzAUEvqY/xm7OcZc/qafLx/iO9FgOmeSAp4v5ti/Q=="],
 
     "secure-json-parse": ["secure-json-parse@4.0.0", "", {}, "sha512-dxtLJO6sc35jWidmLxo7ij+Eg48PM/kleBsxpC8QJE0qJICe+KawkDQmvCMZUr9u7WKVHgMW6vy3fQ7zMiFZMA=="],
 
@@ -453,6 +600,8 @@
 
     "sonic-boom": ["sonic-boom@4.2.0", "", { "dependencies": { "atomic-sleep": "^1.0.0" } }, "sha512-INb7TM37/mAcsGmc9hyyI6+QR3rR1zVRu36B0NeGXKnOOLiZOfER5SA+N7X7k3yUYRzLWafduTDvJAfDswwEww=="],
 
+    "space-separated-tokens": ["space-separated-tokens@2.0.2", "", {}, "sha512-PEGlAwrG8yXGXRjW32fGbg66JAlOAwbObuqVoJpv/mRgoWDQfgH1wDPvtzWyUSNAXBGSk8h755YDbbcEy3SH2Q=="],
+
     "split": ["split@0.3.3", "", { "dependencies": { "through": "2" } }, "sha512-wD2AeVmxXRBoX44wAycgjVpMhvbwdI2aZjCkvfNcH1YqHQvJVa1duWc73OyVGJUc05fhFaTZeQ/PYsrmyH0JVA=="],
 
     "split2": ["split2@4.2.0", "", {}, "sha512-UcjcJOWknrNkF6PLX83qcHM6KHgVKNkV62Y8a5uYDVv9ydGQVwAHMKqHdJje1VTWpljG0WYpCDhrCdAOYH4TWg=="],
@@ -461,10 +610,16 @@
 
     "string-width": ["string-width@7.1.0", "", { "dependencies": { "emoji-regex": "^10.3.0", "get-east-asian-width": "^1.0.0", "strip-ansi": "^7.1.0" } }, "sha512-SEIJCWiX7Kg4c129n48aDRwLbFb2LJmXXFrWBG4NGaRtMQ3myKPKbwrD1BKqQn74oCoNMBVrfDEr5M9YxCsrkw=="],
 
+    "stringify-entities": ["stringify-entities@4.0.4", "", { "dependencies": { "character-entities-html4": "^2.0.0", "character-entities-legacy": "^3.0.0" } }, "sha512-IwfBptatlO+QCJUo19AqvrPNqlVMpW9YEL2LIVY+Rpv2qsjCGxaDLNRgeGsQWJhfItebuJhsGSLjaBbNSQ+ieg=="],
+
     "strip-ansi": ["strip-ansi@7.1.0", "", { "dependencies": { "ansi-regex": "^6.0.1" } }, "sha512-iq6eVVI64nQQTRYq2KtEg2d2uU7LElhTJwsH4YzIHZshxlgZms/wIc4VoDQTlG/IvVIrBKG06CrZnp0qv7hkcQ=="],
 
     "strip-final-newline": ["strip-final-newline@3.0.0", "", {}, "sha512-dOESqjYr96iWYylGObzd39EuNTa5VJxyvVAEm5Jnh7KGo75V43Hk1odPQkNDyXNmUR6k+gEiDVXnjB8HJ3crXw=="],
 
+    "style-to-js": ["style-to-js@1.1.21", "", { "dependencies": { "style-to-object": "1.0.14" } }, "sha512-RjQetxJrrUJLQPHbLku6U/ocGtzyjbJMP9lCNK7Ag0CNh690nSH8woqWH9u16nMjYBAok+i7JO1NP2pOy8IsPQ=="],
+
+    "style-to-object": ["style-to-object@1.0.14", "", { "dependencies": { "inline-style-parser": "0.2.7" } }, "sha512-LIN7rULI0jBscWQYaSswptyderlarFkjQ+t79nzty8tcIAceVomEVlLzH5VP4Cmsv6MtKhs7qaAiwlcp+Mgaxw=="],
+
     "supports-color": ["supports-color@5.5.0", "", { "dependencies": { "has-flag": "^3.0.0" } }, "sha512-QjVjwdXIt408MIiAqCX4oUKsgU2EqAGzs2Ppkm4aQYbjm+ZEWEcW4SfFNTr4uMNZma0ey4f5lgLrkB0aX0QMow=="],
 
     "tar": ["tar@7.5.2", "", { "dependencies": { "@isaacs/fs-minipass": "^4.0.0", "chownr": "^3.0.0", "minipass": "^7.1.2", "minizlib": "^3.1.0", "yallist": "^5.0.0" } }, "sha512-7NyxrTE4Anh8km8iEy7o0QYPs+0JKBTj5ZaqHg6B39erLg0qYXN3BijtShwbsNSvQ+LN75+KV+C4QR/f6Gwnpg=="],
@@ -481,30 +636,52 @@
 
     "toad-cache": ["toad-cache@3.7.0", "", {}, "sha512-/m8M+2BJUpoJdgAHoG+baCwBT+tf2VraSfkBgl0Y00qIWt41DJ8R5B8nsEw0I58YwF5IZH6z24/2TobDKnqSWw=="],
 
+    "trim-lines": ["trim-lines@3.0.1", "", {}, "sha512-kRj8B+YHZCc9kQYdWfJB2/oUl9rA99qbowYYBtr4ui4mZyAQ2JpvVBd/6U2YloATfqBhBTSMhTpgBHtU0Mf3Rg=="],
+
+    "trough": ["trough@2.2.0", "", {}, "sha512-tmMpK00BjZiUyVyvrBK7knerNgmgvcV/KLVyuma/SC+TQN167GrMRciANTz09+k3zW8L8t60jWO1GpfkZdjTaw=="],
+
     "undici-types": ["undici-types@5.26.5", "", {}, "sha512-JlCMO+ehdEIKqlFxk6IfVoAUVmgz7cU7zD/h9XZ0qzeosSHmUJVOzSQvvYSYWXkFXC+IfLKSIffhv0sVZup6pA=="],
 
+    "unified": ["unified@11.0.5", "", { "dependencies": { "@types/unist": "^3.0.0", "bail": "^2.0.0", "devlop": "^1.0.0", "extend": "^3.0.0", "is-plain-obj": "^4.0.0", "trough": "^2.0.0", "vfile": "^6.0.0" } }, "sha512-xKvGhPWw3k84Qjh8bI3ZeJjqnyadK+GEFtazSfZv/rKeTkTjOJho6mFqh2SM96iIcZokxiOpg78GazTSg8+KHA=="],
+
+    "unist-util-is": ["unist-util-is@6.0.1", "", { "dependencies": { "@types/unist": "^3.0.0" } }, "sha512-LsiILbtBETkDz8I9p1dQ0uyRUWuaQzd/cuEeS1hoRSyW5E5XGmTzlwY1OrNzzakGowI9Dr/I8HVaw4hTtnxy8g=="],
+
+    "unist-util-position": ["unist-util-position@5.0.0", "", { "dependencies": { "@types/unist": "^3.0.0" } }, "sha512-fucsC7HjXvkB5R3kTCO7kUjRdrS0BJt3M/FPxmHMBOm8JQi2BsHAHFsy27E0EolP8rp0NzXsJ+jNPyDWvOJZPA=="],
+
+    "unist-util-stringify-position": ["unist-util-stringify-position@4.0.0", "", { "dependencies": { "@types/unist": "^3.0.0" } }, "sha512-0ASV06AAoKCDkS2+xw5RXJywruurpbC4JZSm7nr7MOt1ojAzvyyaO+UxZf18j8FCF6kmzCZKcAgN/yu2gm2XgQ=="],
+
+    "unist-util-visit": ["unist-util-visit@5.1.0", "", { "dependencies": { "@types/unist": "^3.0.0", "unist-util-is": "^6.0.0", "unist-util-visit-parents": "^6.0.0" } }, "sha512-m+vIdyeCOpdr/QeQCu2EzxX/ohgS8KbnPDgFni4dQsfSCtpz8UqDyY5GjRru8PDKuYn7Fq19j1CQ+nJSsGKOzg=="],
+
+    "unist-util-visit-parents": ["unist-util-visit-parents@6.0.2", "", { "dependencies": { "@types/unist": "^3.0.0", "unist-util-is": "^6.0.0" } }, "sha512-goh1s1TBrqSqukSc8wrjwWhL0hiJxgA8m4kFxGlQ+8FYQ3C/m11FcTs4YYem7V664AhHVvgoQLk890Ssdsr2IQ=="],
+
     "universalify": ["universalify@2.0.1", "", {}, "sha512-gptHNQghINnc/vTGIk0SOFGFNXw7JVrlRUtConJRlvaw6DuX0wO5Jeko9sWrMBhh+PsYAZ7oXAiOnf/UKogyiw=="],
 
     "update-browserslist-db": ["update-browserslist-db@1.0.10", "", { "dependencies": { "escalade": "^3.1.1", "picocolors": "^1.0.0" }, "peerDependencies": { "browserslist": ">= 4.21.0" }, "bin": { "browserslist-lint": "cli.js" } }, "sha512-OztqDenkfFkbSG+tRxBeAnCVPckDBcvibKd35yDONx6OU8N7sqgwc7rCbkJ/WcYtVRZ4ba68d6byhC21GFh7sQ=="],
 
+    "vfile": ["vfile@6.0.3", "", { "dependencies": { "@types/unist": "^3.0.0", "vfile-message": "^4.0.0" } }, "sha512-KzIbH/9tXat2u30jf+smMwFCsno4wHVdNmzFyL+T/L3UGqqk6JKfVqOFOZEpZSHADH1k40ab6NUIXZq422ov3Q=="],
+
+    "vfile-message": ["vfile-message@4.0.3", "", { "dependencies": { "@types/unist": "^3.0.0", "unist-util-stringify-position": "^4.0.0" } }, "sha512-QTHzsGd1EhbZs4AsQ20JX1rC3cOlt/IWJruk893DfLRr57lcnOeMaWG4K0JrRta4mIJZKth2Au3mM3u03/JWKw=="],
+
     "web-streams-polyfill": ["web-streams-polyfill@3.3.2", "", {}, "sha512-3pRGuxRF5gpuZc0W+EpwQRmCD7gRqcDOMt688KmdlDAgAyaB1XlN0zq2njfDNm44XVdIouE7pZ6GzbdyH47uIQ=="],
 
     "webpod": ["webpod@0.0.2", "", { "bin": { "webpod": "dist/index.js" } }, "sha512-cSwwQIeg8v4i3p4ajHhwgR7N6VyxAf+KYSSsY6Pd3aETE+xEU4vbitz7qQkB0I321xnhDdgtxuiSfk5r/FVtjg=="],
 
     "which": ["which@3.0.1", "", { "dependencies": { "isexe": "^2.0.0" }, "bin": { "node-which": "bin/which.js" } }, "sha512-XA1b62dzQzLfaEOSQFTCOd5KFf/1VSzZo7/7TUjnya6u0vGGKzU96UQBZTAThCb2j4/xjBAyii1OhRLJEivHvg=="],
 
+    "wrap-ansi": ["wrap-ansi@9.0.2", "https://artifactory.infra.ant.dev:443/artifactory/api/npm/npm-all/wrap-ansi/-/wrap-ansi-9.0.2.tgz", { "dependencies": { "ansi-styles": "^6.2.1", "string-width": "^7.0.0", "strip-ansi": "^7.1.0" } }, "sha512-42AtmgqjV+X1VpdOfyTGOYRi0/zsoLqtXQckTmqTeybT+BDIbM/Guxo7x3pE2vtpr1ok6xRqM9OpBe+Jyoqyww=="],
+
     "yallist": ["yallist@5.0.0", "", {}, "sha512-YgvUTfwqyc7UXVMrB+SImsVYSmTS8X/tSrtdNZMImM+n7+QTriRXyXim0mBrTXNeqzVF0KWGgHPeiyViFFrNDw=="],
 
     "yaml": ["yaml@2.3.4", "", {}, "sha512-8aAvwVUSHpfEqTQ4w/KMlf3HcRdt50E5ODIQJBw1fQ5RL34xabzxtUlzTXVqc4rkZsPbvrXKWnABCD7kWSmocA=="],
 
+    "zwitch": ["zwitch@2.0.4", "", {}, "sha512-bXE4cR/kVZhKZX/RjPEflHaKVhUVl85noU3v6b8apfQEc1x4A+zBxjZ4lN8LqGd6WZ3dl98pY4o717VFmoPp+A=="],
+
     "zx": ["zx@7.2.3", "", { "dependencies": { "@types/fs-extra": "^11.0.1", "@types/minimist": "^1.2.2", "@types/node": "^18.16.3", "@types/ps-tree": "^1.1.2", "@types/which": "^3.0.0", "chalk": "^5.2.0", "fs-extra": "^11.1.1", "fx": "*", "globby": "^13.1.4", "minimist": "^1.2.8", "node-fetch": "3.3.1", "ps-tree": "^1.2.0", "webpod": "^0", "which": "^3.0.0", "yaml": "^2.2.2" }, "bin": { "zx": "build/cli.js" } }, "sha512-QODu38nLlYXg/B/Gw7ZKiZrvPkEsjPN3LQ5JFXM7h0JvwhEdPNNl+4Ao1y4+o3CLNiDUNcwzQYZ4/Ko7kKzCMA=="],
 
     "@babel/generator/@jridgewell/gen-mapping": ["@jridgewell/gen-mapping@0.3.2", "", { "dependencies": { "@jridgewell/set-array": "^1.0.1", "@jridgewell/sourcemap-codec": "^1.4.10", "@jridgewell/trace-mapping": "^0.3.9" } }, "sha512-mh65xKQAzI6iBcFzwv28KVWSmCkdRBWoOh+bYQGW3+6OZvbbN3TqMGo5hqYxQniRcH9F2VZIoJCm4pa3BPDK/A=="],
 
     "@babel/highlight/chalk": ["chalk@2.4.2", "", { "dependencies": { "ansi-styles": "^3.2.1", "escape-string-regexp": "^1.0.5", "supports-color": "^5.3.0" } }, "sha512-Mti+f9lpJNcwF4tWV8/OrTTtF1gZi+f8FqlyAdouralcFWFQWF2+NgCHShjkCb+IFBLq9buZwE1xckQU4peSuQ=="],
 
-    "ansi-styles/color-convert": ["color-convert@1.9.3", "", { "dependencies": { "color-name": "1.1.3" } }, "sha512-QfAUtd+vFdAtFQcC8CCyYt1fYWxSqAiK2cSD6zDB8N3cpsEBAvRxp9zOGg6G/SHHJYAT88/az/IuDGALsNVbGg=="],
-
     "avvio/fastq": ["fastq@1.19.1", "", { "dependencies": { "reusify": "^1.0.4" } }, "sha512-GwLTyxkCXjXbxqIhTsMI2Nui8huMPtnxg7krajPJAjnEG/iiOS7i+zCtWGZR9G0NBKbXKh6X9m9UIsYX/N6vvQ=="],
 
     "cross-spawn/which": ["which@2.0.2", "", { "dependencies": { "isexe": "^2.0.0" }, "bin": { "node-which": "./bin/node-which" } }, "sha512-BLI3Tl1TW3Pvl70l3yq3Y64i+awpwXqsGBYWkkqMtnbXgrMD+yj7rhW0kuEDxzJaYXGjEW5ogapKNMEKNMjibA=="],
@@ -517,6 +694,12 @@
 
     "npm-run-path/path-key": ["path-key@4.0.0", "", {}, "sha512-haREypq7xkM7ErfgIyA0z+Bj4AGKlMSdlQE2jvJo6huWD1EdkKYV+G/T4nq0YEF2vgTT8kqMFKo1uHn950r4SQ=="],
 
-    "ansi-styles/color-convert/color-name": ["color-name@1.1.3", "", {}, "sha512-72fSenhMw2HZMTVHeCA9KCmpEIbzWiQsjN+BHcBbS9vr1mtt+vJjPdksIBNUmKAW8TFUDPJK5SUU3QhE9NEXDw=="],
+    "parse-entities/@types/unist": ["@types/unist@2.0.11", "", {}, "sha512-CmBKiL6NNo/OqgmMn95Fk9Whlp2mtvIv+KNpQKN2F4SjvrEesubTRWGYSg+BnWZOnlCaSTU1sMpsBOzgbYhnsA=="],
+
+    "@babel/highlight/chalk/ansi-styles": ["ansi-styles@3.2.1", "", { "dependencies": { "color-convert": "^1.9.0" } }, "sha512-VT0ZI6kZRdTh8YyJw3SMbYm/u+NqfsAxEpWO0Pf9sq8/e94WxxOpPKx9FR1FlyCtOVDNOQ+8ntlqFxiRc+r5qA=="],
+
+    "@babel/highlight/chalk/ansi-styles/color-convert": ["color-convert@1.9.3", "", { "dependencies": { "color-name": "1.1.3" } }, "sha512-QfAUtd+vFdAtFQcC8CCyYt1fYWxSqAiK2cSD6zDB8N3cpsEBAvRxp9zOGg6G/SHHJYAT88/az/IuDGALsNVbGg=="],
+
+    "@babel/highlight/chalk/ansi-styles/color-convert/color-name": ["color-name@1.1.3", "", {}, "sha512-72fSenhMw2HZMTVHeCA9KCmpEIbzWiQsjN+BHcBbS9vr1mtt+vJjPdksIBNUmKAW8TFUDPJK5SUU3QhE9NEXDw=="],
   }
 }

bench/json5/bun.lock

@@ -0,0 +1,15 @@
+{
+  "lockfileVersion": 1,
+  "configVersion": 1,
+  "workspaces": {
+    "": {
+      "name": "json5-benchmark",
+      "dependencies": {
+        "json5": "^2.2.3",
+      },
+    },
+  },
+  "packages": {
+    "json5": ["json5@2.2.3", "", { "bin": { "json5": "lib/cli.js" } }, "sha512-XmOWe7eyHYH14cLdVPoyg+GOH3rYX++KpzrylJwSW98t3Nk+U8XOl8FWKOgwtzdb8lXGf6zYwDUzeHMWfxasyg=="],
+  }
+}

bench/json5/json5.mjs

@@ -0,0 +1,88 @@
+import JSON5 from "json5";
+import { bench, group, run } from "../runner.mjs";
+
+const isBun = typeof Bun !== "undefined" && Bun.JSON5;
+
+function sizeLabel(n) {
+  if (n >= 1024 * 1024) return `${(n / 1024 / 1024).toFixed(1)}MB`;
+  if (n >= 1024) return `${(n / 1024).toFixed(0)}KB`;
+  return `${n}B`;
+}
+
+// -- parse inputs --
+
+const smallJson5 = `{
+  // User profile
+  name: "John Doe",
+  age: 30,
+  email: 'john@example.com',
+  active: true,
+}`;
+
+function generateLargeJson5(count) {
+  const lines = ["{\n  // Auto-generated dataset\n  items: [\n"];
+  for (let i = 0; i < count; i++) {
+    lines.push(`    {
+      id: ${i},
+      name: 'item_${i}',
+      value: ${(Math.random() * 1000).toFixed(2)},
+      hex: 0x${i.toString(16).toUpperCase()},
+      active: ${i % 2 === 0},
+      tags: ['tag_${i % 10}', 'category_${i % 5}',],
+      // entry ${i}
+    },\n`);
+  }
+  lines.push("  ],\n  total: " + count + ",\n  status: 'complete',\n}\n");
+  return lines.join("");
+}
+
+const largeJson5 = generateLargeJson5(6500);
+
+// -- stringify inputs --
+
+const smallObject = {
+  name: "John Doe",
+  age: 30,
+  email: "john@example.com",
+  active: true,
+};
+
+const largeObject = {
+  items: Array.from({ length: 10000 }, (_, i) => ({
+    id: i,
+    name: `item_${i}`,
+    value: +(Math.random() * 1000).toFixed(2),
+    active: i % 2 === 0,
+    tags: [`tag_${i % 10}`, `category_${i % 5}`],
+  })),
+  total: 10000,
+  status: "complete",
+};
+
+const stringify = isBun ? Bun.JSON5.stringify : JSON5.stringify;
+
+// -- parse benchmarks --
+
+group(`parse small (${sizeLabel(smallJson5.length)})`, () => {
+  if (isBun) bench("Bun.JSON5.parse", () => Bun.JSON5.parse(smallJson5));
+  bench("json5.parse", () => JSON5.parse(smallJson5));
+});
+
+group(`parse large (${sizeLabel(largeJson5.length)})`, () => {
+  if (isBun) bench("Bun.JSON5.parse", () => Bun.JSON5.parse(largeJson5));
+  bench("json5.parse", () => JSON5.parse(largeJson5));
+});
+
+// -- stringify benchmarks --
+
+group(`stringify small (${sizeLabel(stringify(smallObject).length)})`, () => {
+  if (isBun) bench("Bun.JSON5.stringify", () => Bun.JSON5.stringify(smallObject));
+  bench("json5.stringify", () => JSON5.stringify(smallObject));
+});
+
+group(`stringify large (${sizeLabel(stringify(largeObject).length)})`, () => {
+  if (isBun) bench("Bun.JSON5.stringify", () => Bun.JSON5.stringify(largeObject));
+  bench("json5.stringify", () => JSON5.stringify(largeObject));
+});
+
+await run();

bench/json5/package.json

@@ -0,0 +1,7 @@
+{
+  "name": "json5-benchmark",
+  "version": "1.0.0",
+  "dependencies": {
+    "json5": "^2.2.3"
+  }
+}

bench/package.json

@@ -14,13 +14,18 @@
     "fast-glob": "3.3.1",
     "fastify": "^5.0.0",
     "fdir": "^6.1.0",
-    "mitata": "^1.0.25",
-    "react": "^18.3.1",
-    "react-dom": "^18.3.1",
+    "marked": "^17.0.1",
+    "mitata": "1.0.20",
+    "react": "^19",
+    "react-dom": "^19",
+    "react-markdown": "^9.0.3",
+    "remark": "^15.0.1",
+    "remark-html": "^16.0.1",
     "string-width": "7.1.0",
     "strip-ansi": "^7.1.0",
     "tar": "^7.4.3",
     "tinycolor2": "^1.6.0",
+    "wrap-ansi": "^9.0.0",
     "zx": "^7.2.3"
   },
   "scripts": {

bench/runner.mjs

@@ -14,3 +14,4 @@ export function run(opts = {}) {
 
 export const bench = Mitata.bench;
 export const group = Mitata.group;
+export const summary = Mitata.summary;

bench/snippets/buffer-from-array.mjs

@@ -0,0 +1,38 @@
+// @runtime bun,node
+import { Buffer } from "node:buffer";
+import { bench, group, run } from "../runner.mjs";
+
+// Small arrays (common case)
+const int32Array8 = [1, 2, 3, 4, 5, 6, 7, 8];
+const doubleArray8 = [1.5, 2.5, 3.5, 4.5, 5.5, 6.5, 7.5, 8.5];
+
+// Medium arrays
+const int32Array64 = Array.from({ length: 64 }, (_, i) => i % 256);
+const doubleArray64 = Array.from({ length: 64 }, (_, i) => i + 0.5);
+
+// Large arrays
+const int32Array1024 = Array.from({ length: 1024 }, (_, i) => i % 256);
+
+// Array-like objects (fallback path)
+const arrayLike8 = { 0: 1, 1: 2, 2: 3, 3: 4, 4: 5, 5: 6, 6: 7, 7: 8, length: 8 };
+
+// Empty array
+const emptyArray = [];
+
+group("Buffer.from(array) - Int32 arrays", () => {
+  bench("Buffer.from(int32[8])", () => Buffer.from(int32Array8));
+  bench("Buffer.from(int32[64])", () => Buffer.from(int32Array64));
+  bench("Buffer.from(int32[1024])", () => Buffer.from(int32Array1024));
+});
+
+group("Buffer.from(array) - Double arrays", () => {
+  bench("Buffer.from(double[8])", () => Buffer.from(doubleArray8));
+  bench("Buffer.from(double[64])", () => Buffer.from(doubleArray64));
+});
+
+group("Buffer.from(array) - Edge cases", () => {
+  bench("Buffer.from([])", () => Buffer.from(emptyArray));
+  bench("Buffer.from(arrayLike[8])", () => Buffer.from(arrayLike8));
+});
+
+await run();

bench/snippets/markdown-react.mjs

@@ -0,0 +1,92 @@
+import React from "react";
+import { renderToString } from "react-dom/server";
+import ReactMarkdown from "react-markdown";
+
+const markdown = `# Project README
+
+## Introduction
+
+This is a medium-sized markdown document that includes **bold text**, *italic text*,
+and \`inline code\`. It also has [links](https://example.com) and various formatting.
+
+## Features
+
+- Feature one with **bold**
+- Feature two with *emphasis*
+- Feature three with \`code\`
+- Feature four with [a link](https://example.com)
+
+## Code Example
+
+\`\`\`javascript
+function hello() {
+  console.log("Hello, world!");
+  return 42;
+}
+
+const result = hello();
+\`\`\`
+
+## Table
+
+| Name | Value | Description |
+|------|-------|-------------|
+| foo  | 1     | First item  |
+| bar  | 2     | Second item |
+| baz  | 3     | Third item  |
+
+## Blockquote
+
+> This is a blockquote with **bold** and *italic* text.
+> It spans multiple lines and contains a [link](https://example.com).
+
+---
+
+### Nested Lists
+
+1. First ordered item
+   - Nested unordered
+   - Another nested
+2. Second ordered item
+   1. Nested ordered
+   2. Another nested
+3. Third ordered item
+
+Some final paragraph with ~~strikethrough~~ text and more **formatting**.
+`;
+
+// Verify outputs are roughly the same
+const bunHtml = renderToString(Bun.markdown.react(markdown));
+const reactMarkdownHtml = renderToString(React.createElement(ReactMarkdown, { children: markdown }));
+
+console.log("=== Bun.markdown.react output ===");
+console.log(bunHtml.slice(0, 500));
+console.log(`... (${bunHtml.length} chars total)\n`);
+
+console.log("=== react-markdown output ===");
+console.log(reactMarkdownHtml.slice(0, 500));
+console.log(`... (${reactMarkdownHtml.length} chars total)\n`);
+
+const server = Bun.serve({
+  port: 0,
+  routes: {
+    "/bun-markdown": () => {
+      return new Response(renderToString(Bun.markdown.react(markdown)), {
+        headers: { "Content-Type": "text/html" },
+      });
+    },
+    "/react-markdown": () => {
+      return new Response(renderToString(React.createElement(ReactMarkdown, { children: markdown })), {
+        headers: { "Content-Type": "text/html" },
+      });
+    },
+  },
+});
+
+console.log(`Server listening on ${server.url}`);
+console.log(`  ${server.url}bun-markdown`);
+console.log(`  ${server.url}react-markdown`);
+console.log();
+console.log("Run:");
+console.log(`  oha -c 20 -z 5s ${server.url}bun-markdown`);
+console.log(`  oha -c 20 -z 5s ${server.url}react-markdown`);

bench/snippets/markdown.mjs

@@ -0,0 +1,159 @@
+import { marked } from "marked";
+import { remark } from "remark";
+import remarkHtml from "remark-html";
+import { bench, run, summary } from "../runner.mjs";
+
+const remarkProcessor = remark().use(remarkHtml);
+
+const small = `# Hello World
+
+This is a **bold** and *italic* paragraph with a [link](https://example.com).
+
+- Item 1
+- Item 2
+- Item 3
+`;
+
+const medium = `# Project README
+
+## Introduction
+
+This is a medium-sized markdown document that includes **bold text**, *italic text*,
+and \`inline code\`. It also has [links](https://example.com) and various formatting.
+
+## Features
+
+- Feature one with **bold**
+- Feature two with *emphasis*
+- Feature three with \`code\`
+- Feature four with [a link](https://example.com)
+
+## Code Example
+
+\`\`\`javascript
+function hello() {
+  console.log("Hello, world!");
+  return 42;
+}
+
+const result = hello();
+\`\`\`
+
+## Table
+
+| Name | Value | Description |
+|------|-------|-------------|
+| foo  | 1     | First item  |
+| bar  | 2     | Second item |
+| baz  | 3     | Third item  |
+
+## Blockquote
+
+> This is a blockquote with **bold** and *italic* text.
+> It spans multiple lines and contains a [link](https://example.com).
+
+---
+
+### Nested Lists
+
+1. First ordered item
+   - Nested unordered
+   - Another nested
+2. Second ordered item
+   1. Nested ordered
+   2. Another nested
+3. Third ordered item
+
+Some final paragraph with ~~strikethrough~~ text and more **formatting**.
+`;
+
+const large = medium.repeat(20);
+
+const renderCallbacks = {
+  heading: (children, { level }) => `<h${level}>${children}</h${level}>`,
+  paragraph: children => `<p>${children}</p>`,
+  strong: children => `<strong>${children}</strong>`,
+  emphasis: children => `<em>${children}</em>`,
+  codespan: children => `<code>${children}</code>`,
+  code: (children, { language }) =>
+    language
+      ? `<pre><code class="language-${language}">${children}</code></pre>`
+      : `<pre><code>${children}</code></pre>`,
+  link: (children, { href, title }) =>
+    title ? `<a href="${href}" title="${title}">${children}</a>` : `<a href="${href}">${children}</a>`,
+  image: (children, { src, title }) =>
+    title ? `<img src="${src}" alt="${children}" title="${title}" />` : `<img src="${src}" alt="${children}" />`,
+  list: (children, { ordered, start }) => (ordered ? `<ol start="${start}">${children}</ol>` : `<ul>${children}</ul>`),
+  listItem: children => `<li>${children}</li>`,
+  blockquote: children => `<blockquote>${children}</blockquote>`,
+  hr: () => `<hr />`,
+  strikethrough: children => `<del>${children}</del>`,
+  table: children => `<table>${children}</table>`,
+  thead: children => `<thead>${children}</thead>`,
+  tbody: children => `<tbody>${children}</tbody>`,
+  tr: children => `<tr>${children}</tr>`,
+  th: children => `<th>${children}</th>`,
+  td: children => `<td>${children}</td>`,
+};
+
+summary(() => {
+  if (typeof Bun !== "undefined" && Bun.markdown) {
+    bench(`small (${small.length} chars) - Bun.markdown.html`, () => {
+      return Bun.markdown.html(small);
+    });
+
+    bench(`small (${small.length} chars) - Bun.markdown.render`, () => {
+      return Bun.markdown.render(small, renderCallbacks);
+    });
+  }
+
+  bench(`small (${small.length} chars) - marked`, () => {
+    return marked(small);
+  });
+
+  bench(`small (${small.length} chars) - remark`, () => {
+    return remarkProcessor.processSync(small).toString();
+  });
+});
+
+summary(() => {
+  if (typeof Bun !== "undefined" && Bun.markdown) {
+    bench(`medium (${medium.length} chars) - Bun.markdown.html`, () => {
+      return Bun.markdown.html(medium);
+    });
+
+    bench(`medium (${medium.length} chars) - Bun.markdown.render`, () => {
+      return Bun.markdown.render(medium, renderCallbacks);
+    });
+  }
+
+  bench(`medium (${medium.length} chars) - marked`, () => {
+    return marked(medium);
+  });
+
+  bench(`medium (${medium.length} chars) - remark`, () => {
+    return remarkProcessor.processSync(medium).toString();
+  });
+});
+
+summary(() => {
+  if (typeof Bun !== "undefined" && Bun.markdown) {
+    bench(`large (${large.length} chars) - Bun.markdown.html`, () => {
+      return Bun.markdown.html(large);
+    });
+
+    bench(`large (${large.length} chars) - Bun.markdown.render`, () => {
+      return Bun.markdown.render(large, renderCallbacks);
+    });
+  }
+
+  bench(`large (${large.length} chars) - marked`, () => {
+    return marked(large);
+  });
+
+  bench(`large (${large.length} chars) - remark`, () => {
+    return remarkProcessor.processSync(large).toString();
+  });
+});
+
+await run();

bench/snippets/spread-set.mjs

@@ -0,0 +1,20 @@
+// Benchmark for [...set] optimization (WebKit#56539)
+// https://github.com/WebKit/WebKit/pull/56539
+import { bench, run } from "../runner.mjs";
+
+const intSet10 = new Set([1, 2, 3, 4, 5, 6, 7, 8, 9, 10]);
+const intSet100 = new Set(Array.from({ length: 100 }, (_, i) => i));
+const strSet10 = new Set(Array.from({ length: 10 }, (_, i) => `key-${i}`));
+const strSet100 = new Set(Array.from({ length: 100 }, (_, i) => `key-${i}`));
+
+const objSet10 = new Set(Array.from({ length: 10 }, (_, i) => ({ id: i })));
+const objSet100 = new Set(Array.from({ length: 100 }, (_, i) => ({ id: i })));
+
+bench("[...set] - integers (10)", () => [...intSet10]);
+bench("[...set] - integers (100)", () => [...intSet100]);
+bench("[...set] - strings (10)", () => [...strSet10]);
+bench("[...set] - strings (100)", () => [...strSet100]);
+bench("[...set] - objects (10)", () => [...objSet10]);
+bench("[...set] - objects (100)", () => [...objSet100]);
+
+await run();

bench/snippets/wrap-ansi.js

@@ -0,0 +1,103 @@
+import wrapAnsi from "wrap-ansi";
+import { bench, run, summary } from "../runner.mjs";
+
+// Test fixtures
+const shortText = "The quick brown fox jumped over the lazy dog.";
+const mediumText = "The quick brown fox jumped over the lazy dog and then ran away with the unicorn. ".repeat(10);
+const longText = "The quick brown fox jumped over the lazy dog and then ran away with the unicorn. ".repeat(100);
+
+// ANSI colored text
+const red = s => `\u001B[31m${s}\u001B[39m`;
+const green = s => `\u001B[32m${s}\u001B[39m`;
+const blue = s => `\u001B[34m${s}\u001B[39m`;
+
+const coloredShort = `The quick ${red("brown fox")} jumped over the ${green("lazy dog")}.`;
+const coloredMedium =
+  `The quick ${red("brown fox jumped over")} the ${green("lazy dog and then ran away")} with the ${blue("unicorn")}. `.repeat(
+    10,
+  );
+const coloredLong =
+  `The quick ${red("brown fox jumped over")} the ${green("lazy dog and then ran away")} with the ${blue("unicorn")}. `.repeat(
+    100,
+  );
+
+// Full-width characters (Japanese)
+const japaneseText = "日本語のテキストを折り返すテストです。全角文字は幅2としてカウントされます。".repeat(5);
+
+// Emoji text
+const emojiText = "Hello 👋 World 🌍! Let's test 🧪 some emoji 😀 wrapping 📦!".repeat(5);
+
+// Hyperlink text
+const hyperlinkText = "Check out \u001B]8;;https://bun.sh\u0007Bun\u001B]8;;\u0007, it's fast! ".repeat(10);
+
+// Options
+const hardOpts = { hard: true };
+const noTrimOpts = { trim: false };
+
+// Basic text benchmarks
+summary(() => {
+  bench("Short text (45 chars) - npm", () => wrapAnsi(shortText, 20));
+  bench("Short text (45 chars) - Bun", () => Bun.wrapAnsi(shortText, 20));
+});
+
+summary(() => {
+  bench("Medium text (810 chars) - npm", () => wrapAnsi(mediumText, 40));
+  bench("Medium text (810 chars) - Bun", () => Bun.wrapAnsi(mediumText, 40));
+});
+
+summary(() => {
+  bench("Long text (8100 chars) - npm", () => wrapAnsi(longText, 80));
+  bench("Long text (8100 chars) - Bun", () => Bun.wrapAnsi(longText, 80));
+});
+
+// ANSI colored text benchmarks
+summary(() => {
+  bench("Colored short - npm", () => wrapAnsi(coloredShort, 20));
+  bench("Colored short - Bun", () => Bun.wrapAnsi(coloredShort, 20));
+});
+
+summary(() => {
+  bench("Colored medium - npm", () => wrapAnsi(coloredMedium, 40));
+  bench("Colored medium - Bun", () => Bun.wrapAnsi(coloredMedium, 40));
+});
+
+summary(() => {
+  bench("Colored long - npm", () => wrapAnsi(coloredLong, 80));
+  bench("Colored long - Bun", () => Bun.wrapAnsi(coloredLong, 80));
+});
+
+// Hard wrap benchmarks
+summary(() => {
+  bench("Hard wrap long - npm", () => wrapAnsi(longText, 80, hardOpts));
+  bench("Hard wrap long - Bun", () => Bun.wrapAnsi(longText, 80, hardOpts));
+});
+
+summary(() => {
+  bench("Hard wrap colored - npm", () => wrapAnsi(coloredLong, 80, hardOpts));
+  bench("Hard wrap colored - Bun", () => Bun.wrapAnsi(coloredLong, 80, hardOpts));
+});
+
+// Unicode benchmarks
+summary(() => {
+  bench("Japanese (full-width) - npm", () => wrapAnsi(japaneseText, 40));
+  bench("Japanese (full-width) - Bun", () => Bun.wrapAnsi(japaneseText, 40));
+});
+
+summary(() => {
+  bench("Emoji text - npm", () => wrapAnsi(emojiText, 30));
+  bench("Emoji text - Bun", () => Bun.wrapAnsi(emojiText, 30));
+});
+
+// Hyperlink benchmarks
+summary(() => {
+  bench("Hyperlink (OSC 8) - npm", () => wrapAnsi(hyperlinkText, 40));
+  bench("Hyperlink (OSC 8) - Bun", () => Bun.wrapAnsi(hyperlinkText, 40));
+});
+
+// No trim option
+summary(() => {
+  bench("No trim long - npm", () => wrapAnsi(longText, 80, noTrimOpts));
+  bench("No trim long - Bun", () => Bun.wrapAnsi(longText, 80, noTrimOpts));
+});
+
+await run();

build.zig

@@ -34,6 +34,7 @@ const BunBuildOptions = struct {
     enable_asan: bool,
     enable_fuzzilli: bool,
     enable_valgrind: bool,
+    enable_tinycc: bool,
     use_mimalloc: bool,
     tracy_callstack_depth: u16,
     reported_nodejs_version: Version,
@@ -84,6 +85,7 @@ const BunBuildOptions = struct {
         opts.addOption(bool, "enable_asan", this.enable_asan);
         opts.addOption(bool, "enable_fuzzilli", this.enable_fuzzilli);
         opts.addOption(bool, "enable_valgrind", this.enable_valgrind);
+        opts.addOption(bool, "enable_tinycc", this.enable_tinycc);
         opts.addOption(bool, "use_mimalloc", this.use_mimalloc);
         opts.addOption([]const u8, "reported_nodejs_version", b.fmt("{f}", .{this.reported_nodejs_version}));
         opts.addOption(bool, "zig_self_hosted_backend", this.no_llvm);
@@ -259,6 +261,7 @@ pub fn build(b: *Build) !void {
         .enable_asan = b.option(bool, "enable_asan", "Enable asan") orelse false,
         .enable_fuzzilli = b.option(bool, "enable_fuzzilli", "Enable fuzzilli instrumentation") orelse false,
         .enable_valgrind = b.option(bool, "enable_valgrind", "Enable valgrind") orelse false,
+        .enable_tinycc = b.option(bool, "enable_tinycc", "Enable TinyCC for FFI JIT compilation") orelse true,
         .use_mimalloc = b.option(bool, "use_mimalloc", "Use mimalloc as default allocator") orelse false,
         .llvm_codegen_threads = b.option(u32, "llvm_codegen_threads", "Number of threads to use for LLVM codegen") orelse 1,
     };
@@ -342,6 +345,7 @@ pub fn build(b: *Build) !void {
         const step = b.step("check-debug", "Check for semantic analysis errors on some platforms");
         addMultiCheck(b, step, build_options, &.{
             .{ .os = .windows, .arch = .x86_64 },
+            .{ .os = .windows, .arch = .aarch64 },
             .{ .os = .mac, .arch = .aarch64 },
             .{ .os = .linux, .arch = .x86_64 },
         }, &.{.Debug});
@@ -352,6 +356,7 @@ pub fn build(b: *Build) !void {
         const step = b.step("check-all", "Check for semantic analysis errors on all supported platforms");
         addMultiCheck(b, step, build_options, &.{
             .{ .os = .windows, .arch = .x86_64 },
+            .{ .os = .windows, .arch = .aarch64 },
             .{ .os = .mac, .arch = .x86_64 },
             .{ .os = .mac, .arch = .aarch64 },
             .{ .os = .linux, .arch = .x86_64 },
@@ -366,6 +371,7 @@ pub fn build(b: *Build) !void {
         const step = b.step("check-all-debug", "Check for semantic analysis errors on all supported platforms in debug mode");
         addMultiCheck(b, step, build_options, &.{
             .{ .os = .windows, .arch = .x86_64 },
+            .{ .os = .windows, .arch = .aarch64 },
             .{ .os = .mac, .arch = .x86_64 },
             .{ .os = .mac, .arch = .aarch64 },
             .{ .os = .linux, .arch = .x86_64 },
@@ -380,12 +386,14 @@ pub fn build(b: *Build) !void {
         const step = b.step("check-windows", "Check for semantic analysis errors on Windows");
         addMultiCheck(b, step, build_options, &.{
             .{ .os = .windows, .arch = .x86_64 },
+            .{ .os = .windows, .arch = .aarch64 },
         }, &.{ .Debug, .ReleaseFast });
     }
     {
         const step = b.step("check-windows-debug", "Check for semantic analysis errors on Windows");
         addMultiCheck(b, step, build_options, &.{
             .{ .os = .windows, .arch = .x86_64 },
+            .{ .os = .windows, .arch = .aarch64 },
         }, &.{.Debug});
     }
     {
@@ -422,6 +430,7 @@ pub fn build(b: *Build) !void {
         const step = b.step("translate-c", "Copy generated translated-c-headers.zig to zig-out");
         for ([_]TargetDescription{
             .{ .os = .windows, .arch = .x86_64 },
+            .{ .os = .windows, .arch = .aarch64 },
             .{ .os = .mac, .arch = .x86_64 },
             .{ .os = .mac, .arch = .aarch64 },
             .{ .os = .linux, .arch = .x86_64 },
@@ -450,6 +459,146 @@ pub fn build(b: *Build) !void {
         // const run = b.addRunArtifact(exe);
         // step.dependOn(&run.step);
     }
+
+    // zig build generate-grapheme-tables
+    // Regenerates src/string/immutable/grapheme_tables.zig from the vendored uucode.
+    // Run this when updating src/deps/uucode. Normal builds use the committed file.
+    {
+        const step = b.step("generate-grapheme-tables", "Regenerate grapheme property tables from vendored uucode");
+
+        // --- Phase 1: Build uucode tables (separate module graph, no tables dependency) ---
+        const bt_config_mod = b.createModule(.{
+            .root_source_file = b.path("src/deps/uucode/src/config.zig"),
+            .target = b.graph.host,
+        });
+        const bt_types_mod = b.createModule(.{
+            .root_source_file = b.path("src/deps/uucode/src/types.zig"),
+            .target = b.graph.host,
+        });
+        bt_types_mod.addImport("config.zig", bt_config_mod);
+        bt_config_mod.addImport("types.zig", bt_types_mod);
+
+        const bt_config_x_mod = b.createModule(.{
+            .root_source_file = b.path("src/deps/uucode/src/x/config.x.zig"),
+            .target = b.graph.host,
+        });
+        const bt_types_x_mod = b.createModule(.{
+            .root_source_file = b.path("src/deps/uucode/src/x/types.x.zig"),
+            .target = b.graph.host,
+        });
+        bt_types_x_mod.addImport("config.x.zig", bt_config_x_mod);
+        bt_config_x_mod.addImport("types.x.zig", bt_types_x_mod);
+        bt_config_x_mod.addImport("types.zig", bt_types_mod);
+        bt_config_x_mod.addImport("config.zig", bt_config_mod);
+
+        const bt_build_config_mod = b.createModule(.{
+            .root_source_file = b.path("src/unicode/uucode/uucode_config.zig"),
+            .target = b.graph.host,
+        });
+        bt_build_config_mod.addImport("types.zig", bt_types_mod);
+        bt_build_config_mod.addImport("config.zig", bt_config_mod);
+        bt_build_config_mod.addImport("types.x.zig", bt_types_x_mod);
+        bt_build_config_mod.addImport("config.x.zig", bt_config_x_mod);
+
+        const build_tables_mod = b.createModule(.{
+            .root_source_file = b.path("src/deps/uucode/src/build/tables.zig"),
+            .target = b.graph.host,
+            .optimize = .Debug,
+        });
+        build_tables_mod.addImport("config.zig", bt_config_mod);
+        build_tables_mod.addImport("build_config", bt_build_config_mod);
+        build_tables_mod.addImport("types.zig", bt_types_mod);
+
+        const build_tables_exe = b.addExecutable(.{
+            .name = "uucode_build_tables",
+            .root_module = build_tables_mod,
+            .use_llvm = true,
+        });
+        const run_build_tables = b.addRunArtifact(build_tables_exe);
+        run_build_tables.setCwd(b.path("src/deps/uucode"));
+        const tables_path = run_build_tables.addOutputFileArg("tables.zig");
+
+        // --- Phase 2: Build grapheme-gen with full uucode (separate module graph) ---
+        const rt_config_mod = b.createModule(.{
+            .root_source_file = b.path("src/deps/uucode/src/config.zig"),
+            .target = b.graph.host,
+        });
+        const rt_types_mod = b.createModule(.{
+            .root_source_file = b.path("src/deps/uucode/src/types.zig"),
+            .target = b.graph.host,
+        });
+        rt_types_mod.addImport("config.zig", rt_config_mod);
+        rt_config_mod.addImport("types.zig", rt_types_mod);
+
+        const rt_config_x_mod = b.createModule(.{
+            .root_source_file = b.path("src/deps/uucode/src/x/config.x.zig"),
+            .target = b.graph.host,
+        });
+        const rt_types_x_mod = b.createModule(.{
+            .root_source_file = b.path("src/deps/uucode/src/x/types.x.zig"),
+            .target = b.graph.host,
+        });
+        rt_types_x_mod.addImport("config.x.zig", rt_config_x_mod);
+        rt_config_x_mod.addImport("types.x.zig", rt_types_x_mod);
+        rt_config_x_mod.addImport("types.zig", rt_types_mod);
+        rt_config_x_mod.addImport("config.zig", rt_config_mod);
+
+        const rt_build_config_mod = b.createModule(.{
+            .root_source_file = b.path("src/unicode/uucode/uucode_config.zig"),
+            .target = b.graph.host,
+        });
+        rt_build_config_mod.addImport("types.zig", rt_types_mod);
+        rt_build_config_mod.addImport("config.zig", rt_config_mod);
+        rt_build_config_mod.addImport("types.x.zig", rt_types_x_mod);
+        rt_build_config_mod.addImport("config.x.zig", rt_config_x_mod);
+
+        const rt_tables_mod = b.createModule(.{
+            .root_source_file = tables_path,
+            .target = b.graph.host,
+        });
+        rt_tables_mod.addImport("types.zig", rt_types_mod);
+        rt_tables_mod.addImport("types.x.zig", rt_types_x_mod);
+        rt_tables_mod.addImport("config.zig", rt_config_mod);
+        rt_tables_mod.addImport("build_config", rt_build_config_mod);
+
+        const rt_get_mod = b.createModule(.{
+            .root_source_file = b.path("src/deps/uucode/src/get.zig"),
+            .target = b.graph.host,
+        });
+        rt_get_mod.addImport("types.zig", rt_types_mod);
+        rt_get_mod.addImport("tables", rt_tables_mod);
+        rt_types_mod.addImport("get.zig", rt_get_mod);
+
+        const uucode_mod = b.createModule(.{
+            .root_source_file = b.path("src/deps/uucode/src/root.zig"),
+            .target = b.graph.host,
+        });
+        uucode_mod.addImport("types.zig", rt_types_mod);
+        uucode_mod.addImport("config.zig", rt_config_mod);
+        uucode_mod.addImport("types.x.zig", rt_types_x_mod);
+        uucode_mod.addImport("tables", rt_tables_mod);
+        uucode_mod.addImport("get.zig", rt_get_mod);
+
+        // grapheme_gen executable
+        const gen_exe = b.addExecutable(.{
+            .name = "grapheme-gen",
+            .root_module = b.createModule(.{
+                .root_source_file = b.path("src/unicode/uucode/grapheme_gen.zig"),
+                .target = b.graph.host,
+                .optimize = .Debug,
+                .imports = &.{
+                    .{ .name = "uucode", .module = uucode_mod },
+                },
+            }),
+            .use_llvm = true,
+        });
+
+        const run_gen = b.addRunArtifact(gen_exe);
+        const gen_output = run_gen.captureStdOut();
+
+        const install = b.addInstallFile(gen_output, "../src/string/immutable/grapheme_tables.zig");
+        step.dependOn(&install.step);
+    }
 }
 
 const TargetDescription = struct {
@@ -493,6 +642,7 @@ fn addMultiCheck(
                 .no_llvm = root_build_options.no_llvm,
                 .enable_asan = root_build_options.enable_asan,
                 .enable_valgrind = root_build_options.enable_valgrind,
+                .enable_tinycc = root_build_options.enable_tinycc,
                 .enable_fuzzilli = root_build_options.enable_fuzzilli,
                 .use_mimalloc = root_build_options.use_mimalloc,
                 .override_no_export_cpp_apis = root_build_options.override_no_export_cpp_apis,

cmake/CompilerFlags.cmake

@@ -21,6 +21,10 @@ endforeach()
 if(CMAKE_SYSTEM_PROCESSOR MATCHES "arm|ARM|arm64|ARM64|aarch64|AARCH64")
   if(APPLE)
     register_compiler_flags(-mcpu=apple-m1)
+  elseif(WIN32)
+    # Windows ARM64: use /clang: prefix for clang-cl, skip for MSVC cl.exe subprojects
+    # These flags are only understood by clang-cl, not MSVC cl.exe
+    register_compiler_flags(/clang:-march=armv8-a+crc /clang:-mtune=ampere1)
   else()
     register_compiler_flags(-march=armv8-a+crc -mtune=ampere1)
   endif()
@@ -242,10 +246,17 @@ if(UNIX)
   )
 endif()
 
-register_compiler_flags(
-  DESCRIPTION "Set C/C++ error limit"
-  -ferror-limit=${ERROR_LIMIT}
-)
+if(WIN32)
+  register_compiler_flags(
+    DESCRIPTION "Set C/C++ error limit"
+    /clang:-ferror-limit=${ERROR_LIMIT}
+  )
+else()
+  register_compiler_flags(
+    DESCRIPTION "Set C/C++ error limit"
+    -ferror-limit=${ERROR_LIMIT}
+  )
+endif()
 
 # --- LTO ---
 if(ENABLE_LTO)

cmake/Globals.cmake

@@ -106,9 +106,9 @@ else()
 endif()
 
 if(CMAKE_HOST_SYSTEM_PROCESSOR MATCHES "arm64|ARM64|aarch64|AARCH64")
-  set(HOST_OS "aarch64")
+  set(HOST_ARCH "aarch64")
 elseif(CMAKE_HOST_SYSTEM_PROCESSOR MATCHES "x86_64|X86_64|x64|X64|amd64|AMD64")
-  set(HOST_OS "x64")
+  set(HOST_ARCH "x64")
 else()
   unsupported(CMAKE_HOST_SYSTEM_PROCESSOR)
 endif()
@@ -433,6 +433,33 @@ function(register_command)
     list(APPEND CMD_EFFECTIVE_DEPENDS ${CMD_EXECUTABLE})
   endif()
 
+  # SKIP_CODEGEN: Skip commands that use BUN_EXECUTABLE if all outputs exist
+  # This is used for Windows ARM64 builds where x64 bun crashes under emulation
+  if(SKIP_CODEGEN AND CMD_EXECUTABLE STREQUAL "${BUN_EXECUTABLE}")
+    set(ALL_OUTPUTS_EXIST TRUE)
+    foreach(output ${CMD_OUTPUTS})
+      if(NOT EXISTS ${output})
+        set(ALL_OUTPUTS_EXIST FALSE)
+        break()
+      endif()
+    endforeach()
+    if(ALL_OUTPUTS_EXIST AND CMD_OUTPUTS)
+      message(STATUS "SKIP_CODEGEN: Skipping ${CMD_TARGET} (outputs exist)")
+      if(CMD_TARGET)
+        add_custom_target(${CMD_TARGET})
+      endif()
+      return()
+    elseif(NOT CMD_OUTPUTS)
+      message(STATUS "SKIP_CODEGEN: Skipping ${CMD_TARGET} (no outputs)")
+      if(CMD_TARGET)
+        add_custom_target(${CMD_TARGET})
+      endif()
+      return()
+    else()
+      message(FATAL_ERROR "SKIP_CODEGEN: Cannot skip ${CMD_TARGET} - missing outputs. Run codegen on x64 first.")
+    endif()
+  endif()
+
   foreach(target ${CMD_TARGETS})
     if(target MATCHES "/|\\\\")
       message(FATAL_ERROR "register_command: TARGETS contains \"${target}\", if it's a path add it to SOURCES instead")
@@ -650,6 +677,7 @@ function(register_bun_install)
       ${NPM_CWD}
     COMMAND
       ${BUN_EXECUTABLE}
+        ${BUN_FLAGS}
         install
         --frozen-lockfile
     SOURCES
@@ -757,7 +785,7 @@ function(register_cmake_command)
   set(MAKE_EFFECTIVE_ARGS -B${MAKE_BUILD_PATH} ${CMAKE_ARGS})
 
   set(setFlags GENERATOR BUILD_TYPE)
-  set(appendFlags C_FLAGS CXX_FLAGS LINKER_FLAGS)
+  set(appendFlags C_FLAGS CXX_FLAGS LINKER_FLAGS STATIC_LINKER_FLAGS EXE_LINKER_FLAGS SHARED_LINKER_FLAGS MODULE_LINKER_FLAGS)
   set(specialFlags POSITION_INDEPENDENT_CODE)
   set(flags ${setFlags} ${appendFlags} ${specialFlags})
 
@@ -803,6 +831,14 @@ function(register_cmake_command)
     list(APPEND MAKE_EFFECTIVE_ARGS "-DCMAKE_${flag}=${MAKE_${flag}}")
   endforeach()
 
+  # Workaround for CMake 4.1.0 bug: Force correct machine type for Windows ARM64
+  # Use toolchain file and set CMP0197 policy to prevent duplicate /machine: flags
+  if(WIN32 AND CMAKE_SYSTEM_PROCESSOR MATCHES "ARM64|aarch64|AARCH64")
+    list(APPEND MAKE_EFFECTIVE_ARGS "-DCMAKE_TOOLCHAIN_FILE=${CWD}/cmake/toolchains/windows-aarch64.cmake")
+    list(APPEND MAKE_EFFECTIVE_ARGS "-DCMAKE_POLICY_DEFAULT_CMP0197=NEW")
+    list(APPEND MAKE_EFFECTIVE_ARGS "-DCMAKE_PROJECT_INCLUDE=${CWD}/cmake/arm64-static-lib-fix.cmake")
+  endif()
+
   if(DEFINED FRESH)
     list(APPEND MAKE_EFFECTIVE_ARGS --fresh)
   endif()

cmake/Options.cmake

@@ -4,6 +4,7 @@ endif()
 
 optionx(BUN_LINK_ONLY BOOL "If only the linking step should be built" DEFAULT OFF)
 optionx(BUN_CPP_ONLY BOOL "If only the C++ part of Bun should be built" DEFAULT OFF)
+optionx(SKIP_CODEGEN BOOL "Skip JavaScript codegen (for Windows ARM64 debug)" DEFAULT OFF)
 
 optionx(BUILDKITE BOOL "If Buildkite is enabled" DEFAULT OFF)
 optionx(GITHUB_ACTIONS BOOL "If GitHub Actions is enabled" DEFAULT OFF)
@@ -49,7 +50,7 @@ else()
   message(FATAL_ERROR "Unsupported operating system: ${CMAKE_SYSTEM_NAME}")
 endif()
 
-if(CMAKE_SYSTEM_PROCESSOR MATCHES "aarch64|arm64|arm")
+if(CMAKE_SYSTEM_PROCESSOR MATCHES "aarch64|arm64|ARM64")
   setx(ARCH "aarch64")
 elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "amd64|x86_64|x64|AMD64")
   setx(ARCH "x64")
@@ -57,6 +58,18 @@ else()
   message(FATAL_ERROR "Unsupported architecture: ${CMAKE_SYSTEM_PROCESSOR}")
 endif()
 
+# CMake 4.0+ policy CMP0197 controls how MSVC machine type flags are handled
+# Setting to NEW prevents duplicate /machine: flags being added to linker commands
+if(WIN32 AND ARCH STREQUAL "aarch64")
+  set(CMAKE_POLICY_DEFAULT_CMP0197 NEW)
+  set(CMAKE_MSVC_CMP0197 NEW)
+  # Set linker flags for exe/shared linking
+  set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} /machine:ARM64")
+  set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} /machine:ARM64")
+  set(CMAKE_MODULE_LINKER_FLAGS "${CMAKE_MODULE_LINKER_FLAGS} /machine:ARM64")
+  set(CMAKE_STATIC_LINKER_FLAGS "${CMAKE_STATIC_LINKER_FLAGS} /machine:ARM64")
+endif()
+
 # Windows Code Signing Option
 if(WIN32)
   optionx(ENABLE_WINDOWS_CODESIGNING BOOL "Enable Windows code signing with DigiCert KeyLocker" DEFAULT OFF)
@@ -199,6 +212,16 @@ optionx(USE_WEBKIT_ICU BOOL "Use the ICU libraries from WebKit" DEFAULT ${DEFAUL
 
 optionx(ERROR_LIMIT STRING "Maximum number of errors to show when compiling C++ code" DEFAULT "100")
 
+# TinyCC is used for FFI JIT compilation
+# Disable on Windows ARM64 where it's not yet supported
+if(WIN32 AND ARCH STREQUAL "aarch64")
+  set(DEFAULT_ENABLE_TINYCC OFF)
+else()
+  set(DEFAULT_ENABLE_TINYCC ON)
+endif()
+
+optionx(ENABLE_TINYCC BOOL "Enable TinyCC for FFI JIT compilation" DEFAULT ${DEFAULT_ENABLE_TINYCC})
+
 # This is not an `option` because setting this variable to OFF is experimental
 # and unsupported. This replaces the `use_mimalloc` variable previously in
 # bun.zig, and enables C++ code to also be aware of the option.

cmake/Sources.json

@@ -13,10 +13,7 @@
   },
   {
     "output": "JavaScriptSources.txt",
-    "paths": [
-      "src/js/**/*.{js,ts}",
-      "src/install/PackageManager/scanner-entry.ts"
-    ]
+    "paths": ["src/js/**/*.{js,ts}", "src/install/PackageManager/scanner-entry.ts"]
   },
   {
     "output": "JavaScriptCodegenSources.txt",

cmake/arm64-static-lib-fix.cmake

@@ -0,0 +1,8 @@
+# This file is included after project() via CMAKE_PROJECT_INCLUDE
+# It fixes the static library creation command to use ARM64 machine type
+
+if(WIN32 AND CMAKE_SYSTEM_PROCESSOR STREQUAL \"aarch64\")
+  # Override the static library creation commands to avoid spurious /machine:x64 flags
+  set(CMAKE_C_CREATE_STATIC_LIBRARY \"<CMAKE_AR> /nologo /machine:ARM64 /out:<TARGET> <OBJECTS>\" CACHE STRING \"\" FORCE)
+  set(CMAKE_CXX_CREATE_STATIC_LIBRARY \"<CMAKE_AR> /nologo /machine:ARM64 /out:<TARGET> <OBJECTS>\" CACHE STRING \"\" FORCE)
+endif()

cmake/scripts/DownloadZig.cmake

@@ -21,7 +21,12 @@ if(NOT DEFINED CMAKE_HOST_SYSTEM_PROCESSOR)
 endif()
 
 if(CMAKE_HOST_SYSTEM_PROCESSOR MATCHES "arm64|ARM64|aarch64|AARCH64")
-  set(ZIG_ARCH "aarch64")
+  # Windows ARM64 can run x86_64 via emulation, and no native ARM64 Zig build exists yet
+  if(CMAKE_HOST_WIN32)
+    set(ZIG_ARCH "x86_64")
+  else()
+    set(ZIG_ARCH "aarch64")
+  endif()
 elseif(CMAKE_HOST_SYSTEM_PROCESSOR MATCHES "amd64|AMD64|x86_64|X86_64|x64|X64")
   set(ZIG_ARCH "x86_64")
 else()

cmake/scripts/llvm-lib-arm64.bat

@@ -0,0 +1,34 @@
+@echo off
+setlocal enabledelayedexpansion
+
+REM Wrapper for llvm-lib that strips conflicting /machine:x64 flag for ARM64 builds
+REM This is a workaround for CMake 4.1.0 bug
+
+REM Find llvm-lib.exe - check LLVM_LIB env var, then PATH, then known locations
+if defined LLVM_LIB (
+    set "LLVM_LIB_EXE=!LLVM_LIB!"
+) else (
+    where llvm-lib.exe >nul 2>&1
+    if !ERRORLEVEL! equ 0 (
+        for /f "delims=" %%i in ('where llvm-lib.exe') do set "LLVM_LIB_EXE=%%i"
+    ) else if exist "C:\Program Files\LLVM\bin\llvm-lib.exe" (
+        set "LLVM_LIB_EXE=C:\Program Files\LLVM\bin\llvm-lib.exe"
+    ) else (
+        echo Error: Cannot find llvm-lib.exe. Set LLVM_LIB environment variable or add LLVM to PATH.
+        exit /b 1
+    )
+)
+
+set "ARGS="
+
+for %%a in (%*) do (
+    set "ARG=%%a"
+    if /i "!ARG!"=="/machine:x64" (
+        REM Skip this argument
+    ) else (
+        set "ARGS=!ARGS! %%a"
+    )
+)
+
+"!LLVM_LIB_EXE!" %ARGS%
+exit /b %ERRORLEVEL%

cmake/scripts/llvm-lib-arm64.ps1

@@ -0,0 +1,18 @@
+# Wrapper for llvm-lib that strips conflicting /machine:x64 flag for ARM64 builds
+# This is a workaround for CMake 4.1.0 bug where both /machine:ARM64 and /machine:x64 are added
+
+# Find llvm-lib.exe - check LLVM_LIB env var, then PATH, then known locations
+if ($env:LLVM_LIB) {
+    $llvmLib = $env:LLVM_LIB
+} elseif (Get-Command llvm-lib.exe -ErrorAction SilentlyContinue) {
+    $llvmLib = (Get-Command llvm-lib.exe).Source
+} elseif (Test-Path "C:\Program Files\LLVM\bin\llvm-lib.exe") {
+    $llvmLib = "C:\Program Files\LLVM\bin\llvm-lib.exe"
+} else {
+    Write-Error "Cannot find llvm-lib.exe. Set LLVM_LIB environment variable or add LLVM to PATH."
+    exit 1
+}
+
+$filteredArgs = $args | Where-Object { $_ -ne "/machine:x64" }
+& $llvmLib @filteredArgs
+exit $LASTEXITCODE

cmake/scripts/llvm-lib-wrapper.bat

@@ -0,0 +1,34 @@
+@echo off
+setlocal enabledelayedexpansion
+
+REM Wrapper for llvm-lib that strips conflicting /machine:x64 flag for ARM64 builds
+REM This is a workaround for CMake 4.1.0 bug
+
+REM Find llvm-lib.exe - check LLVM_LIB env var, then PATH, then known locations
+if defined LLVM_LIB (
+    set "LLVM_LIB_EXE=!LLVM_LIB!"
+) else (
+    where llvm-lib.exe >nul 2>&1
+    if !ERRORLEVEL! equ 0 (
+        for /f "delims=" %%i in ('where llvm-lib.exe') do set "LLVM_LIB_EXE=%%i"
+    ) else if exist "C:\Program Files\LLVM\bin\llvm-lib.exe" (
+        set "LLVM_LIB_EXE=C:\Program Files\LLVM\bin\llvm-lib.exe"
+    ) else (
+        echo Error: Cannot find llvm-lib.exe. Set LLVM_LIB environment variable or add LLVM to PATH.
+        exit /b 1
+    )
+)
+
+set NEWARGS=
+
+for %%a in (%*) do (
+    set "ARG=%%a"
+    if /i "!ARG!"=="/machine:x64" (
+        REM Skip /machine:x64 argument
+    ) else (
+        set "NEWARGS=!NEWARGS! %%a"
+    )
+)
+
+"!LLVM_LIB_EXE!" %NEWARGS%
+exit /b %ERRORLEVEL%

cmake/targets/BuildBoringSSL.cmake

@@ -4,7 +4,7 @@ register_repository(
   REPOSITORY
     oven-sh/boringssl
   COMMIT
-    f1ffd9e83d4f5c28a9c70d73f9a4e6fcf310062f
+    4f4f5ef8ebc6e23cbf393428f0ab1b526773f7ac
 )
 
 register_cmake_command(

cmake/targets/BuildBun.cmake

@@ -57,13 +57,17 @@ set(BUN_DEPENDENCIES
   LolHtml
   Lshpack
   Mimalloc
-  TinyCC
   Zlib
   LibArchive # must be loaded after zlib
   HdrHistogram # must be loaded after zlib
   Zstd
 )
 
+# TinyCC is optional - disabled on Windows ARM64 where it's not supported
+if(ENABLE_TINYCC)
+  list(APPEND BUN_DEPENDENCIES TinyCC)
+endif()
+
 include(CloneZstd)
 
 # --- Codegen ---
@@ -185,7 +189,7 @@ register_command(
   CWD
     ${BUN_NODE_FALLBACKS_SOURCE}
   COMMAND
-    ${BUN_EXECUTABLE} run build-fallbacks
+    ${BUN_EXECUTABLE} ${BUN_FLAGS} run build-fallbacks
       ${BUN_NODE_FALLBACKS_OUTPUT}
       ${BUN_NODE_FALLBACKS_SOURCES}
   SOURCES
@@ -206,7 +210,7 @@ register_command(
   CWD
     ${BUN_NODE_FALLBACKS_SOURCE}
   COMMAND
-    ${BUN_EXECUTABLE} build
+    ${BUN_EXECUTABLE} ${BUN_FLAGS} build
       ${BUN_NODE_FALLBACKS_SOURCE}/node_modules/react-refresh/cjs/react-refresh-runtime.development.js
       --outfile=${BUN_REACT_REFRESH_OUTPUT}
       --target=browser
@@ -243,6 +247,7 @@ register_command(
     "Generating ErrorCode.{zig,h}"
   COMMAND
     ${BUN_EXECUTABLE}
+      ${BUN_FLAGS}
       run
       ${BUN_ERROR_CODE_SCRIPT}
       ${CODEGEN_PATH}
@@ -278,6 +283,7 @@ register_command(
     "Generating ZigGeneratedClasses.{zig,cpp,h}"
   COMMAND
     ${BUN_EXECUTABLE}
+      ${BUN_FLAGS}
       run
       ${BUN_ZIG_GENERATED_CLASSES_SCRIPT}
       ${BUN_ZIG_GENERATED_CLASSES_SOURCES}
@@ -328,6 +334,7 @@ register_command(
     "Generating C++ --> Zig bindings"
   COMMAND
     ${BUN_EXECUTABLE}
+      ${BUN_FLAGS}
       ${CWD}/src/codegen/cppbind.ts
       ${CWD}/src
       ${CODEGEN_PATH}
@@ -345,6 +352,7 @@ register_command(
     "Generating CI info"
   COMMAND
     ${BUN_EXECUTABLE}
+      ${BUN_FLAGS}
       ${CWD}/src/codegen/ci_info.ts
       ${CODEGEN_PATH}/ci_info.zig
   SOURCES
@@ -353,24 +361,35 @@ register_command(
     ${BUN_CI_INFO_OUTPUTS}
 )
 
-register_command(
-  TARGET
-    bun-js-modules
-  COMMENT
-    "Generating JavaScript modules"
-  COMMAND
-    ${BUN_EXECUTABLE}
-      run
+if(SKIP_CODEGEN)
+  # Skip JavaScript codegen - useful for Windows ARM64 debug builds where bun crashes
+  message(STATUS "SKIP_CODEGEN is ON - skipping bun-js-modules codegen")
+  foreach(output ${BUN_JAVASCRIPT_OUTPUTS})
+    if(NOT EXISTS ${output})
+      message(FATAL_ERROR "SKIP_CODEGEN is ON but ${output} does not exist. Run codegen manually first.")
+    endif()
+  endforeach()
+else()
+  register_command(
+    TARGET
+      bun-js-modules
+    COMMENT
+      "Generating JavaScript modules"
+    COMMAND
+      ${BUN_EXECUTABLE}
+        ${BUN_FLAGS}
+        run
+        ${BUN_JAVASCRIPT_CODEGEN_SCRIPT}
+          --debug=${DEBUG}
+          ${BUILD_PATH}
+    SOURCES
+      ${BUN_JAVASCRIPT_SOURCES}
+      ${BUN_JAVASCRIPT_CODEGEN_SOURCES}
       ${BUN_JAVASCRIPT_CODEGEN_SCRIPT}
-        --debug=${DEBUG}
-        ${BUILD_PATH}
-  SOURCES
-    ${BUN_JAVASCRIPT_SOURCES}
-    ${BUN_JAVASCRIPT_CODEGEN_SOURCES}
-    ${BUN_JAVASCRIPT_CODEGEN_SCRIPT}
-  OUTPUTS
-    ${BUN_JAVASCRIPT_OUTPUTS}
-)
+    OUTPUTS
+      ${BUN_JAVASCRIPT_OUTPUTS}
+  )
+endif()
 
 set(BUN_BAKE_RUNTIME_CODEGEN_SCRIPT ${CWD}/src/codegen/bake-codegen.ts)
 
@@ -392,6 +411,7 @@ register_command(
     "Bundling Bake Runtime"
   COMMAND
     ${BUN_EXECUTABLE}
+      ${BUN_FLAGS}
       run
       ${BUN_BAKE_RUNTIME_CODEGEN_SCRIPT}
         --debug=${DEBUG}
@@ -415,7 +435,7 @@ string(REPLACE ";" "," BUN_BINDGENV2_SOURCES_COMMA_SEPARATED
   "${BUN_BINDGENV2_SOURCES}")
 
 execute_process(
-  COMMAND ${BUN_EXECUTABLE} run ${BUN_BINDGENV2_SCRIPT}
+  COMMAND ${BUN_EXECUTABLE} ${BUN_FLAGS} run ${BUN_BINDGENV2_SCRIPT}
     --command=list-outputs
     --sources=${BUN_BINDGENV2_SOURCES_COMMA_SEPARATED}
     --codegen-path=${CODEGEN_PATH}
@@ -438,7 +458,7 @@ register_command(
   COMMENT
     "Generating bindings (v2)"
   COMMAND
-    ${BUN_EXECUTABLE} run ${BUN_BINDGENV2_SCRIPT}
+    ${BUN_EXECUTABLE} ${BUN_FLAGS} run ${BUN_BINDGENV2_SCRIPT}
       --command=generate
       --codegen-path=${CODEGEN_PATH}
       --sources=${BUN_BINDGENV2_SOURCES_COMMA_SEPARATED}
@@ -469,6 +489,7 @@ register_command(
     "Processing \".bind.ts\" files"
   COMMAND
     ${BUN_EXECUTABLE}
+      ${BUN_FLAGS}
       run
       ${BUN_BINDGEN_SCRIPT}
         --debug=${DEBUG}
@@ -501,6 +522,7 @@ register_command(
     "Generating JSSink.{cpp,h}"
   COMMAND
     ${BUN_EXECUTABLE}
+      ${BUN_FLAGS}
       run
       ${BUN_JS_SINK_SCRIPT}
       ${CODEGEN_PATH}
@@ -573,6 +595,7 @@ foreach(i RANGE 0 ${BUN_OBJECT_LUT_SOURCES_MAX_INDEX})
       ${BUN_OBJECT_LUT_SOURCE}
     COMMAND
       ${BUN_EXECUTABLE}
+        ${BUN_FLAGS}
         run
         ${BUN_OBJECT_LUT_SCRIPT}
         ${BUN_OBJECT_LUT_SOURCE}
@@ -656,6 +679,10 @@ endif()
 if(CMAKE_SYSTEM_PROCESSOR MATCHES "arm|ARM|arm64|ARM64|aarch64|AARCH64")
   if(APPLE)
     set(ZIG_CPU "apple_m1")
+  elseif(WIN32)
+    # Windows ARM64: use a specific CPU with NEON support
+    # Zig running under x64 emulation would detect wrong CPU with "native"
+    set(ZIG_CPU "cortex_a76")
   else()
     set(ZIG_CPU "native")
   endif()
@@ -694,6 +721,7 @@ register_command(
       -Denable_asan=$<IF:$<BOOL:${ENABLE_ZIG_ASAN}>,true,false>
       -Denable_fuzzilli=$<IF:$<BOOL:${ENABLE_FUZZILLI}>,true,false>
       -Denable_valgrind=$<IF:$<BOOL:${ENABLE_VALGRIND}>,true,false>
+      -Denable_tinycc=$<IF:$<BOOL:${ENABLE_TINYCC}>,true,false>
       -Duse_mimalloc=$<IF:$<BOOL:${USE_MIMALLOC_AS_DEFAULT_ALLOCATOR}>,true,false>
       -Dllvm_codegen_threads=${LLVM_ZIG_CODEGEN_THREADS}
       -Dversion=${VERSION}
@@ -911,7 +939,7 @@ if(WIN32)
 endif()
 
 if(USE_MIMALLOC_AS_DEFAULT_ALLOCATOR)
-  target_compile_definitions(${bun} PRIVATE USE_MIMALLOC=1)
+  target_compile_definitions(${bun} PRIVATE USE_BUN_MIMALLOC=1)
 endif()
 
 target_compile_definitions(${bun} PRIVATE
@@ -1211,7 +1239,7 @@ if(BUN_LINK_ONLY)
         WEBKIT_DOWNLOAD_URL=${WEBKIT_DOWNLOAD_URL}
         WEBKIT_VERSION=${WEBKIT_VERSION}
         ZIG_COMMIT=${ZIG_COMMIT}
-        ${BUN_EXECUTABLE} ${CWD}/scripts/create-link-metadata.mjs ${BUILD_PATH} ${bun}
+        ${BUN_EXECUTABLE} ${BUN_FLAGS} ${CWD}/scripts/create-link-metadata.mjs ${BUILD_PATH} ${bun}
     SOURCES
       ${BUN_ZIG_OUTPUT}
       ${BUN_CPP_OUTPUT}
@@ -1225,6 +1253,7 @@ if(WIN32)
     target_link_libraries(${bun} PRIVATE
       ${WEBKIT_LIB_PATH}/WTF.lib
       ${WEBKIT_LIB_PATH}/JavaScriptCore.lib
+      ${WEBKIT_LIB_PATH}/bmalloc.lib
       ${WEBKIT_LIB_PATH}/sicudtd.lib
       ${WEBKIT_LIB_PATH}/sicuind.lib
       ${WEBKIT_LIB_PATH}/sicuucd.lib
@@ -1233,6 +1262,7 @@ if(WIN32)
     target_link_libraries(${bun} PRIVATE
       ${WEBKIT_LIB_PATH}/WTF.lib
       ${WEBKIT_LIB_PATH}/JavaScriptCore.lib
+      ${WEBKIT_LIB_PATH}/bmalloc.lib
       ${WEBKIT_LIB_PATH}/sicudt.lib
       ${WEBKIT_LIB_PATH}/sicuin.lib
       ${WEBKIT_LIB_PATH}/sicuuc.lib
@@ -1243,13 +1273,18 @@ else()
     ${WEBKIT_LIB_PATH}/libWTF.a
     ${WEBKIT_LIB_PATH}/libJavaScriptCore.a
   )
-  if(NOT APPLE OR EXISTS ${WEBKIT_LIB_PATH}/libbmalloc.a)
+  if(WEBKIT_LOCAL OR NOT APPLE OR EXISTS ${WEBKIT_LIB_PATH}/libbmalloc.a)
     target_link_libraries(${bun} PRIVATE ${WEBKIT_LIB_PATH}/libbmalloc.a)
   endif()
 endif()
 
 include_directories(${WEBKIT_INCLUDE_PATH})
 
+# When building with a local WebKit, ensure JSC is built before compiling Bun's C++ sources.
+if(WEBKIT_LOCAL AND TARGET jsc)
+  add_dependencies(${bun} jsc)
+endif()
+
 # Include the generated dependency versions header
 include_directories(${CMAKE_BINARY_DIR})
 
@@ -1294,9 +1329,14 @@ if(LINUX)
     target_link_libraries(${bun} PUBLIC libatomic.so)
   endif()
 
-  target_link_libraries(${bun} PRIVATE ${WEBKIT_LIB_PATH}/libicudata.a)
-  target_link_libraries(${bun} PRIVATE ${WEBKIT_LIB_PATH}/libicui18n.a)
-  target_link_libraries(${bun} PRIVATE ${WEBKIT_LIB_PATH}/libicuuc.a)
+  if(WEBKIT_LOCAL)
+    find_package(ICU REQUIRED COMPONENTS data i18n uc)
+    target_link_libraries(${bun} PRIVATE ICU::data ICU::i18n ICU::uc)
+  else()
+    target_link_libraries(${bun} PRIVATE ${WEBKIT_LIB_PATH}/libicudata.a)
+    target_link_libraries(${bun} PRIVATE ${WEBKIT_LIB_PATH}/libicui18n.a)
+    target_link_libraries(${bun} PRIVATE ${WEBKIT_LIB_PATH}/libicuuc.a)
+  endif()
 endif()
 
 if(WIN32)
@@ -1310,6 +1350,9 @@ if(WIN32)
     wsock32 # ws2_32 required by TransmitFile aka sendfile on windows
     delayimp.lib
   )
+  # Required for static ICU linkage - without this, ICU headers expect DLL linkage
+  # which causes ABI mismatch and crashes (STATUS_STACK_BUFFER_OVERRUN)
+  target_compile_definitions(${bun} PRIVATE U_STATIC_IMPLEMENTATION)
 endif()
 
 # --- Packaging ---

cmake/targets/BuildHighway.cmake

@@ -20,6 +20,15 @@ set(HIGHWAY_CMAKE_ARGS
   -DHWY_ENABLE_INSTALL=OFF
 )
 
+# On Windows ARM64 with clang-cl, the __ARM_NEON macro isn't defined by default
+# but NEON intrinsics are supported. Define it so Highway can detect NEON support.
+if(WIN32 AND CMAKE_SYSTEM_PROCESSOR MATCHES "ARM64|aarch64|AARCH64")
+  list(APPEND HIGHWAY_CMAKE_ARGS
+    -DCMAKE_C_FLAGS=-D__ARM_NEON=1
+    -DCMAKE_CXX_FLAGS=-D__ARM_NEON=1
+  )
+endif()
+
 register_cmake_command(
   TARGET
     highway

cmake/targets/BuildLolHtml.cmake

@@ -4,7 +4,7 @@ register_repository(
   REPOSITORY
     cloudflare/lol-html
   COMMIT
-    d64457d9ff0143deef025d5df7e8586092b9afb7
+    e9e16dca48dd4a8ffbc77642bc4be60407585f11
 )
 
 set(LOLHTML_CWD ${VENDOR_PATH}/lolhtml/c-api)
@@ -33,6 +33,37 @@ if (NOT WIN32)
   set(RUSTFLAGS "-Cpanic=abort-Cdebuginfo=0-Cforce-unwind-tables=no-Copt-level=s")
 endif()
 
+# On Windows, ensure MSVC link.exe is used instead of Git's link.exe
+set(LOLHTML_ENV
+  CARGO_TERM_COLOR=always
+  CARGO_TERM_VERBOSE=true
+  CARGO_TERM_DIAGNOSTIC=true
+  CARGO_ENCODED_RUSTFLAGS=${RUSTFLAGS}
+  CARGO_HOME=${CARGO_HOME}
+  RUSTUP_HOME=${RUSTUP_HOME}
+)
+
+if(WIN32)
+  # On Windows, tell Rust to use MSVC link.exe directly via the target-specific linker env var.
+  # This avoids Git's /usr/bin/link being found first in PATH.
+  # Find the MSVC link.exe from Visual Studio installation
+  file(GLOB MSVC_VERSIONS "C:/Program Files/Microsoft Visual Studio/2022/*/VC/Tools/MSVC/*")
+  if(MSVC_VERSIONS)
+    list(GET MSVC_VERSIONS -1 MSVC_LATEST)  # Get the latest version
+    if(CMAKE_SYSTEM_PROCESSOR MATCHES "ARM64|aarch64")
+      set(MSVC_LINK_PATH "${MSVC_LATEST}/bin/HostARM64/arm64/link.exe")
+      set(CARGO_LINKER_VAR "CARGO_TARGET_AARCH64_PC_WINDOWS_MSVC_LINKER")
+    else()
+      set(MSVC_LINK_PATH "${MSVC_LATEST}/bin/Hostx64/x64/link.exe")
+      set(CARGO_LINKER_VAR "CARGO_TARGET_X86_64_PC_WINDOWS_MSVC_LINKER")
+    endif()
+    if(EXISTS "${MSVC_LINK_PATH}")
+      list(APPEND LOLHTML_ENV "${CARGO_LINKER_VAR}=${MSVC_LINK_PATH}")
+      message(STATUS "lolhtml: Using MSVC link.exe: ${MSVC_LINK_PATH}")
+    endif()
+  endif()
+endif()
+
 register_command(
   TARGET
     lolhtml
@@ -45,12 +76,7 @@ register_command(
   ARTIFACTS
     ${LOLHTML_LIBRARY}
   ENVIRONMENT
-    CARGO_TERM_COLOR=always
-    CARGO_TERM_VERBOSE=true
-    CARGO_TERM_DIAGNOSTIC=true
-    CARGO_ENCODED_RUSTFLAGS=${RUSTFLAGS}
-    CARGO_HOME=${CARGO_HOME}
-    RUSTUP_HOME=${RUSTUP_HOME}
+    ${LOLHTML_ENV}
 )
 
 target_link_libraries(${bun} PRIVATE ${LOLHTML_LIBRARY})

cmake/targets/BuildMimalloc.cmake

@@ -4,7 +4,7 @@ register_repository(
   REPOSITORY
     oven-sh/mimalloc
   COMMIT
-    1beadf9651a7bfdec6b5367c380ecc3fe1c40d1a
+    ffa38ab8ac914f9eb7af75c1f8ad457643dc14f2
 )
 
 set(MIMALLOC_CMAKE_ARGS
@@ -14,7 +14,7 @@ set(MIMALLOC_CMAKE_ARGS
   -DMI_BUILD_TESTS=OFF
   -DMI_USE_CXX=ON
   -DMI_SKIP_COLLECT_ON_EXIT=ON
-  
+
   # ```
   # ❯ mimalloc_allow_large_os_pages=0 BUN_PORT=3004 mem bun http-hello.js
   # Started development server: http://localhost:3004
@@ -51,7 +51,7 @@ if(ENABLE_ASAN)
   list(APPEND MIMALLOC_CMAKE_ARGS -DMI_DEBUG_UBSAN=ON)
 elseif(APPLE OR LINUX)
   if(APPLE)
-    list(APPEND MIMALLOC_CMAKE_ARGS -DMI_OVERRIDE=OFF)  
+    list(APPEND MIMALLOC_CMAKE_ARGS -DMI_OVERRIDE=OFF)
     list(APPEND MIMALLOC_CMAKE_ARGS -DMI_OSX_ZONE=OFF)
     list(APPEND MIMALLOC_CMAKE_ARGS -DMI_OSX_INTERPOSE=OFF)
   else()
@@ -69,17 +69,27 @@ if(ENABLE_VALGRIND)
   list(APPEND MIMALLOC_CMAKE_ARGS -DMI_VALGRIND=ON)
 endif()
 
-# Enable SIMD optimizations when not building for baseline (older CPUs)
-if(NOT ENABLE_BASELINE)
+# Enable architecture-specific optimizations when not building for baseline.
+# On Linux aarch64, upstream mimalloc force-enables MI_OPT_ARCH which adds
+# -march=armv8.1-a (LSE atomics). This crashes on ARMv8.0 CPUs
+# (Cortex-A53, Raspberry Pi 4, AWS a1 instances). Use MI_NO_OPT_ARCH
+# to prevent that, but keep SIMD enabled. -moutline-atomics for runtime
+# dispatch to LSE/LL-SC. macOS arm64 always has LSE (Apple Silicon) so
+# MI_OPT_ARCH is safe there.
+if(CMAKE_SYSTEM_PROCESSOR MATCHES "aarch64|arm64|ARM64|AARCH64" AND NOT APPLE)
+  list(APPEND MIMALLOC_CMAKE_ARGS -DMI_NO_OPT_ARCH=ON)
+  list(APPEND MIMALLOC_CMAKE_ARGS -DMI_OPT_SIMD=ON)
+  list(APPEND MIMALLOC_CMAKE_ARGS "-DCMAKE_C_FLAGS=-moutline-atomics")
+elseif(NOT ENABLE_BASELINE)
   list(APPEND MIMALLOC_CMAKE_ARGS -DMI_OPT_ARCH=ON)
   list(APPEND MIMALLOC_CMAKE_ARGS -DMI_OPT_SIMD=ON)
 endif()
 
 if(WIN32)
   if(DEBUG)
-    set(MIMALLOC_LIBRARY mimalloc-static-debug)
+    set(MIMALLOC_LIBRARY mimalloc-debug)
   else()
-    set(MIMALLOC_LIBRARY mimalloc-static)
+    set(MIMALLOC_LIBRARY mimalloc)
   endif()
 elseif(DEBUG)
   if (ENABLE_ASAN)

cmake/targets/BuildTinyCC.cmake

@@ -4,7 +4,7 @@ register_repository(
   REPOSITORY
     oven-sh/tinycc
   COMMIT
-    29985a3b59898861442fa3b43f663fc1af2591d7
+    12882eee073cfe5c7621bcfadf679e1372d4537b
 )
 
 register_cmake_command(

cmake/toolchains/windows-aarch64.cmake

@@ -0,0 +1,20 @@
+set(CMAKE_SYSTEM_NAME Windows)
+set(CMAKE_SYSTEM_PROCESSOR aarch64)
+
+set(CMAKE_C_COMPILER_WORKS ON)
+set(CMAKE_CXX_COMPILER_WORKS ON)
+
+# Force ARM64 architecture ID - this is what CMake uses to determine /machine: flag
+set(MSVC_C_ARCHITECTURE_ID ARM64 CACHE INTERNAL "")
+set(MSVC_CXX_ARCHITECTURE_ID ARM64 CACHE INTERNAL "")
+
+# CMake 4.0+ policy CMP0197 controls how MSVC machine type flags are handled
+set(CMAKE_POLICY_DEFAULT_CMP0197 NEW CACHE INTERNAL "")
+
+# Clear any inherited static linker flags that might have wrong machine types
+set(CMAKE_STATIC_LINKER_FLAGS "" CACHE STRING "" FORCE)
+
+# Use wrapper script for llvm-lib that strips /machine:x64 flags
+# This works around CMake 4.1.0 bug where both ARM64 and x64 machine flags are added
+get_filename_component(_TOOLCHAIN_DIR "${CMAKE_CURRENT_LIST_DIR}" DIRECTORY)
+set(CMAKE_AR "${_TOOLCHAIN_DIR}/scripts/llvm-lib-wrapper.bat" CACHE FILEPATH "" FORCE)

cmake/tools/SetupBuildkite.cmake

@@ -6,7 +6,8 @@ endif()
 
 optionx(BUILDKITE_ORGANIZATION_SLUG STRING "The organization slug to use on Buildkite" DEFAULT "bun")
 optionx(BUILDKITE_PIPELINE_SLUG STRING "The pipeline slug to use on Buildkite" DEFAULT "bun")
-optionx(BUILDKITE_BUILD_ID STRING "The build ID to use on Buildkite")
+optionx(BUILDKITE_BUILD_ID STRING "The build ID (UUID) to use on Buildkite")
+optionx(BUILDKITE_BUILD_NUMBER STRING "The build number to use on Buildkite")
 optionx(BUILDKITE_GROUP_ID STRING "The group ID to use on Buildkite")
 
 if(ENABLE_BASELINE)
@@ -32,7 +33,13 @@ if(NOT BUILDKITE_BUILD_ID)
   return()
 endif()
 
-setx(BUILDKITE_BUILD_URL https://buildkite.com/${BUILDKITE_ORGANIZATION_SLUG}/${BUILDKITE_PIPELINE_SLUG}/builds/${BUILDKITE_BUILD_ID})
+# Use BUILDKITE_BUILD_NUMBER for the URL if available, as the UUID format causes a 302 redirect
+# that CMake's file(DOWNLOAD) doesn't follow, resulting in empty response.
+if(BUILDKITE_BUILD_NUMBER)
+  setx(BUILDKITE_BUILD_URL https://buildkite.com/${BUILDKITE_ORGANIZATION_SLUG}/${BUILDKITE_PIPELINE_SLUG}/builds/${BUILDKITE_BUILD_NUMBER})
+else()
+  setx(BUILDKITE_BUILD_URL https://buildkite.com/${BUILDKITE_ORGANIZATION_SLUG}/${BUILDKITE_PIPELINE_SLUG}/builds/${BUILDKITE_BUILD_ID})
+endif()
 setx(BUILDKITE_BUILD_PATH ${BUILDKITE_BUILDS_PATH}/builds/${BUILDKITE_BUILD_ID})
 
 file(
@@ -48,8 +55,16 @@ if(NOT BUILDKITE_BUILD_STATUS EQUAL 0)
 endif()
 
 file(READ ${BUILDKITE_BUILD_PATH}/build.json BUILDKITE_BUILD)
-# Escape backslashes so CMake doesn't interpret JSON escape sequences (e.g., \n in commit messages)
-string(REPLACE "\\" "\\\\" BUILDKITE_BUILD "${BUILDKITE_BUILD}")
+# CMake's string(JSON ...) interprets escape sequences like \n, \r, \t.
+# We need to escape these specific sequences while preserving valid JSON escapes like \" and \\.
+# Strategy: Use a unique placeholder to protect \\ sequences, escape \n/\r/\t, then restore \\.
+# This prevents \\n (literal backslash + n) from being corrupted to \\\n.
+set(BKSLASH_PLACEHOLDER "___BKSLASH_PLACEHOLDER_7f3a9b2c___")
+string(REPLACE "\\\\" "${BKSLASH_PLACEHOLDER}" BUILDKITE_BUILD "${BUILDKITE_BUILD}")
+string(REPLACE "\\n" "\\\\n" BUILDKITE_BUILD "${BUILDKITE_BUILD}")
+string(REPLACE "\\r" "\\\\r" BUILDKITE_BUILD "${BUILDKITE_BUILD}")
+string(REPLACE "\\t" "\\\\t" BUILDKITE_BUILD "${BUILDKITE_BUILD}")
+string(REPLACE "${BKSLASH_PLACEHOLDER}" "\\\\" BUILDKITE_BUILD "${BUILDKITE_BUILD}")
 
 string(JSON BUILDKITE_BUILD_UUID GET ${BUILDKITE_BUILD} id)
 string(JSON BUILDKITE_JOBS GET ${BUILDKITE_BUILD} jobs)

cmake/tools/SetupBun.cmake

@@ -17,6 +17,14 @@ if (NOT CI)
   set(BUN_EXECUTABLE ${BUN_EXECUTABLE} CACHE FILEPATH "Bun executable" FORCE)
 endif()
 
+# On Windows ARM64, we need to add --smol flag to avoid crashes when running
+# x64 bun under WoW64 emulation
+if(WIN32 AND ARCH STREQUAL "aarch64")
+  set(BUN_FLAGS "--smol" CACHE STRING "Extra flags for bun executable")
+else()
+  set(BUN_FLAGS "" CACHE STRING "Extra flags for bun executable")
+endif()
+
 # If this is not set, some advanced features are not checked.
 # https://github.com/oven-sh/bun/blob/cd7f6a1589db7f1e39dc4e3f4a17234afbe7826c/src/bun.js/javascript.zig#L1069-L1072
 setenv(BUN_GARBAGE_COLLECTOR_LEVEL 1)

cmake/tools/SetupLLVM.cmake

@@ -12,7 +12,13 @@ if(NOT ENABLE_LLVM)
   return()
 endif()
 
-set(DEFAULT_LLVM_VERSION "19.1.7")
+# LLVM 21 is required for Windows ARM64 (first version with ARM64 Windows builds)
+# Other platforms use LLVM 19.1.7
+if(WIN32 AND CMAKE_SYSTEM_PROCESSOR MATCHES "ARM64|aarch64|AARCH64")
+  set(DEFAULT_LLVM_VERSION "21.1.8")
+else()
+  set(DEFAULT_LLVM_VERSION "19.1.7")
+endif()
 
 optionx(LLVM_VERSION STRING "The version of LLVM to use" DEFAULT ${DEFAULT_LLVM_VERSION})
 

cmake/tools/SetupMacSDK.cmake

@@ -31,13 +31,6 @@ execute_process(
   ERROR_QUIET
 )
 
-if(MACOS_VERSION VERSION_LESS ${CMAKE_OSX_DEPLOYMENT_TARGET})
-  message(FATAL_ERROR "Your computer is running macOS ${MACOS_VERSION}, which is older than the target macOS SDK ${CMAKE_OSX_DEPLOYMENT_TARGET}. To fix this, either:\n"
-    " - Upgrade your computer to macOS ${CMAKE_OSX_DEPLOYMENT_TARGET} or newer\n"
-    " - Download a newer version of the macOS SDK from Apple: https://developer.apple.com/download/all/?q=xcode\n"
-    " - Set -DCMAKE_OSX_DEPLOYMENT_TARGET=${MACOS_VERSION}\n")
-endif()
-
 execute_process(
   COMMAND xcrun --sdk macosx --show-sdk-path
   OUTPUT_VARIABLE DEFAULT_CMAKE_OSX_SYSROOT

cmake/tools/SetupWebKit.cmake

@@ -1,14 +1,25 @@
+# NOTE: Changes to this file trigger QEMU JIT stress tests in CI.
+# See scripts/verify-jit-stress-qemu.sh for details.
+
 option(WEBKIT_VERSION "The version of WebKit to use")
 option(WEBKIT_LOCAL "If a local version of WebKit should be used instead of downloading")
+option(WEBKIT_BUILD_TYPE "The build type for local WebKit (defaults to CMAKE_BUILD_TYPE)")
 
 if(NOT WEBKIT_VERSION)
-  set(WEBKIT_VERSION 1d0216219a3c52cb85195f48f19ba7d5db747ff7)
+  set(WEBKIT_VERSION 515344bc5d65aa2d4f9ff277b5fb944f0e051dcd)
 endif()
 
+# Use preview build URL for Windows ARM64 until the fix is merged to main
+set(WEBKIT_PREVIEW_PR 140)
+
 string(SUBSTRING ${WEBKIT_VERSION} 0 16 WEBKIT_VERSION_PREFIX)
+string(SUBSTRING ${WEBKIT_VERSION} 0 8 WEBKIT_VERSION_SHORT)
 
 if(WEBKIT_LOCAL)
-  set(DEFAULT_WEBKIT_PATH ${VENDOR_PATH}/WebKit/WebKitBuild/${CMAKE_BUILD_TYPE})
+  if(NOT WEBKIT_BUILD_TYPE)
+    set(WEBKIT_BUILD_TYPE ${CMAKE_BUILD_TYPE})
+  endif()
+  set(DEFAULT_WEBKIT_PATH ${VENDOR_PATH}/WebKit/WebKitBuild/${WEBKIT_BUILD_TYPE})
 else()
   set(DEFAULT_WEBKIT_PATH ${CACHE_PATH}/webkit-${WEBKIT_VERSION_PREFIX})
 endif()
@@ -23,19 +34,153 @@ set(WEBKIT_INCLUDE_PATH ${WEBKIT_PATH}/include)
 set(WEBKIT_LIB_PATH ${WEBKIT_PATH}/lib)
 
 if(WEBKIT_LOCAL)
-  if(EXISTS ${WEBKIT_PATH}/cmakeconfig.h)
-    # You may need to run:
-    # make jsc-compile-debug jsc-copy-headers
-    include_directories(
-      ${WEBKIT_PATH}
-      ${WEBKIT_PATH}/JavaScriptCore/Headers
-      ${WEBKIT_PATH}/JavaScriptCore/Headers/JavaScriptCore
-      ${WEBKIT_PATH}/JavaScriptCore/PrivateHeaders
-      ${WEBKIT_PATH}/bmalloc/Headers
-      ${WEBKIT_PATH}/WTF/Headers
-      ${WEBKIT_PATH}/JavaScriptCore/DerivedSources/inspector
-      ${WEBKIT_PATH}/JavaScriptCore/PrivateHeaders/JavaScriptCore
+  set(WEBKIT_SOURCE_DIR ${VENDOR_PATH}/WebKit)
+
+  if(WIN32)
+    # --- Build ICU from source (Windows only) ---
+    # On macOS, ICU is found automatically (Homebrew icu4c for headers, system for libs).
+    # On Linux, ICU is found automatically from system packages (e.g. libicu-dev).
+    # On Windows, there is no system ICU, so we build it from source.
+    set(ICU_LOCAL_ROOT ${VENDOR_PATH}/WebKit/WebKitBuild/icu)
+    if(NOT EXISTS ${ICU_LOCAL_ROOT}/lib/sicudt.lib)
+      message(STATUS "Building ICU from source...")
+      if(CMAKE_SYSTEM_PROCESSOR MATCHES "arm64|ARM64|aarch64|AARCH64")
+        set(ICU_PLATFORM "ARM64")
+      else()
+        set(ICU_PLATFORM "x64")
+      endif()
+      execute_process(
+        COMMAND powershell -ExecutionPolicy Bypass -File
+          ${WEBKIT_SOURCE_DIR}/build-icu.ps1
+          -Platform ${ICU_PLATFORM}
+          -BuildType ${WEBKIT_BUILD_TYPE}
+          -OutputDir ${ICU_LOCAL_ROOT}
+        RESULT_VARIABLE ICU_BUILD_RESULT
+      )
+      if(NOT ICU_BUILD_RESULT EQUAL 0)
+        message(FATAL_ERROR "Failed to build ICU (exit code: ${ICU_BUILD_RESULT}).")
+      endif()
+    endif()
+
+    # Copy ICU libs to WEBKIT_LIB_PATH with the names BuildBun.cmake expects.
+    # Prebuilt WebKit uses 's' prefix (static) and 'd' suffix (debug).
+    file(MAKE_DIRECTORY ${WEBKIT_LIB_PATH})
+    if(WEBKIT_BUILD_TYPE STREQUAL "Debug")
+      set(ICU_SUFFIX "d")
+    else()
+      set(ICU_SUFFIX "")
+    endif()
+    file(COPY_FILE ${ICU_LOCAL_ROOT}/lib/sicudt.lib ${WEBKIT_LIB_PATH}/sicudt${ICU_SUFFIX}.lib ONLY_IF_DIFFERENT)
+    file(COPY_FILE ${ICU_LOCAL_ROOT}/lib/icuin.lib ${WEBKIT_LIB_PATH}/sicuin${ICU_SUFFIX}.lib ONLY_IF_DIFFERENT)
+    file(COPY_FILE ${ICU_LOCAL_ROOT}/lib/icuuc.lib ${WEBKIT_LIB_PATH}/sicuuc${ICU_SUFFIX}.lib ONLY_IF_DIFFERENT)
+  endif()
+
+  # --- Configure JSC ---
+  message(STATUS "Configuring JSC from local WebKit source at ${WEBKIT_SOURCE_DIR}...")
+
+  set(JSC_CMAKE_ARGS
+    -S ${WEBKIT_SOURCE_DIR}
+    -B ${WEBKIT_PATH}
+    -G ${CMAKE_GENERATOR}
+    -DPORT=JSCOnly
+    -DENABLE_STATIC_JSC=ON
+    -DUSE_THIN_ARCHIVES=OFF
+    -DENABLE_FTL_JIT=ON
+    -DCMAKE_EXPORT_COMPILE_COMMANDS=ON
+    -DUSE_BUN_JSC_ADDITIONS=ON
+    -DUSE_BUN_EVENT_LOOP=ON
+    -DENABLE_BUN_SKIP_FAILING_ASSERTIONS=ON
+    -DALLOW_LINE_AND_COLUMN_NUMBER_IN_BUILTINS=ON
+    -DCMAKE_BUILD_TYPE=${WEBKIT_BUILD_TYPE}
+    -DCMAKE_C_COMPILER=${CMAKE_C_COMPILER}
+    -DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER}
+    -DENABLE_REMOTE_INSPECTOR=ON
+  )
+
+  if(WIN32)
+    # ICU paths and Windows-specific compiler/linker settings
+    list(APPEND JSC_CMAKE_ARGS
+      -DICU_ROOT=${ICU_LOCAL_ROOT}
+      -DICU_LIBRARY=${ICU_LOCAL_ROOT}/lib
+      -DICU_INCLUDE_DIR=${ICU_LOCAL_ROOT}/include
+      -DCMAKE_LINKER=lld-link
     )
+    # Static CRT and U_STATIC_IMPLEMENTATION
+    if(WEBKIT_BUILD_TYPE STREQUAL "Debug")
+      set(JSC_MSVC_RUNTIME "MultiThreadedDebug")
+    else()
+      set(JSC_MSVC_RUNTIME "MultiThreaded")
+    endif()
+    list(APPEND JSC_CMAKE_ARGS
+      -DCMAKE_MSVC_RUNTIME_LIBRARY=${JSC_MSVC_RUNTIME}
+      "-DCMAKE_C_FLAGS=/DU_STATIC_IMPLEMENTATION"
+      "-DCMAKE_CXX_FLAGS=/DU_STATIC_IMPLEMENTATION /clang:-fno-c++-static-destructors"
+    )
+  endif()
+
+  if(ENABLE_ASAN)
+    list(APPEND JSC_CMAKE_ARGS -DENABLE_SANITIZERS=address)
+  endif()
+
+  # Pass through ccache if available
+  if(CMAKE_C_COMPILER_LAUNCHER)
+    list(APPEND JSC_CMAKE_ARGS -DCMAKE_C_COMPILER_LAUNCHER=${CMAKE_C_COMPILER_LAUNCHER})
+  endif()
+  if(CMAKE_CXX_COMPILER_LAUNCHER)
+    list(APPEND JSC_CMAKE_ARGS -DCMAKE_CXX_COMPILER_LAUNCHER=${CMAKE_CXX_COMPILER_LAUNCHER})
+  endif()
+
+  execute_process(
+    COMMAND ${CMAKE_COMMAND} ${JSC_CMAKE_ARGS}
+    RESULT_VARIABLE JSC_CONFIGURE_RESULT
+  )
+  if(NOT JSC_CONFIGURE_RESULT EQUAL 0)
+    message(FATAL_ERROR "Failed to configure JSC (exit code: ${JSC_CONFIGURE_RESULT}). "
+      "Check the output above for errors.")
+  endif()
+
+  if(WIN32)
+    set(JSC_BYPRODUCTS
+      ${WEBKIT_LIB_PATH}/JavaScriptCore.lib
+      ${WEBKIT_LIB_PATH}/WTF.lib
+      ${WEBKIT_LIB_PATH}/bmalloc.lib
+    )
+  else()
+    set(JSC_BYPRODUCTS
+      ${WEBKIT_LIB_PATH}/libJavaScriptCore.a
+      ${WEBKIT_LIB_PATH}/libWTF.a
+      ${WEBKIT_LIB_PATH}/libbmalloc.a
+    )
+  endif()
+
+  if(WIN32)
+    add_custom_target(jsc ALL
+      COMMAND ${CMAKE_COMMAND} --build ${WEBKIT_PATH} --config ${WEBKIT_BUILD_TYPE} --target jsc
+      BYPRODUCTS ${JSC_BYPRODUCTS}
+      COMMENT "Building JSC (${WEBKIT_PATH})"
+    )
+  else()
+    add_custom_target(jsc ALL
+      COMMAND ${CMAKE_COMMAND} --build ${WEBKIT_PATH} --config ${WEBKIT_BUILD_TYPE} --target jsc
+      BYPRODUCTS ${JSC_BYPRODUCTS}
+      COMMENT "Building JSC (${WEBKIT_PATH})"
+      USES_TERMINAL
+    )
+  endif()
+
+  include_directories(
+    ${WEBKIT_PATH}
+    ${WEBKIT_PATH}/JavaScriptCore/Headers
+    ${WEBKIT_PATH}/JavaScriptCore/Headers/JavaScriptCore
+    ${WEBKIT_PATH}/JavaScriptCore/PrivateHeaders
+    ${WEBKIT_PATH}/bmalloc/Headers
+    ${WEBKIT_PATH}/WTF/Headers
+    ${WEBKIT_PATH}/JavaScriptCore/PrivateHeaders/JavaScriptCore
+  )
+
+  # On Windows, add ICU headers from the local ICU build
+  if(WIN32)
+    include_directories(${ICU_LOCAL_ROOT}/include)
   endif()
 
   # After this point, only prebuilt WebKit is supported
@@ -52,7 +197,7 @@ else()
   message(FATAL_ERROR "Unsupported operating system: ${CMAKE_SYSTEM_NAME}")
 endif()
 
-if(CMAKE_SYSTEM_PROCESSOR MATCHES "arm64|aarch64")
+if(CMAKE_SYSTEM_PROCESSOR MATCHES "arm64|ARM64|aarch64|AARCH64")
   set(WEBKIT_ARCH "arm64")
 elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "amd64|x86_64|x64|AMD64")
   set(WEBKIT_ARCH "amd64")
@@ -81,7 +226,14 @@ endif()
 
 setx(WEBKIT_NAME bun-webkit-${WEBKIT_OS}-${WEBKIT_ARCH}${WEBKIT_SUFFIX})
 set(WEBKIT_FILENAME ${WEBKIT_NAME}.tar.gz)
-setx(WEBKIT_DOWNLOAD_URL https://github.com/oven-sh/WebKit/releases/download/autobuild-${WEBKIT_VERSION}/${WEBKIT_FILENAME})
+
+if(WEBKIT_VERSION MATCHES "^autobuild-")
+  set(WEBKIT_TAG ${WEBKIT_VERSION})
+else()
+  set(WEBKIT_TAG autobuild-${WEBKIT_VERSION})
+endif()
+
+setx(WEBKIT_DOWNLOAD_URL https://github.com/oven-sh/WebKit/releases/download/${WEBKIT_TAG}/${WEBKIT_FILENAME})
 
 if(EXISTS ${WEBKIT_PATH}/package.json)
   file(READ ${WEBKIT_PATH}/package.json WEBKIT_PACKAGE_JSON)

cmake/tools/SetupZig.cmake

@@ -1,4 +1,4 @@
-if(CMAKE_SYSTEM_PROCESSOR MATCHES "arm64|aarch64")
+if(CMAKE_SYSTEM_PROCESSOR MATCHES "arm64|ARM64|aarch64|AARCH64")
   set(DEFAULT_ZIG_ARCH "aarch64")
 elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "amd64|x86_64|x64|AMD64")
   set(DEFAULT_ZIG_ARCH "x86_64")

docs/bundler/bytecode.mdx

@@ -7,9 +7,9 @@ Bytecode caching is a build-time optimization that dramatically improves applica
 
 ## Usage
 
-### Basic usage
+### Basic usage (CommonJS)
 
-Enable bytecode caching with the `--bytecode` flag:
+Enable bytecode caching with the `--bytecode` flag. Without `--format`, this defaults to CommonJS:
 
 ```bash terminal icon="terminal"
 bun build ./index.ts --target=bun --bytecode --outdir=./dist
@@ -17,7 +17,7 @@ bun build ./index.ts --target=bun --bytecode --outdir=./dist
 
 This generates two files:
 
-- `dist/index.js` - Your bundled JavaScript
+- `dist/index.js` - Your bundled JavaScript (CommonJS)
 - `dist/index.jsc` - The bytecode cache file
 
 At runtime, Bun automatically detects and uses the `.jsc` file:
@@ -28,14 +28,24 @@ bun ./dist/index.js  # Automatically uses index.jsc
 
 ### With standalone executables
 
-When creating executables with `--compile`, bytecode is embedded into the binary:
+When creating executables with `--compile`, bytecode is embedded into the binary. Both ESM and CommonJS formats are supported:
 
 ```bash terminal icon="terminal"
+# ESM (requires --compile)
+bun build ./cli.ts --compile --bytecode --format=esm --outfile=mycli
+
+# CommonJS (works with or without --compile)
 bun build ./cli.ts --compile --bytecode --outfile=mycli
 ```
 
 The resulting executable contains both the code and bytecode, giving you maximum performance in a single file.
 
+### ESM bytecode
+
+ESM bytecode requires `--compile` because Bun embeds module metadata (import/export information) in the compiled binary. This metadata allows the JavaScript engine to skip parsing entirely at runtime.
+
+Without `--compile`, ESM bytecode would still require parsing the source to analyze module dependencies—defeating the purpose of bytecode caching.
+
 ### Combining with other optimizations
 
 Bytecode works great with minification and source maps:
@@ -90,35 +100,9 @@ Larger applications benefit more because they have more code to parse.
 - ❌ **Code that runs once**
 - ❌ **Development builds**
 - ❌ **Size-constrained environments**
-- ❌ **Code with top-level await** (not supported)
 
 ## Limitations
 
-### CommonJS only
-
-Bytecode caching currently works with CommonJS output format. Bun's bundler automatically converts most ESM code to CommonJS, but **top-level await** is the exception:
-
-```js
-// This prevents bytecode caching
-const data = await fetch("https://api.example.com");
-export default data;
-```
-
-**Why**: Top-level await requires async module evaluation, which can't be represented in CommonJS. The module graph becomes asynchronous, and the CommonJS wrapper function model breaks down.
-
-**Workaround**: Move async initialization into a function:
-
-```js
-async function init() {
-  const data = await fetch("https://api.example.com");
-  return data;
-}
-
-export default init;
-```
-
-Now the module exports a function that the consumer can await when needed.
-
 ### Version compatibility
 
 Bytecode is **not portable across Bun versions**. The bytecode format is tied to JavaScriptCore's internal representation, which changes between versions.
@@ -236,8 +220,6 @@ It's normal for it it to log a cache miss multiple times since Bun doesn't curre
 - Compressing `.jsc` files for network transfer (gzip/brotli)
 - Evaluating if the startup performance gain is worth the size increase
 
-**Top-level await**: Not supported. Refactor to use async initialization functions.
-
 ## What is bytecode?
 
 When you run JavaScript, the JavaScript engine doesn't execute your source code directly. Instead, it goes through several steps:

docs/bundler/executables.mdx

@@ -322,10 +322,7 @@ Using bytecode compilation, `tsc` starts 2x faster:
 
 Bytecode compilation moves parsing overhead for large input files from runtime to bundle time. Your app starts faster, in exchange for making the `bun build` command a little slower. It doesn't obscure source code.
 
-<Warning>
-  **Experimental:** Bytecode compilation is an experimental feature. Only `cjs` format is supported (which means no
-  top-level-await). Let us know if you run into any issues!
-</Warning>
+<Note>Bytecode compilation supports both `cjs` and `esm` formats when used with `--compile`.</Note>
 
 ### What do these flags do?
 
@@ -365,6 +362,23 @@ The `--bytecode` argument enables bytecode compilation. Every time you run JavaS
 console.log(process.execArgv); // ["--smol", "--user-agent=MyBot"]
 ```
 
+### Runtime arguments via `BUN_OPTIONS`
+
+The `BUN_OPTIONS` environment variable is applied to standalone executables, allowing you to pass runtime flags without recompiling:
+
+```bash terminal icon="terminal"
+# Enable CPU profiling on a compiled executable
+BUN_OPTIONS="--cpu-prof" ./myapp
+
+# Enable heap profiling with markdown output
+BUN_OPTIONS="--heap-prof-md" ./myapp
+
+# Combine multiple flags
+BUN_OPTIONS="--smol --cpu-prof-md" ./myapp
+```
+
+This is useful for debugging or profiling production executables without rebuilding them.
+
 ---
 
 ## Automatic config loading

docs/bundler/index.mdx

@@ -1333,6 +1333,50 @@ Generate metadata about the build in a structured format. The metafile contains
   </Tab>
 </Tabs>
 
+#### Markdown metafile
+
+Use `--metafile-md` to generate a markdown metafile, which is LLM-friendly and easy to read in the terminal:
+
+```bash terminal icon="terminal"
+bun build ./src/index.ts --outdir ./dist --metafile-md ./dist/meta.md
+```
+
+Both `--metafile` and `--metafile-md` can be used together:
+
+```bash terminal icon="terminal"
+bun build ./src/index.ts --outdir ./dist --metafile ./dist/meta.json --metafile-md ./dist/meta.md
+```
+
+#### `metafile` option formats
+
+In the JavaScript API, `metafile` accepts several forms:
+
+```ts title="build.ts" icon="/icons/typescript.svg"
+// Boolean — include metafile in the result object
+await Bun.build({
+  entrypoints: ["./src/index.ts"],
+  outdir: "./dist",
+  metafile: true,
+});
+
+// String — write JSON metafile to a specific path
+await Bun.build({
+  entrypoints: ["./src/index.ts"],
+  outdir: "./dist",
+  metafile: "./dist/meta.json",
+});
+
+// Object — specify separate paths for JSON and markdown output
+await Bun.build({
+  entrypoints: ["./src/index.ts"],
+  outdir: "./dist",
+  metafile: {
+    json: "./dist/meta.json",
+    markdown: "./dist/meta.md",
+  },
+});
+```
+
 The metafile structure contains:
 
 ```ts
@@ -1464,22 +1508,43 @@ BuildArtifact (entry-point) {
 
 ## Bytecode
 
-The `bytecode: boolean` option can be used to generate bytecode for any JavaScript/TypeScript entrypoints. This can greatly improve startup times for large applications. Only supported for `"cjs"` format, only supports `"target": "bun"` and dependent on a matching version of Bun. This adds a corresponding `.jsc` file for each entrypoint.
+The `bytecode: boolean` option can be used to generate bytecode for any JavaScript/TypeScript entrypoints. This can greatly improve startup times for large applications. Requires `"target": "bun"` and is dependent on a matching version of Bun.
+
+- **CommonJS**: Works with or without `compile: true`. Generates a `.jsc` file alongside each entrypoint.
+- **ESM**: Requires `compile: true`. Bytecode and module metadata are embedded in the standalone executable.
+
+Without an explicit `format`, bytecode defaults to CommonJS.
 
 <Tabs>
   <Tab title="JavaScript">
     ```ts title="build.ts" icon="/icons/typescript.svg"
+    // CommonJS bytecode (generates .jsc files)
     await Bun.build({
       entrypoints: ["./index.tsx"],
       outdir: "./out",
       bytecode: true,
     })
+
+    // ESM bytecode (requires compile)
+    await Bun.build({
+      entrypoints: ["./index.tsx"],
+      outfile: "./mycli",
+      bytecode: true,
+      format: "esm",
+      compile: true,
+    })
     ```
+
   </Tab>
   <Tab title="CLI">
     ```bash terminal icon="terminal"
+    # CommonJS bytecode
     bun build ./index.tsx --outdir ./out --bytecode
+
+    # ESM bytecode (requires --compile)
+    bun build ./index.tsx --outfile ./mycli --bytecode --format=esm --compile
     ```
+
   </Tab>
 </Tabs>
 
@@ -1646,7 +1711,10 @@ interface BuildConfig {
    * start times, but will make the final output larger and slightly increase
    * memory usage.
    *
-   * Bytecode is currently only supported for CommonJS (`format: "cjs"`).
+   * - CommonJS: works with or without `compile: true`
+   * - ESM: requires `compile: true`
+   *
+   * Without an explicit `format`, defaults to CommonJS.
    *
    * Must be `target: "bun"`
    * @default false

docs/docs.json

@@ -150,6 +150,9 @@
               "/runtime/secrets",
               "/runtime/console",
               "/runtime/yaml",
+              "/runtime/markdown",
+              "/runtime/json5",
+              "/runtime/jsonl",
               "/runtime/html-rewriter",
               "/runtime/hashing",
               "/runtime/glob",
@@ -497,6 +500,7 @@
               "/guides/runtime/import-json",
               "/guides/runtime/import-toml",
               "/guides/runtime/import-yaml",
+              "/guides/runtime/import-json5",
               "/guides/runtime/import-html",
               "/guides/util/import-meta-dir",
               "/guides/util/import-meta-file",

docs/guides/runtime/import-json5.mdx

@@ -0,0 +1,74 @@
+---
+title: Import a JSON5 file
+sidebarTitle: Import JSON5
+mode: center
+---
+
+Bun natively supports `.json5` imports.
+
+```json5 config.json5 icon="file-code"
+{
+  // Comments are allowed
+  database: {
+    host: "localhost",
+    port: 5432,
+    name: "myapp",
+  },
+
+  server: {
+    port: 3000,
+    timeout: 30,
+  },
+
+  features: {
+    auth: true,
+    rateLimit: true,
+  },
+}
+```
+
+---
+
+Import the file like any other source file.
+
+```ts config.ts icon="/icons/typescript.svg"
+import config from "./config.json5";
+
+config.database.host; // => "localhost"
+config.server.port; // => 3000
+config.features.auth; // => true
+```
+
+---
+
+You can also use named imports to destructure top-level properties:
+
+```ts config.ts icon="/icons/typescript.svg"
+import { database, server, features } from "./config.json5";
+
+console.log(database.name); // => "myapp"
+console.log(server.timeout); // => 30
+console.log(features.rateLimit); // => true
+```
+
+---
+
+For parsing JSON5 strings at runtime, use `Bun.JSON5.parse()`:
+
+```ts config.ts icon="/icons/typescript.svg"
+const data = JSON5.parse(`{
+  name: 'John Doe',
+  age: 30,
+  hobbies: [
+    'reading',
+    'coding',
+  ],
+}`);
+
+console.log(data.name); // => "John Doe"
+console.log(data.hobbies); // => ["reading", "coding"]
+```
+
+---
+
+See [Docs > API > JSON5](/runtime/json5) for complete documentation on JSON5 support in Bun.

docs/pm/cli/install.mdx

@@ -26,21 +26,6 @@ The `bun` CLI contains a Node.js-compatible package manager designed to be a dra
 
 </Note>
 
-<Accordion title="For Linux users">
-The recommended minimum Linux Kernel version is 5.6. If you're on Linux kernel 5.1 - 5.5, `bun install` will work, but HTTP requests will be slow due to a lack of support for io_uring's `connect()` operation.
-
-If you're using Ubuntu 20.04, here's how to install a [newer kernel](https://wiki.ubuntu.com/Kernel/LTSEnablementStack):
-
-```bash terminal icon="terminal"
-# If this returns a version >= 5.6, you don't need to do anything
-uname -r
-
-# Install the official Ubuntu hardware enablement kernel
-sudo apt install --install-recommends linux-generic-hwe-20.04
-```
-
-</Accordion>
-
 To install all dependencies of a project:
 
 ```bash terminal icon="terminal"

docs/pm/filter.mdx

@@ -97,6 +97,31 @@ Filters respect your [workspace configuration](/pm/workspaces): If you have a `p
 bun run --filter foo myscript
 ```
 
+### Parallel and sequential mode
+
+Combine `--filter` or `--workspaces` with `--parallel` or `--sequential` to run scripts across workspace packages with Foreman-style prefixed output:
+
+```bash terminal icon="terminal"
+# Run "build" in all matching packages concurrently
+bun run --parallel --filter '*' build
+
+# Run "build" in all workspace packages sequentially
+bun run --sequential --workspaces build
+
+# Run glob-matched scripts across all packages
+bun run --parallel --filter '*' "build:*"
+
+# Continue running even if one package's script fails
+bun run --parallel --no-exit-on-error --filter '*' test
+
+# Run multiple scripts across all packages
+bun run --parallel --filter '*' build lint
+```
+
+Each line of output is prefixed with the package and script name (e.g. `pkg-a:build | ...`). Without `--filter`/`--workspaces`, the prefix is just the script name (e.g. `build | ...`). When a package's `package.json` has no `name` field, the relative path from the workspace root is used instead.
+
+Use `--if-present` with `--workspaces` to skip packages that don't have the requested script instead of erroring.
+
 ### Dependency Order
 
 Bun will respect package dependency order when running scripts. Say you have a package `foo` that depends on another package `bar` in your workspace, and both packages have a `build` script. When you run `bun --filter '*' build`, you will notice that `foo` will only start running once `bar` is done.

docs/project/benchmarking.mdx

@@ -227,6 +227,26 @@ bun --cpu-prof script.js
 
 This generates a `.cpuprofile` file you can open in Chrome DevTools (Performance tab → Load profile) or VS Code's CPU profiler.
 
+### Markdown output
+
+Use `--cpu-prof-md` to generate a markdown CPU profile, which is grep-friendly and designed for LLM analysis:
+
+```sh terminal icon="terminal"
+bun --cpu-prof-md script.js
+```
+
+Both `--cpu-prof` and `--cpu-prof-md` can be used together to generate both formats at once:
+
+```sh terminal icon="terminal"
+bun --cpu-prof --cpu-prof-md script.js
+```
+
+You can also trigger profiling via the `BUN_OPTIONS` environment variable:
+
+```sh terminal icon="terminal"
+BUN_OPTIONS="--cpu-prof-md" bun script.js
+```
+
 ### Options
 
 ```sh terminal icon="terminal"
@@ -234,8 +254,43 @@ bun --cpu-prof --cpu-prof-name my-profile.cpuprofile script.js
 bun --cpu-prof --cpu-prof-dir ./profiles script.js
 ```
 
-| Flag                         | Description          |
-| ---------------------------- | -------------------- |
-| `--cpu-prof`                 | Enable profiling     |
-| `--cpu-prof-name <filename>` | Set output filename  |
-| `--cpu-prof-dir <dir>`       | Set output directory |
+| Flag                         | Description                                                 |
+| ---------------------------- | ----------------------------------------------------------- |
+| `--cpu-prof`                 | Generate a `.cpuprofile` JSON file (Chrome DevTools format) |
+| `--cpu-prof-md`              | Generate a markdown CPU profile (grep/LLM-friendly)         |
+| `--cpu-prof-name <filename>` | Set output filename                                         |
+| `--cpu-prof-dir <dir>`       | Set output directory                                        |
+
+## Heap profiling
+
+Generate heap snapshots on exit to analyze memory usage and find memory leaks.
+
+```sh terminal icon="terminal"
+bun --heap-prof script.js
+```
+
+This generates a V8 `.heapsnapshot` file that can be loaded in Chrome DevTools (Memory tab → Load).
+
+### Markdown output
+
+Use `--heap-prof-md` to generate a markdown heap profile for CLI analysis:
+
+```sh terminal icon="terminal"
+bun --heap-prof-md script.js
+```
+
+<Note>If both `--heap-prof` and `--heap-prof-md` are specified, the markdown format is used.</Note>
+
+### Options
+
+```sh terminal icon="terminal"
+bun --heap-prof --heap-prof-name my-snapshot.heapsnapshot script.js
+bun --heap-prof --heap-prof-dir ./profiles script.js
+```
+
+| Flag                          | Description                                |
+| ----------------------------- | ------------------------------------------ |
+| `--heap-prof`                 | Generate a V8 `.heapsnapshot` file on exit |
+| `--heap-prof-md`              | Generate a markdown heap profile on exit   |
+| `--heap-prof-name <filename>` | Set output filename                        |
+| `--heap-prof-dir <dir>`       | Set output directory                       |

docs/project/building-windows.mdx

@@ -35,7 +35,7 @@ winget install "Visual Studio Community 2022" --override "--add Microsoft.Visual
 
 After Visual Studio, you need the following:
 
-- LLVM 19.1.7
+- LLVM (19.1.7 for x64, 21.1.8 for ARM64)
 - Go
 - Rust
 - NASM
@@ -47,25 +47,35 @@ After Visual Studio, you need the following:
 
 [Scoop](https://scoop.sh) can be used to install these remaining tools easily.
 
-```ps1 Scoop
+```ps1 Scoop (x64)
 irm https://get.scoop.sh | iex
 scoop install nodejs-lts go rust nasm ruby perl ccache
 # scoop seems to be buggy if you install llvm and the rest at the same time
 scoop install llvm@19.1.7
 ```
 
+For Windows ARM64, download LLVM 21.1.8 directly from GitHub releases (first version with ARM64 Windows builds):
+
+```ps1 ARM64
+# Download and install LLVM for ARM64
+Invoke-WebRequest -Uri "https://github.com/llvm/llvm-project/releases/download/llvmorg-21.1.8/LLVM-21.1.8-woa64.exe" -OutFile "$env:TEMP\LLVM-21.1.8-woa64.exe"
+Start-Process -FilePath "$env:TEMP\LLVM-21.1.8-woa64.exe" -ArgumentList "/S" -Wait
+```
+
 <Note>
   Please do not use WinGet/other package manager for these, as you will likely install Strawberry Perl instead of a more
   minimal installation of Perl. Strawberry Perl includes many other utilities that get installed into `$Env:PATH` that
   will conflict with MSVC and break the build.
 </Note>
 
-If you intend on building WebKit locally (optional), you should install these packages:
+If you intend on building WebKit locally (optional, x64 only), you should install these packages:
 
 ```ps1 Scoop
 scoop install make cygwin python
 ```
 
+<Note>Cygwin is not required for ARM64 builds as WebKit is provided as a pre-built binary.</Note>
+
 From here on out, it is **expected you use a PowerShell Terminal with `.\scripts\vs-shell.ps1` sourced**. This script is available in the Bun repository and can be loaded by executing it:
 
 ```ps1

docs/project/contributing.mdx

@@ -266,18 +266,13 @@ git clone https://github.com/oven-sh/WebKit vendor/WebKit
 # Check out the commit hash specified in `set(WEBKIT_VERSION <commit_hash>)` in cmake/tools/SetupWebKit.cmake
 git -C vendor/WebKit checkout <commit_hash>
 
-# Make a debug build of JSC. This will output build artifacts in ./vendor/WebKit/WebKitBuild/Debug
-# Optionally, you can use `bun run jsc:build` for a release build
-bun run jsc:build:debug && rm vendor/WebKit/WebKitBuild/Debug/JavaScriptCore/DerivedSources/inspector/InspectorProtocolObjects.h
-
-# After an initial run of `make jsc-debug`, you can rebuild JSC with:
-cmake --build vendor/WebKit/WebKitBuild/Debug --target jsc && rm vendor/WebKit/WebKitBuild/Debug/JavaScriptCore/DerivedSources/inspector/InspectorProtocolObjects.h
-
-# Build bun with the local JSC build
+# Build bun with the local JSC build — this automatically configures and builds JSC
 bun run build:local
 ```
 
-Using `bun run build:local` will build Bun in the `./build/debug-local` directory (instead of `./build/debug`), you'll have to change a couple of places to use this new directory:
+`bun run build:local` handles everything: configuring JSC, building JSC, and building Bun. On subsequent runs, JSC will incrementally rebuild if any WebKit sources changed. `ninja -Cbuild/debug-local` also works after the first build, and will build Bun+JSC.
+
+The build output goes to `./build/debug-local` (instead of `./build/debug`), so you'll need to update a couple of places:
 
 - The first line in `src/js/builtins.d.ts`
 - The `CompilationDatabase` line in `.clangd` config should be `CompilationDatabase: build/debug-local`
@@ -288,7 +283,7 @@ Note that the WebKit folder, including build artifacts, is 8GB+ in size.
 
 If you are using a JSC debug build and using VScode, make sure to run the `C/C++: Select a Configuration` command to configure intellisense to find the debug headers.
 
-Note that if you change make changes to our [WebKit fork](https://github.com/oven-sh/WebKit), you will also have to change `SetupWebKit.cmake` to point to the commit hash.
+Note that if you make changes to our [WebKit fork](https://github.com/oven-sh/WebKit), you will also have to change `SetupWebKit.cmake` to point to the commit hash.
 
 ## Troubleshooting
 

docs/runtime/bun-apis.mdx

@@ -55,5 +55,5 @@ Click the link in the right column to jump to the associated documentation.
 | Stream Processing                | [`Bun.readableStreamTo*()`](/runtime/utils#bun-readablestreamto), `Bun.readableStreamToBytes()`, `Bun.readableStreamToBlob()`, `Bun.readableStreamToFormData()`, `Bun.readableStreamToJSON()`, `Bun.readableStreamToArray()`                                                                                           |
 | Memory & Buffer Management       | `Bun.ArrayBufferSink`, `Bun.allocUnsafe`, `Bun.concatArrayBuffers`                                                                                                                                                                                                                                                     |
 | Module Resolution                | [`Bun.resolveSync()`](/runtime/utils#bun-resolvesync)                                                                                                                                                                                                                                                                  |
-| Parsing & Formatting             | [`Bun.semver`](/runtime/semver), `Bun.TOML.parse`, [`Bun.color`](/runtime/color)                                                                                                                                                                                                                                       |
+| Parsing & Formatting             | [`Bun.semver`](/runtime/semver), `Bun.TOML.parse`, [`Bun.markdown`](/runtime/markdown), [`Bun.color`](/runtime/color)                                                                                                                                                                                                  |
 | Low-level / Internals            | `Bun.mmap`, `Bun.gc`, `Bun.generateHeapSnapshot`, [`bun:jsc`](https://bun.com/reference/bun/jsc)                                                                                                                                                                                                                       |

docs/runtime/file-types.mdx

@@ -5,7 +5,7 @@ description: "File types and loaders supported by Bun's bundler and runtime"
 
 The Bun bundler implements a set of default loaders out of the box. As a rule of thumb, the bundler and the runtime both support the same set of file types out of the box.
 
-`.js` `.cjs` `.mjs` `.mts` `.cts` `.ts` `.tsx` `.jsx` `.css` `.json` `.jsonc` `.toml` `.yaml` `.yml` `.txt` `.wasm` `.node` `.html` `.sh`
+`.js` `.cjs` `.mjs` `.mts` `.cts` `.ts` `.tsx` `.jsx` `.css` `.json` `.jsonc` `.json5` `.toml` `.yaml` `.yml` `.txt` `.wasm` `.node` `.html` `.sh`
 
 Bun uses the file extension to determine which built-in _loader_ should be used to parse the file. Every loader has a name, such as `js`, `tsx`, or `json`. These names are used when building [plugins](/bundler/plugins) that extend Bun with custom loaders.
 
@@ -197,6 +197,53 @@ export default {
 
 </CodeGroup>
 
+### `json5`
+
+**JSON5 loader**. Default for `.json5`.
+
+JSON5 files can be directly imported. Bun will parse them with its fast native JSON5 parser. JSON5 is a superset of JSON that supports comments, trailing commas, unquoted keys, single-quoted strings, and more.
+
+```ts
+import config from "./config.json5";
+console.log(config);
+
+// via import attribute:
+import data from "./data.txt" with { type: "json5" };
+```
+
+During bundling, the parsed JSON5 is inlined into the bundle as a JavaScript object.
+
+```ts
+var config = {
+  name: "my-app",
+  version: "1.0.0",
+  // ...other fields
+};
+```
+
+If a `.json5` file is passed as an entrypoint, it will be converted to a `.js` module that `export default`s the parsed object.
+
+<CodeGroup>
+
+```json5 Input
+{
+  // Configuration
+  name: "John Doe",
+  age: 35,
+  email: "johndoe@example.com",
+}
+```
+
+```ts Output
+export default {
+  name: "John Doe",
+  age: 35,
+  email: "johndoe@example.com",
+};
+```
+
+</CodeGroup>
+
 ### `text`
 
 **Text loader**. Default for `.txt`.

docs/runtime/json5.mdx

@@ -0,0 +1,271 @@
+---
+title: JSON5
+description: Use Bun's built-in support for JSON5 files through both runtime APIs and bundler integration
+---
+
+In Bun, JSON5 is a first-class citizen alongside JSON, TOML, and YAML. You can:
+
+- Parse and stringify JSON5 with `Bun.JSON5.parse` and `Bun.JSON5.stringify`
+- `import` & `require` JSON5 files as modules at runtime (including hot reloading & watch mode support)
+- `import` & `require` JSON5 files in frontend apps via Bun's bundler
+
+---
+
+## Conformance
+
+Bun's JSON5 parser passes 100% of the [official JSON5 test suite](https://github.com/json5/json5-tests). The parser is written in Zig for optimal performance. You can view our [translated test suite](https://github.com/oven-sh/bun/blob/main/test/js/bun/json5/json5-test-suite.test.ts) to see every test case.
+
+---
+
+## Runtime API
+
+### `Bun.JSON5.parse()`
+
+Parse a JSON5 string into a JavaScript value.
+
+```ts
+import { JSON5 } from "bun";
+
+const data = JSON5.parse(`{
+  // JSON5 supports comments
+  name: 'my-app',
+  version: '1.0.0',
+  debug: true,
+
+  // trailing commas are allowed
+  tags: ['web', 'api',],
+}`);
+
+console.log(data);
+// {
+//   name: "my-app",
+//   version: "1.0.0",
+//   debug: true,
+//   tags: ["web", "api"]
+// }
+```
+
+#### Supported JSON5 Features
+
+JSON5 is a superset of JSON based on ECMAScript 5.1 syntax. It supports:
+
+- **Comments**: single-line (`//`) and multi-line (`/* */`)
+- **Trailing commas**: in objects and arrays
+- **Unquoted keys**: valid ECMAScript 5.1 identifiers can be used as keys
+- **Single-quoted strings**: in addition to double-quoted strings
+- **Multi-line strings**: using backslash line continuations
+- **Hex numbers**: `0xFF`
+- **Leading & trailing decimal points**: `.5` and `5.`
+- **Infinity and NaN**: positive and negative
+- **Explicit plus sign**: `+42`
+
+```ts
+const data = JSON5.parse(`{
+  // Unquoted keys
+  unquoted: 'keys work',
+
+  // Single and double quotes
+  single: 'single-quoted',
+  double: "double-quoted",
+
+  // Trailing commas
+  trailing: 'comma',
+
+  // Special numbers
+  hex: 0xDEADbeef,
+  half: .5,
+  to: Infinity,
+  nan: NaN,
+
+  // Multi-line strings
+  multiline: 'line 1 \
+line 2',
+}`);
+```
+
+#### Error Handling
+
+`Bun.JSON5.parse()` throws a `SyntaxError` if the input is invalid JSON5:
+
+```ts
+try {
+  JSON5.parse("{invalid}");
+} catch (error) {
+  console.error("Failed to parse JSON5:", error.message);
+}
+```
+
+### `Bun.JSON5.stringify()`
+
+Stringify a JavaScript value to a JSON5 string.
+
+```ts
+import { JSON5 } from "bun";
+
+const str = JSON5.stringify({ name: "my-app", version: "1.0.0" });
+console.log(str);
+// {name:'my-app',version:'1.0.0'}
+```
+
+#### Pretty Printing
+
+Pass a `space` argument to format the output with indentation:
+
+```ts
+const pretty = JSON5.stringify(
+  {
+    name: "my-app",
+    debug: true,
+    tags: ["web", "api"],
+  },
+  null,
+  2,
+);
+
+console.log(pretty);
+// {
+//   name: 'my-app',
+//   debug: true,
+//   tags: [
+//     'web',
+//     'api',
+//   ],
+// }
+```
+
+The `space` argument can be a number (number of spaces) or a string (used as the indent character):
+
+```ts
+// Tab indentation
+JSON5.stringify(data, null, "\t");
+```
+
+#### Special Values
+
+Unlike `JSON.stringify`, `JSON5.stringify` preserves special numeric values:
+
+```ts
+JSON5.stringify({ inf: Infinity, ninf: -Infinity, nan: NaN });
+// {inf:Infinity,ninf:-Infinity,nan:NaN}
+```
+
+---
+
+## Module Import
+
+### ES Modules
+
+You can import JSON5 files directly as ES modules:
+
+```json5 config.json5
+{
+  // Database configuration
+  database: {
+    host: "localhost",
+    port: 5432,
+    name: "myapp",
+  },
+
+  features: {
+    auth: true,
+    rateLimit: true,
+    analytics: false,
+  },
+}
+```
+
+#### Default Import
+
+```ts app.ts icon="/icons/typescript.svg"
+import config from "./config.json5";
+
+console.log(config.database.host); // "localhost"
+console.log(config.features.auth); // true
+```
+
+#### Named Imports
+
+You can destructure top-level properties as named imports:
+
+```ts app.ts icon="/icons/typescript.svg"
+import { database, features } from "./config.json5";
+
+console.log(database.host); // "localhost"
+console.log(features.rateLimit); // true
+```
+
+### CommonJS
+
+JSON5 files can also be required in CommonJS:
+
+```ts app.ts icon="/icons/typescript.svg"
+const config = require("./config.json5");
+console.log(config.database.name); // "myapp"
+
+// Destructuring also works
+const { database, features } = require("./config.json5");
+```
+
+---
+
+## Hot Reloading with JSON5
+
+When you run your application with `bun --hot`, changes to JSON5 files are automatically detected and reloaded:
+
+```json5 config.json5
+{
+  server: {
+    port: 3000,
+    host: "localhost",
+  },
+  features: {
+    debug: true,
+    verbose: false,
+  },
+}
+```
+
+```ts server.ts icon="/icons/typescript.svg"
+import { server, features } from "./config.json5";
+
+Bun.serve({
+  port: server.port,
+  hostname: server.host,
+  fetch(req) {
+    if (features.verbose) {
+      console.log(`${req.method} ${req.url}`);
+    }
+    return new Response("Hello World");
+  },
+});
+```
+
+Run with hot reloading:
+
+```bash terminal icon="terminal"
+bun --hot server.ts
+```
+
+---
+
+## Bundler Integration
+
+When you import JSON5 files and bundle with Bun, the JSON5 is parsed at build time and included as a JavaScript module:
+
+```bash terminal icon="terminal"
+bun build app.ts --outdir=dist
+```
+
+This means:
+
+- Zero runtime JSON5 parsing overhead in production
+- Smaller bundle sizes
+- Tree-shaking support for unused properties (named imports)
+
+### Dynamic Imports
+
+JSON5 files can be dynamically imported:
+
+```ts
+const config = await import("./config.json5");
+```

docs/runtime/jsonl.mdx

@@ -0,0 +1,188 @@
+---
+title: JSONL
+description: Parse newline-delimited JSON (JSONL) with Bun's built-in streaming parser
+---
+
+Bun has built-in support for parsing [JSONL](https://jsonlines.org/) (newline-delimited JSON), where each line is a separate JSON value. The parser is implemented in C++ using JavaScriptCore's optimized JSON parser and supports streaming use cases.
+
+```ts
+const results = Bun.JSONL.parse('{"name":"Alice"}\n{"name":"Bob"}\n');
+// [{ name: "Alice" }, { name: "Bob" }]
+```
+
+---
+
+## `Bun.JSONL.parse()`
+
+Parse a complete JSONL input and return an array of all parsed values.
+
+```ts
+import { JSONL } from "bun";
+
+const input = '{"id":1,"name":"Alice"}\n{"id":2,"name":"Bob"}\n{"id":3,"name":"Charlie"}\n';
+const records = JSONL.parse(input);
+console.log(records);
+// [
+//   { id: 1, name: "Alice" },
+//   { id: 2, name: "Bob" },
+//   { id: 3, name: "Charlie" }
+// ]
+```
+
+Input can be a string or a `Uint8Array`:
+
+```ts
+const buffer = new TextEncoder().encode('{"a":1}\n{"b":2}\n');
+const results = Bun.JSONL.parse(buffer);
+// [{ a: 1 }, { b: 2 }]
+```
+
+When passed a `Uint8Array`, a UTF-8 BOM at the start of the buffer is automatically skipped.
+
+### Error handling
+
+If the input contains invalid JSON, `Bun.JSONL.parse()` throws a `SyntaxError`:
+
+```ts
+try {
+  Bun.JSONL.parse('{"valid":true}\n{invalid}\n');
+} catch (error) {
+  console.error(error); // SyntaxError: Failed to parse JSONL
+}
+```
+
+---
+
+## `Bun.JSONL.parseChunk()`
+
+For streaming scenarios, `parseChunk` parses as many complete values as possible from the input and reports how far it got. This is useful when receiving data incrementally (e.g., from a network stream) and you need to know where to resume parsing.
+
+```ts
+const chunk = '{"id":1}\n{"id":2}\n{"id":3';
+
+const result = Bun.JSONL.parseChunk(chunk);
+console.log(result.values); // [{ id: 1 }, { id: 2 }]
+console.log(result.read); // 17 — characters consumed
+console.log(result.done); // false — incomplete value remains
+console.log(result.error); // null — no parse error
+```
+
+### Return value
+
+`parseChunk` returns an object with four properties:
+
+| Property | Type                  | Description                                                             |
+| -------- | --------------------- | ----------------------------------------------------------------------- |
+| `values` | `any[]`               | Array of successfully parsed JSON values                                |
+| `read`   | `number`              | Number of bytes (for `Uint8Array`) or characters (for strings) consumed |
+| `done`   | `boolean`             | `true` if the entire input was consumed with no remaining data          |
+| `error`  | `SyntaxError \| null` | Parse error, or `null` if no error occurred                             |
+
+### Streaming example
+
+Use `read` to slice off consumed input and carry forward the remainder:
+
+```ts
+let buffer = "";
+
+async function processStream(stream: ReadableStream<string>) {
+  for await (const chunk of stream) {
+    buffer += chunk;
+    const result = Bun.JSONL.parseChunk(buffer);
+
+    for (const value of result.values) {
+      handleRecord(value);
+    }
+
+    // Keep only the unconsumed portion
+    buffer = buffer.slice(result.read);
+  }
+
+  // Handle any remaining data
+  if (buffer.length > 0) {
+    const final = Bun.JSONL.parseChunk(buffer);
+    for (const value of final.values) {
+      handleRecord(value);
+    }
+    if (final.error) {
+      console.error("Parse error in final chunk:", final.error.message);
+    }
+  }
+}
+```
+
+### Byte offsets with `Uint8Array`
+
+When the input is a `Uint8Array`, you can pass optional `start` and `end` byte offsets:
+
+```ts
+const buf = new TextEncoder().encode('{"a":1}\n{"b":2}\n{"c":3}\n');
+
+// Parse starting from byte 8
+const result = Bun.JSONL.parseChunk(buf, 8);
+console.log(result.values); // [{ b: 2 }, { c: 3 }]
+console.log(result.read); // 24
+
+// Parse a specific range
+const partial = Bun.JSONL.parseChunk(buf, 0, 8);
+console.log(partial.values); // [{ a: 1 }]
+```
+
+The `read` value is always a byte offset into the original buffer, making it easy to use with `TypedArray.subarray()` for zero-copy streaming:
+
+```ts
+let buf = new Uint8Array(0);
+
+async function processBinaryStream(stream: ReadableStream<Uint8Array>) {
+  for await (const chunk of stream) {
+    // Append chunk to buffer
+    const newBuf = new Uint8Array(buf.length + chunk.length);
+    newBuf.set(buf);
+    newBuf.set(chunk, buf.length);
+    buf = newBuf;
+
+    const result = Bun.JSONL.parseChunk(buf);
+
+    for (const value of result.values) {
+      handleRecord(value);
+    }
+
+    // Keep unconsumed bytes
+    buf = buf.slice(result.read);
+  }
+}
+```
+
+### Error recovery
+
+Unlike `parse()`, `parseChunk()` does not throw on invalid JSON. Instead, it returns the error in the `error` property, along with any values that were successfully parsed before the error:
+
+```ts
+const input = '{"a":1}\n{invalid}\n{"b":2}\n';
+const result = Bun.JSONL.parseChunk(input);
+
+console.log(result.values); // [{ a: 1 }] — values parsed before the error
+console.log(result.error); // SyntaxError
+console.log(result.read); // 7 — position up to last successful parse
+```
+
+---
+
+## Supported value types
+
+Each line can be any valid JSON value, not just objects:
+
+```ts
+const input = '42\n"hello"\ntrue\nnull\n[1,2,3]\n{"key":"value"}\n';
+const values = Bun.JSONL.parse(input);
+// [42, "hello", true, null, [1, 2, 3], { key: "value" }]
+```
+
+---
+
+## Performance notes
+
+- **ASCII fast path**: Pure ASCII input is parsed directly without copying, using a zero-allocation `StringView`.
+- **UTF-8 support**: Non-ASCII `Uint8Array` input is decoded to UTF-16 using SIMD-accelerated conversion.
+- **BOM handling**: UTF-8 BOM (`0xEF 0xBB 0xBF`) at the start of a `Uint8Array` is automatically skipped.
+- **Pre-built object shape**: The result object from `parseChunk` uses a cached structure for fast property access.

docs/runtime/markdown.mdx

@@ -0,0 +1,344 @@
+---
+title: Markdown
+description: Parse and render Markdown with Bun's built-in Markdown API, supporting GFM extensions and custom rendering callbacks
+---
+
+{% callout type="note" %}
+**Unstable API** — This API is under active development and may change in future versions of Bun.
+{% /callout %}
+
+Bun includes a fast, built-in Markdown parser written in Zig. It supports GitHub Flavored Markdown (GFM) extensions and provides three APIs:
+
+- `Bun.markdown.html()` — render Markdown to an HTML string
+- `Bun.markdown.render()` — render Markdown with custom callbacks for each element
+- `Bun.markdown.react()` — render Markdown to React JSX elements
+
+---
+
+## `Bun.markdown.html()`
+
+Convert a Markdown string to HTML.
+
+```ts
+const html = Bun.markdown.html("# Hello **world**");
+// "<h1>Hello <strong>world</strong></h1>\n"
+```
+
+GFM extensions like tables, strikethrough, and task lists are enabled by default:
+
+```ts
+const html = Bun.markdown.html(`
+| Feature      | Status |
+|-------------|--------|
+| Tables       | ~~done~~ |
+| Strikethrough| ~~done~~ |
+| Task lists   | done |
+`);
+```
+
+### Options
+
+Pass an options object as the second argument to configure the parser:
+
+```ts
+const html = Bun.markdown.html("some markdown", {
+  tables: true, // GFM tables (default: true)
+  strikethrough: true, // GFM strikethrough (default: true)
+  tasklists: true, // GFM task lists (default: true)
+  tagFilter: true, // GFM tag filter for disallowed HTML tags
+  autolinks: true, // Autolink URLs, emails, and www. links
+});
+```
+
+All available options:
+
+| Option                 | Default | Description                                                 |
+| ---------------------- | ------- | ----------------------------------------------------------- |
+| `tables`               | `false` | GFM tables                                                  |
+| `strikethrough`        | `false` | GFM strikethrough (`~~text~~`)                              |
+| `tasklists`            | `false` | GFM task lists (`- [x] item`)                               |
+| `autolinks`            | `false` | Enable autolinks — see [Autolinks](#autolinks)              |
+| `headings`             | `false` | Heading IDs and autolinks — see [Heading IDs](#heading-ids) |
+| `hardSoftBreaks`       | `false` | Treat soft line breaks as hard breaks                       |
+| `wikiLinks`            | `false` | Enable `[[wiki links]]`                                     |
+| `underline`            | `false` | `__text__` renders as `<u>` instead of `<strong>`           |
+| `latexMath`            | `false` | Enable `$inline$` and `$$display$$` math                    |
+| `collapseWhitespace`   | `false` | Collapse whitespace in text                                 |
+| `permissiveAtxHeaders` | `false` | ATX headers without space after `#`                         |
+| `noIndentedCodeBlocks` | `false` | Disable indented code blocks                                |
+| `noHtmlBlocks`         | `false` | Disable HTML blocks                                         |
+| `noHtmlSpans`          | `false` | Disable inline HTML                                         |
+| `tagFilter`            | `false` | GFM tag filter for disallowed HTML tags                     |
+
+#### Autolinks
+
+Pass `true` to enable all autolink types, or an object for granular control:
+
+```ts
+// Enable all autolinks (URL, WWW, email)
+Bun.markdown.html("Visit www.example.com", { autolinks: true });
+
+// Enable only specific types
+Bun.markdown.html("Visit www.example.com", {
+  autolinks: { url: true, www: true },
+});
+```
+
+#### Heading IDs
+
+Pass `true` to enable both heading IDs and autolink headings, or an object for granular control:
+
+```ts
+// Enable heading IDs and autolink headings
+Bun.markdown.html("## Hello World", { headings: true });
+// '<h2 id="hello-world"><a href="#hello-world">Hello World</a></h2>\n'
+
+// Enable only heading IDs (no autolink)
+Bun.markdown.html("## Hello World", { headings: { ids: true } });
+// '<h2 id="hello-world">Hello World</h2>\n'
+```
+
+---
+
+## `Bun.markdown.render()`
+
+Parse Markdown and render it using custom JavaScript callbacks. This gives you full control over the output format — you can generate HTML with custom classes, React elements, ANSI terminal output, or any other string format.
+
+```ts
+const result = Bun.markdown.render("# Hello **world**", {
+  heading: (children, { level }) => `<h${level} class="title">${children}</h${level}>`,
+  strong: children => `<b>${children}</b>`,
+  paragraph: children => `<p>${children}</p>`,
+});
+// '<h1 class="title">Hello <b>world</b></h1>'
+```
+
+### Callback signature
+
+Each callback receives:
+
+1. **`children`** — the accumulated content of the element as a string
+2. **`meta`** (optional) — an object with element-specific metadata
+
+Return a string to replace the element's rendering. Return `null` or `undefined` to omit the element from the output entirely. If no callback is registered for an element, its children pass through unchanged.
+
+### Block callbacks
+
+| Callback     | Meta                                        | Description                                                                              |
+| ------------ | ------------------------------------------- | ---------------------------------------------------------------------------------------- |
+| `heading`    | `{ level: number, id?: string }`            | Heading level 1–6. `id` is set when `headings: { ids: true }` is enabled                 |
+| `paragraph`  | —                                           | Paragraph block                                                                          |
+| `blockquote` | —                                           | Blockquote block                                                                         |
+| `code`       | `{ language?: string }`                     | Fenced or indented code block. `language` is the info-string when specified on the fence |
+| `list`       | `{ ordered: boolean, start?: number }`      | Ordered or unordered list. `start` is the start number for ordered lists                 |
+| `listItem`   | `{ checked?: boolean }`                     | List item. `checked` is set for task list items (`- [x]` / `- [ ]`)                      |
+| `hr`         | —                                           | Horizontal rule                                                                          |
+| `table`      | —                                           | Table block                                                                              |
+| `thead`      | —                                           | Table head                                                                               |
+| `tbody`      | —                                           | Table body                                                                               |
+| `tr`         | —                                           | Table row                                                                                |
+| `th`         | `{ align?: "left" \| "center" \| "right" }` | Table header cell. `align` is set when alignment is specified                            |
+| `td`         | `{ align?: "left" \| "center" \| "right" }` | Table data cell. `align` is set when alignment is specified                              |
+| `html`       | —                                           | Raw HTML content                                                                         |
+
+### Inline callbacks
+
+| Callback        | Meta                               | Description                  |
+| --------------- | ---------------------------------- | ---------------------------- |
+| `strong`        | —                                  | Strong emphasis (`**text**`) |
+| `emphasis`      | —                                  | Emphasis (`*text*`)          |
+| `link`          | `{ href: string, title?: string }` | Link                         |
+| `image`         | `{ src: string, title?: string }`  | Image                        |
+| `codespan`      | —                                  | Inline code (`` `code` ``)   |
+| `strikethrough` | —                                  | Strikethrough (`~~text~~`)   |
+| `text`          | —                                  | Plain text content           |
+
+### Examples
+
+#### Custom HTML with classes
+
+```ts
+const html = Bun.markdown.render("# Title\n\nHello **world**", {
+  heading: (children, { level }) => `<h${level} class="heading heading-${level}">${children}</h${level}>`,
+  paragraph: children => `<p class="body">${children}</p>`,
+  strong: children => `<strong class="bold">${children}</strong>`,
+});
+```
+
+#### Stripping all formatting
+
+```ts
+const plaintext = Bun.markdown.render("# Hello **world**", {
+  heading: children => children,
+  paragraph: children => children,
+  strong: children => children,
+  emphasis: children => children,
+  link: children => children,
+  image: () => "",
+  code: children => children,
+  codespan: children => children,
+});
+// "Hello world"
+```
+
+#### Omitting elements
+
+Return `null` or `undefined` to remove an element from the output:
+
+```ts
+const result = Bun.markdown.render("# Title\n\n![logo](img.png)\n\nHello", {
+  image: () => null, // Remove all images
+  heading: children => children,
+  paragraph: children => children + "\n",
+});
+// "Title\nHello\n"
+```
+
+#### ANSI terminal output
+
+```ts
+const ansi = Bun.markdown.render("# Hello\n\nThis is **bold** and *italic*", {
+  heading: (children, { level }) => `\x1b[1;4m${children}\x1b[0m\n`,
+  paragraph: children => children + "\n",
+  strong: children => `\x1b[1m${children}\x1b[22m`,
+  emphasis: children => `\x1b[3m${children}\x1b[23m`,
+});
+```
+
+#### Code block syntax highlighting
+
+````ts
+const result = Bun.markdown.render("```js\nconsole.log('hi')\n```", {
+  code: (children, meta) => {
+    const lang = meta?.language ?? "";
+    return `<pre><code class="language-${lang}">${children}</code></pre>`;
+  },
+});
+````
+
+### Parser options
+
+Parser options are passed as a separate third argument:
+
+```ts
+const result = Bun.markdown.render(
+  "Visit www.example.com",
+  {
+    link: (children, { href }) => `[${children}](${href})`,
+    paragraph: children => children,
+  },
+  { autolinks: true },
+);
+```
+
+---
+
+## `Bun.markdown.react()`
+
+Render Markdown directly to React elements. Returns a `<Fragment>` that you can use as a component return value.
+
+```tsx
+function Markdown({ text }: { text: string }) {
+  return Bun.markdown.react(text);
+}
+```
+
+### Server-side rendering
+
+Works with `renderToString()` and React Server Components:
+
+```tsx
+import { renderToString } from "react-dom/server";
+
+const html = renderToString(Bun.markdown.react("# Hello **world**"));
+// "<h1>Hello <strong>world</strong></h1>"
+```
+
+### Component overrides
+
+Replace any HTML element with a custom React component by passing it in the second argument, keyed by tag name:
+
+```tsx
+function Code({ language, children }) {
+  return (
+    <pre data-language={language}>
+      <code>{children}</code>
+    </pre>
+  );
+}
+
+function Link({ href, title, children }) {
+  return (
+    <a href={href} title={title} target="_blank" rel="noopener noreferrer">
+      {children}
+    </a>
+  );
+}
+
+function Heading({ id, children }) {
+  return (
+    <h2 id={id}>
+      <a href={`#${id}`}>{children}</a>
+    </h2>
+  );
+}
+
+const el = Bun.markdown.react(
+  content,
+  {
+    pre: Code,
+    a: Link,
+    h2: Heading,
+  },
+  { headings: { ids: true } },
+);
+```
+
+#### Available overrides
+
+Every HTML tag produced by the parser can be overridden:
+
+| Option       | Props                        | Description                                                     |
+| ------------ | ---------------------------- | --------------------------------------------------------------- |
+| `h1`–`h6`    | `{ id?, children }`          | Headings. `id` is set when `headings: { ids: true }` is enabled |
+| `p`          | `{ children }`               | Paragraph                                                       |
+| `blockquote` | `{ children }`               | Blockquote                                                      |
+| `pre`        | `{ language?, children }`    | Code block. `language` is the info string (e.g. `"js"`)         |
+| `hr`         | `{}`                         | Horizontal rule (no children)                                   |
+| `ul`         | `{ children }`               | Unordered list                                                  |
+| `ol`         | `{ start, children }`        | Ordered list. `start` is the first item number                  |
+| `li`         | `{ checked?, children }`     | List item. `checked` is set for task list items                 |
+| `table`      | `{ children }`               | Table                                                           |
+| `thead`      | `{ children }`               | Table head                                                      |
+| `tbody`      | `{ children }`               | Table body                                                      |
+| `tr`         | `{ children }`               | Table row                                                       |
+| `th`         | `{ align?, children }`       | Table header cell                                               |
+| `td`         | `{ align?, children }`       | Table data cell                                                 |
+| `em`         | `{ children }`               | Emphasis (`*text*`)                                             |
+| `strong`     | `{ children }`               | Strong (`**text**`)                                             |
+| `a`          | `{ href, title?, children }` | Link                                                            |
+| `img`        | `{ src, alt?, title? }`      | Image (no children)                                             |
+| `code`       | `{ children }`               | Inline code                                                     |
+| `del`        | `{ children }`               | Strikethrough (`~~text~~`)                                      |
+| `br`         | `{}`                         | Hard line break (no children)                                   |
+
+### React 18 and older
+
+By default, elements use `Symbol.for('react.transitional.element')` as the `$$typeof` symbol. For React 18 and older, pass `reactVersion: 18` in the options (third argument):
+
+```tsx
+function Markdown({ text }: { text: string }) {
+  return Bun.markdown.react(text, undefined, { reactVersion: 18 });
+}
+```
+
+### Parser options
+
+All [parser options](#options) are passed as the third argument:
+
+```tsx
+const el = Bun.markdown.react("## Hello World", undefined, {
+  headings: { ids: true },
+  autolinks: true,
+});
+```

docs/runtime/nodejs-compat.mdx

@@ -165,7 +165,7 @@ This page is updated regularly to reflect compatibility status of the latest ver
 
 ### [`node:inspector`](https://nodejs.org/api/inspector.html)
 
-🔴 Not implemented.
+🟡 Partially implemented. `Profiler` API is supported (`Profiler.enable`, `Profiler.disable`, `Profiler.start`, `Profiler.stop`, `Profiler.setSamplingInterval`). Other inspector APIs are not yet implemented.
 
 ### [`node:repl`](https://nodejs.org/api/repl.html)
 

docs/runtime/s3.mdx

@@ -135,6 +135,18 @@ await s3file.write(JSON.stringify({ name: "John", age: 30 }), {
   type: "application/json",
 });
 
+// Write with content encoding (e.g. for pre-compressed data)
+await s3file.write(compressedData, {
+  type: "application/json",
+  contentEncoding: "gzip",
+});
+
+// Write with content disposition
+await s3file.write(pdfData, {
+  type: "application/pdf",
+  contentDisposition: 'attachment; filename="report.pdf"',
+});
+
 // Write using a writer (streaming)
 const writer = s3file.writer({ type: "application/json" });
 writer.write("Hello");
@@ -188,7 +200,13 @@ const download = s3.presign("my-file.txt"); // GET, text/plain, expires in 24 ho
 const upload = s3.presign("my-file", {
   expiresIn: 3600, // 1 hour
   method: "PUT",
-  type: "application/json", // No extension for inferring, so we can specify the content type to be JSON
+  type: "application/json", // Sets response-content-type in the presigned URL
+});
+
+// Presign with content disposition (e.g. force download with a specific filename)
+const downloadUrl = s3.presign("report.pdf", {
+  expiresIn: 3600,
+  contentDisposition: 'attachment; filename="quarterly-report.pdf"',
 });
 
 // You can call .presign() if on a file reference, but avoid doing so

docs/runtime/shell.mdx

@@ -460,7 +460,7 @@ console.log(result); // Blob(13) { size: 13, type: "text/plain" }
 For cross-platform compatibility, Bun Shell implements a set of builtin commands, in addition to reading commands from the PATH environment variable.
 
 - `cd`: change the working directory
-- `ls`: list files in a directory
+- `ls`: list files in a directory (supports `-l` for long listing format)
 - `rm`: remove files and directories
 - `echo`: print text
 - `pwd`: print the working directory

docs/runtime/utils.mdx

@@ -880,6 +880,94 @@ npm/strip-ansi 212,992 chars long-ansi      1.36 ms/iter   1.38 ms
 
 ---
 
+## `Bun.wrapAnsi()`
+
+<Note>Drop-in replacement for `wrap-ansi` npm package</Note>
+
+`Bun.wrapAnsi(input: string, columns: number, options?: WrapAnsiOptions): string`
+
+Wrap text to a specified column width while preserving ANSI escape codes, hyperlinks, and handling Unicode/emoji width correctly. This is a native, high-performance alternative to the popular [`wrap-ansi`](https://www.npmjs.com/package/wrap-ansi) npm package.
+
+```ts
+// Basic wrapping at 20 columns
+Bun.wrapAnsi("The quick brown fox jumps over the lazy dog", 20);
+// => "The quick brown fox\njumps over the lazy\ndog"
+
+// Preserves ANSI escape codes
+Bun.wrapAnsi("\u001b[31mThe quick brown fox jumps over the lazy dog\u001b[0m", 20);
+// => "\u001b[31mThe quick brown fox\njumps over the lazy\ndog\u001b[0m"
+```
+
+### Options
+
+```ts
+Bun.wrapAnsi("Hello World", 5, {
+  hard: true, // Break words that exceed column width (default: false)
+  wordWrap: true, // Wrap at word boundaries (default: true)
+  trim: true, // Trim leading/trailing whitespace per line (default: true)
+  ambiguousIsNarrow: true, // Treat ambiguous-width characters as narrow (default: true)
+});
+```
+
+| Option              | Default | Description                                                                                                     |
+| ------------------- | ------- | --------------------------------------------------------------------------------------------------------------- |
+| `hard`              | `false` | If `true`, break words in the middle if they exceed the column width.                                           |
+| `wordWrap`          | `true`  | If `true`, wrap at word boundaries. If `false`, only break at explicit newlines.                                |
+| `trim`              | `true`  | If `true`, trim leading and trailing whitespace from each line.                                                 |
+| `ambiguousIsNarrow` | `true`  | If `true`, treat ambiguous-width Unicode characters as 1 column wide. If `false`, treat them as 2 columns wide. |
+
+TypeScript definition:
+
+```ts expandable
+namespace Bun {
+  export function wrapAnsi(
+    /**
+     * The string to wrap
+     */
+    input: string,
+    /**
+     * The maximum column width
+     */
+    columns: number,
+    /**
+     * Wrapping options
+     */
+    options?: {
+      /**
+       * If `true`, break words in the middle if they don't fit on a line.
+       * If `false`, only break at word boundaries.
+       *
+       * @default false
+       */
+      hard?: boolean;
+      /**
+       * If `true`, wrap at word boundaries when possible.
+       * If `false`, don't perform word wrapping (only wrap at explicit newlines).
+       *
+       * @default true
+       */
+      wordWrap?: boolean;
+      /**
+       * If `true`, trim leading and trailing whitespace from each line.
+       * If `false`, preserve whitespace.
+       *
+       * @default true
+       */
+      trim?: boolean;
+      /**
+       * When it's ambiguous and `true`, count ambiguous width characters as 1 character wide.
+       * If `false`, count them as 2 characters wide.
+       *
+       * @default true
+       */
+      ambiguousIsNarrow?: boolean;
+    },
+  ): string;
+}
+```
+
+---
+
 ## `serialize` & `deserialize` in `bun:jsc`
 
 To save a JavaScript value into an ArrayBuffer & back, use `serialize` and `deserialize` from the `"bun:jsc"` module.

docs/snippets/cli/build.mdx

@@ -50,7 +50,8 @@ bun build <entry points>
 </ParamField>
 
 <ParamField path="--format" type="string" default="esm">
-  Module format of the output bundle. One of <code>esm</code>, <code>cjs</code>, or <code>iife</code>
+  Module format of the output bundle. One of <code>esm</code>, <code>cjs</code>, or <code>iife</code>. Defaults to{" "}
+  <code>cjs</code> when <code>--bytecode</code> is used.
 </ParamField>
 
 ### File Naming

docs/snippets/cli/run.mdx

@@ -40,6 +40,18 @@ bun run <file or script>
   Run a script in all workspace packages (from the <code>workspaces</code> field in <code>package.json</code>)
 </ParamField>
 
+<ParamField path="--parallel" type="boolean">
+  Run multiple scripts or workspace scripts concurrently with prefixed output
+</ParamField>
+
+<ParamField path="--sequential" type="boolean">
+  Run multiple scripts or workspace scripts one after another with prefixed output
+</ParamField>
+
+<ParamField path="--no-exit-on-error" type="boolean">
+  When using <code>--parallel</code> or <code>--sequential</code>, continue running other scripts when one fails
+</ParamField>
+
 ### Runtime &amp; Process Control
 
 <ParamField path="--bun" type="boolean">

flake.nix

@@ -131,6 +131,7 @@
           stdenv = pkgs.clangStdenv;
         }) {
           inherit packages;
+          hardeningDisable = [ "fortify" ];
 
           shellHook = ''
             # Set up build environment

meta.json

@@ -0,0 +1,24 @@
+{
+  "inputs": {
+    "../../tmp/test-entry.js": {
+      "bytes": 21,
+      "imports": [
+      ],
+      "format": "esm"
+    }
+  },
+  "outputs": {
+    "./test-entry.js": {
+      "bytes": 49,
+      "inputs": {
+        "../../tmp/test-entry.js": {
+          "bytesInOutput": 22
+        }
+      },
+      "imports": [
+      ],
+      "exports": [],
+      "entryPoint": "../../tmp/test-entry.js"
+    }
+  }
+}

misctools/cold-jsc-start.cpp

@@ -35,7 +35,7 @@ JSC_DEFINE_HOST_FUNCTION(jsFunctionWrite, (JSC::JSGlobalObject * globalObject,
   JSValue arg1 = callframe->argument(0);
   JSValue toWriteArg = callframe->argument(1);
   auto &vm = globalObject->vm();
-  auto scope = DECLARE_CATCH_SCOPE(vm);
+  auto scope = DECLARE_TOP_EXCEPTION_SCOPE(vm);
 
   int32_t fd = STDOUT_FILENO;
   if (callframe->argumentCount() > 1) {

package.json

@@ -1,7 +1,7 @@
 {
   "private": true,
   "name": "bun",
-  "version": "1.3.7",
+  "version": "1.3.9",
   "workspaces": [
     "./packages/bun-types",
     "./packages/@types/bun"

packages/bun-release/scripts/upload-npm.ts

@@ -71,8 +71,25 @@ async function buildRootModule(dryRun?: boolean) {
       js: "// Source code: https://github.com/oven-sh/bun/blob/main/packages/bun-release/scripts/npm-postinstall.ts",
     },
   });
-  write(join(cwd, "bin", "bun.exe"), "");
-  write(join(cwd, "bin", "bunx.exe"), "");
+  // Create placeholder scripts that print an error message if postinstall hasn't run.
+  // On Unix, these are executed as shell scripts despite the .exe extension.
+  // Do NOT add a shebang (#!/bin/sh) here — npm's cmd-shim reads shebangs to generate
+  // .ps1/.cmd wrappers BEFORE postinstall runs, and bakes the interpreter path in.
+  // A #!/bin/sh shebang breaks Windows because the wrappers reference /bin/sh which
+  // doesn't exist, even after postinstall replaces the placeholder with the real binary.
+  const placeholderScript = `echo "Error: Bun's postinstall script was not run." >&2
+echo "" >&2
+echo "This occurs when using --ignore-scripts during installation, or when using a" >&2
+echo "package manager like pnpm that does not run postinstall scripts by default." >&2
+echo "" >&2
+echo "To fix this, run the postinstall script manually:" >&2
+echo "  cd node_modules/bun && node install.js" >&2
+echo "" >&2
+echo "Or reinstall bun without the --ignore-scripts flag." >&2
+exit 1
+`;
+  write(join(cwd, "bin", "bun.exe"), placeholderScript);
+  write(join(cwd, "bin", "bunx.exe"), placeholderScript);
   write(
     join(cwd, "bin", "README.txt"),
     `The 'bun.exe' file is a placeholder for the binary file, which

packages/bun-types/bun.d.ts

@@ -610,6 +610,97 @@ declare module "bun" {
    */
   function stripANSI(input: string): string;
 
+  interface WrapAnsiOptions {
+    /**
+     * If `true`, break words in the middle if they don't fit on a line.
+     * If `false`, only break at word boundaries.
+     *
+     * @default false
+     */
+    hard?: boolean;
+
+    /**
+     * If `true`, wrap at word boundaries when possible.
+     * If `false`, don't perform word wrapping (only wrap at explicit newlines).
+     *
+     * @default true
+     */
+    wordWrap?: boolean;
+
+    /**
+     * If `true`, trim leading and trailing whitespace from each line.
+     * If `false`, preserve whitespace.
+     *
+     * @default true
+     */
+    trim?: boolean;
+
+    /**
+     * When it's ambiguous and `true`, count ambiguous width characters as 1 character wide.
+     * If `false`, count them as 2 characters wide.
+     *
+     * @default true
+     */
+    ambiguousIsNarrow?: boolean;
+  }
+
+  /**
+   * Wrap a string to fit within the specified column width, preserving ANSI escape codes.
+   *
+   * This function is designed to be compatible with the popular "wrap-ansi" NPM package.
+   *
+   * Features:
+   * - Preserves ANSI escape codes (colors, styles) across line breaks
+   * - Supports SGR codes (colors, bold, italic, etc.) and OSC 8 hyperlinks
+   * - Respects Unicode display widths (full-width characters, emoji)
+   * - Word wrapping at word boundaries (configurable)
+   *
+   * @category Utilities
+   *
+   * @param input The string to wrap
+   * @param columns The maximum column width
+   * @param options Wrapping options
+   * @returns The wrapped string
+   *
+   * @example
+   * ```ts
+   * import { wrapAnsi } from "bun";
+   *
+   * console.log(wrapAnsi("hello world", 5));
+   * // Output:
+   * // hello
+   * // world
+   *
+   * // Preserves ANSI colors across line breaks
+   * console.log(wrapAnsi("\u001b[31mhello world\u001b[0m", 5));
+   * // Output:
+   * // \u001b[31mhello\u001b[0m
+   * // \u001b[31mworld\u001b[0m
+   *
+   * // Hard wrap long words
+   * console.log(wrapAnsi("abcdefghij", 3, { hard: true }));
+   * // Output:
+   * // abc
+   * // def
+   * // ghi
+   * // j
+   * ```
+   */
+  function wrapAnsi(
+    /**
+     * The string to wrap
+     */
+    input: string,
+    /**
+     * The maximum column width
+     */
+    columns: number,
+    /**
+     * Wrapping options
+     */
+    options?: WrapAnsiOptions,
+  ): string;
+
   /**
    * TOML related APIs
    */
@@ -652,6 +743,101 @@ declare module "bun" {
     export function parse(input: string): unknown;
   }
 
+  /**
+   * JSONL (JSON Lines) related APIs.
+   *
+   * Each line in the input is expected to be a valid JSON value separated by newlines.
+   */
+  namespace JSONL {
+    /**
+     * The result of `Bun.JSONL.parseChunk`.
+     */
+    interface ParseChunkResult {
+      /** The successfully parsed JSON values. */
+      values: unknown[];
+      /** How far into the input was consumed. When the input is a string, this is a character offset. When the input is a `TypedArray`, this is a byte offset. Use `input.slice(read)` or `input.subarray(read)` to get the unconsumed remainder. */
+      read: number;
+      /** `true` if all input was consumed successfully. `false` if the input ends with an incomplete value or a parse error occurred. */
+      done: boolean;
+      /** A `SyntaxError` if a parse error occurred, otherwise `null`. Values parsed before the error are still available in `values`. */
+      error: SyntaxError | null;
+    }
+
+    /**
+     * Parse a JSONL (JSON Lines) string into an array of JavaScript values.
+     *
+     * If a parse error occurs and no values were successfully parsed, throws
+     * a `SyntaxError`. If values were parsed before the error, returns the
+     * successfully parsed values without throwing.
+     *
+     * Incomplete trailing values (e.g. from a partial chunk) are silently
+     * ignored and not included in the result.
+     *
+     * When a `TypedArray` is passed, the bytes are parsed directly without
+     * copying if the content is ASCII.
+     *
+     * @param input The JSONL string or typed array to parse
+     * @returns An array of parsed values
+     * @throws {SyntaxError} If the input starts with invalid JSON and no values could be parsed
+     *
+     * @example
+     * ```js
+     * const items = Bun.JSONL.parse('{"a":1}\n{"b":2}\n');
+     * // [{ a: 1 }, { b: 2 }]
+     *
+     * // From a Uint8Array (zero-copy for ASCII):
+     * const buf = new TextEncoder().encode('{"a":1}\n{"b":2}\n');
+     * const items = Bun.JSONL.parse(buf);
+     * // [{ a: 1 }, { b: 2 }]
+     *
+     * // Partial results on error after valid values:
+     * const partial = Bun.JSONL.parse('{"a":1}\n{bad}\n');
+     * // [{ a: 1 }]
+     *
+     * // Throws when no valid values precede the error:
+     * Bun.JSONL.parse('{bad}\n'); // throws SyntaxError
+     * ```
+     */
+    export function parse(input: string | NodeJS.TypedArray | DataView<ArrayBuffer> | ArrayBufferLike): unknown[];
+
+    /**
+     * Parse a JSONL chunk, designed for streaming use.
+     *
+     * Never throws on parse errors. Instead, returns whatever values were
+     * successfully parsed along with an `error` property containing the
+     * `SyntaxError` (or `null` on success). Use `read` to determine how
+     * much input was consumed and `done` to check if all input was parsed.
+     *
+     * When a `TypedArray` is passed, the bytes are parsed directly without
+     * copying if the content is ASCII. Optional `start` and `end` parameters
+     * allow slicing without copying, and `read` will be a byte offset into
+     * the original typed array.
+     *
+     * @param input The JSONL string or typed array to parse
+     * @param start Byte offset to start parsing from (typed array only, default: 0)
+     * @param end Byte offset to stop parsing at (typed array only, default: input.byteLength)
+     * @returns An object with `values`, `read`, `done`, and `error` properties
+     *
+     * @example
+     * ```js
+     * let buffer = new Uint8Array(0);
+     * for await (const chunk of stream) {
+     *   buffer = Buffer.concat([buffer, chunk]);
+     *   const { values, read, error } = Bun.JSONL.parseChunk(buffer);
+     *   if (error) throw error;
+     *   for (const value of values) handle(value);
+     *   buffer = buffer.subarray(read);
+     * }
+     * ```
+     */
+    export function parseChunk(input: string): ParseChunkResult;
+    export function parseChunk(
+      input: NodeJS.TypedArray | DataView<ArrayBuffer> | ArrayBufferLike,
+      start?: number,
+      end?: number,
+    ): ParseChunkResult;
+  }
+
   /**
    * YAML related APIs
    */
@@ -719,6 +905,480 @@ declare module "bun" {
     export function stringify(input: unknown, replacer?: undefined | null, space?: string | number): string;
   }
 
+  /**
+   * Markdown related APIs.
+   *
+   * Provides fast markdown parsing and rendering with three output modes:
+   * - `html()` — render to an HTML string
+   * - `render()` — render with custom callbacks for each element
+   * - `react()` — parse to React-compatible JSX elements
+   *
+   * Supports GFM extensions (tables, strikethrough, task lists, autolinks) and
+   * component overrides to replace default HTML tags with custom components.
+   *
+   * @example
+   * ```tsx
+   * // Render markdown to HTML
+   * const html = Bun.markdown.html("# Hello **world**");
+   * // "<h1>Hello <strong>world</strong></h1>\n"
+   *
+   * // Render with custom callbacks
+   * const ansi = Bun.markdown.render("# Hello **world**", {
+   *   heading: (children, { level }) => `\x1b[1m${children}\x1b[0m\n`,
+   *   strong: (children) => `\x1b[1m${children}\x1b[22m`,
+   *   paragraph: (children) => children + "\n",
+   * });
+   *
+   * // Render as a React component
+   * function Markdown({ text }: { text: string }) {
+   *   return Bun.markdown.react(text);
+   * }
+   *
+   * // With component overrides
+   * const element = Bun.markdown.react("# Hello", { h1: MyHeadingComponent });
+   * ```
+   */
+  namespace markdown {
+    /**
+     * Options for configuring the markdown parser.
+     *
+     * By default, GFM extensions (tables, strikethrough, task lists) are enabled.
+     */
+    interface Options {
+      /** Enable GFM tables. Default: `true`. */
+      tables?: boolean;
+      /** Enable GFM strikethrough (`~~text~~`). Default: `true`. */
+      strikethrough?: boolean;
+      /** Enable GFM task lists (`- [x] item`). Default: `true`. */
+      tasklists?: boolean;
+      /** Treat soft line breaks as hard line breaks. Default: `false`. */
+      hardSoftBreaks?: boolean;
+      /** Enable wiki-style links (`[[target]]` or `[[target|label]]`). Default: `false`. */
+      wikiLinks?: boolean;
+      /** Enable underline syntax (`__text__` renders as `<u>` instead of `<strong>`). Default: `false`. */
+      underline?: boolean;
+      /** Enable LaTeX math (`$inline$` and `$$display$$`). Default: `false`. */
+      latexMath?: boolean;
+      /** Collapse whitespace in text content. Default: `false`. */
+      collapseWhitespace?: boolean;
+      /** Allow ATX headers without a space after `#`. Default: `false`. */
+      permissiveAtxHeaders?: boolean;
+      /** Disable indented code blocks. Default: `false`. */
+      noIndentedCodeBlocks?: boolean;
+      /** Disable HTML blocks. Default: `false`. */
+      noHtmlBlocks?: boolean;
+      /** Disable inline HTML spans. Default: `false`. */
+      noHtmlSpans?: boolean;
+      /**
+       * Enable the GFM tag filter, which replaces `<` with `&lt;` for disallowed
+       * HTML tags (e.g. `<script>`, `<style>`, `<iframe>`). Default: `false`.
+       */
+      tagFilter?: boolean;
+      /**
+       * Enable autolinks. Pass `true` to enable all autolink types (URL, WWW, email),
+       * or an object to enable individually.
+       *
+       * @example
+       * ```ts
+       * // Enable all autolinks
+       * { autolinks: true }
+       * // Enable only URL and email autolinks
+       * { autolinks: { url: true, email: true } }
+       * ```
+       */
+      autolinks?: boolean | { url?: boolean; www?: boolean; email?: boolean };
+      /**
+       * Configure heading IDs and autolink headings. Pass `true` to enable both
+       * heading IDs and autolink headings, or an object to configure individually.
+       *
+       * @example
+       * ```ts
+       * // Enable both heading IDs and autolink headings
+       * { headings: true }
+       * // Enable only heading IDs
+       * { headings: { ids: true } }
+       * ```
+       */
+      headings?: boolean | { ids?: boolean; autolink?: boolean };
+    }
+
+    /** A component that accepts props `P`: a function, class, or HTML tag name. */
+    type Component<P = {}> = string | ((props: P) => any) | (new (props: P) => any);
+
+    interface ChildrenProps {
+      children: import("./jsx.d.ts").JSX.Element[];
+    }
+    interface HeadingProps extends ChildrenProps {
+      /** Heading ID slug. Set when `headings: { ids: true }` is enabled. */
+      id?: string;
+    }
+    interface OrderedListProps extends ChildrenProps {
+      /** The start number. */
+      start: number;
+    }
+    interface ListItemProps extends ChildrenProps {
+      /** Task list checked state. Set for `- [x]` / `- [ ]` items. */
+      checked?: boolean;
+    }
+    interface CodeBlockProps extends ChildrenProps {
+      /** The info-string language (e.g. `"js"`). */
+      language?: string;
+    }
+    interface CellProps extends ChildrenProps {
+      /** Column alignment. */
+      align?: "left" | "center" | "right";
+    }
+    interface LinkProps extends ChildrenProps {
+      /** Link URL. */
+      href: string;
+      /** Link title attribute. */
+      title?: string;
+    }
+    interface ImageProps {
+      /** Image URL. */
+      src: string;
+      /** Alt text. */
+      alt?: string;
+      /** Image title attribute. */
+      title?: string;
+    }
+
+    /**
+     * Component overrides for `react()`.
+     *
+     * Replace default HTML tags with custom React components. Each override
+     * receives the same props the default element would get.
+     *
+     * @example
+     * ```tsx
+     * function Code({ language, children }: { language?: string; children: React.ReactNode }) {
+     *   return <pre data-language={language}><code>{children}</code></pre>;
+     * }
+     * Bun.markdown.react(text, { pre: Code });
+     * ```
+     */
+    interface ComponentOverrides {
+      h1?: Component<HeadingProps>;
+      h2?: Component<HeadingProps>;
+      h3?: Component<HeadingProps>;
+      h4?: Component<HeadingProps>;
+      h5?: Component<HeadingProps>;
+      h6?: Component<HeadingProps>;
+      p?: Component<ChildrenProps>;
+      blockquote?: Component<ChildrenProps>;
+      ul?: Component<ChildrenProps>;
+      ol?: Component<OrderedListProps>;
+      li?: Component<ListItemProps>;
+      pre?: Component<CodeBlockProps>;
+      hr?: Component<{}>;
+      html?: Component<ChildrenProps>;
+      table?: Component<ChildrenProps>;
+      thead?: Component<ChildrenProps>;
+      tbody?: Component<ChildrenProps>;
+      tr?: Component<ChildrenProps>;
+      th?: Component<CellProps>;
+      td?: Component<CellProps>;
+      em?: Component<ChildrenProps>;
+      strong?: Component<ChildrenProps>;
+      a?: Component<LinkProps>;
+      img?: Component<ImageProps>;
+      code?: Component<ChildrenProps>;
+      del?: Component<ChildrenProps>;
+      math?: Component<ChildrenProps>;
+      u?: Component<ChildrenProps>;
+      br?: Component<{}>;
+    }
+
+    /**
+     * Callbacks for `render()`. Each callback receives the accumulated children
+     * as a string and optional metadata, and returns a string.
+     *
+     * Return `null` or `undefined` to omit the element from the output.
+     * If no callback is registered for an element, its children pass through unchanged.
+     */
+    /** Meta passed to the `heading` callback. */
+    interface HeadingMeta {
+      /** Heading level (1–6). */
+      level: number;
+      /** Heading ID slug. Set when `headings: { ids: true }` is enabled. */
+      id?: string;
+    }
+
+    /** Meta passed to the `code` callback. */
+    interface CodeBlockMeta {
+      /** The info-string language (e.g. `"js"`). */
+      language?: string;
+    }
+
+    /** Meta passed to the `list` callback. */
+    interface ListMeta {
+      /** Whether this is an ordered list. */
+      ordered: boolean;
+      /** The start number for ordered lists. */
+      start?: number;
+    }
+
+    /** Meta passed to the `listItem` callback. */
+    interface ListItemMeta {
+      /** Task list checked state. Set for `- [x]` / `- [ ]` items. */
+      checked?: boolean;
+    }
+
+    /** Meta passed to `th` and `td` callbacks. */
+    interface CellMeta {
+      /** Column alignment. */
+      align?: "left" | "center" | "right";
+    }
+
+    /** Meta passed to the `link` callback. */
+    interface LinkMeta {
+      /** Link URL. */
+      href: string;
+      /** Link title attribute. */
+      title?: string;
+    }
+
+    /** Meta passed to the `image` callback. */
+    interface ImageMeta {
+      /** Image URL. */
+      src: string;
+      /** Image title attribute. */
+      title?: string;
+    }
+
+    interface RenderCallbacks {
+      /** Heading (level 1–6). `id` is set when `headings: { ids: true }` is enabled. */
+      heading?: (children: string, meta: HeadingMeta) => string | null | undefined;
+      /** Paragraph. */
+      paragraph?: (children: string) => string | null | undefined;
+      /** Blockquote. */
+      blockquote?: (children: string) => string | null | undefined;
+      /** Code block. `meta.language` is the info-string (e.g. `"js"`). Only passed for fenced code blocks with a language. */
+      code?: (children: string, meta?: CodeBlockMeta) => string | null | undefined;
+      /** Ordered or unordered list. `start` is the first item number for ordered lists. */
+      list?: (children: string, meta: ListMeta) => string | null | undefined;
+      /** List item. `meta.checked` is set for task list items (`- [x]` / `- [ ]`). Only passed for task list items. */
+      listItem?: (children: string, meta?: ListItemMeta) => string | null | undefined;
+      /** Horizontal rule. */
+      hr?: (children: string) => string | null | undefined;
+      /** Table. */
+      table?: (children: string) => string | null | undefined;
+      /** Table head. */
+      thead?: (children: string) => string | null | undefined;
+      /** Table body. */
+      tbody?: (children: string) => string | null | undefined;
+      /** Table row. */
+      tr?: (children: string) => string | null | undefined;
+      /** Table header cell. `meta.align` is set when column alignment is specified. */
+      th?: (children: string, meta?: CellMeta) => string | null | undefined;
+      /** Table data cell. `meta.align` is set when column alignment is specified. */
+      td?: (children: string, meta?: CellMeta) => string | null | undefined;
+      /** Raw HTML content. */
+      html?: (children: string) => string | null | undefined;
+      /** Strong emphasis (`**text**`). */
+      strong?: (children: string) => string | null | undefined;
+      /** Emphasis (`*text*`). */
+      emphasis?: (children: string) => string | null | undefined;
+      /** Link. `href` is the URL, `title` is the optional title attribute. */
+      link?: (children: string, meta: LinkMeta) => string | null | undefined;
+      /** Image. `src` is the URL, `title` is the optional title attribute. */
+      image?: (children: string, meta: ImageMeta) => string | null | undefined;
+      /** Inline code (`` `code` ``). */
+      codespan?: (children: string) => string | null | undefined;
+      /** Strikethrough (`~~text~~`). */
+      strikethrough?: (children: string) => string | null | undefined;
+      /** Plain text content. */
+      text?: (text: string) => string | null | undefined;
+    }
+
+    /** Options for `react()` — parser options and element symbol configuration. */
+    interface ReactOptions extends Options {
+      /**
+       * Which `$$typeof` symbol to use on the generated elements.
+       * - `19` (default): `Symbol.for('react.transitional.element')`
+       * - `18`: `Symbol.for('react.element')` — use this for React 18 and older
+       */
+      reactVersion?: 18 | 19;
+    }
+
+    /**
+     * Render markdown to an HTML string.
+     *
+     * @param input The markdown string or buffer to render
+     * @param options Parser options
+     * @returns An HTML string
+     *
+     * @example
+     * ```ts
+     * const html = Bun.markdown.html("# Hello **world**");
+     * // "<h1>Hello <strong>world</strong></h1>\n"
+     *
+     * // With options
+     * const html = Bun.markdown.html("## Hello", { headings: { ids: true } });
+     * // '<h2 id="hello">Hello</h2>\n'
+     * ```
+     */
+    export function html(
+      input: string | NodeJS.TypedArray | DataView<ArrayBuffer> | ArrayBufferLike,
+      options?: Options,
+    ): string;
+
+    /**
+     * Render markdown with custom JavaScript callbacks for each element.
+     *
+     * Each callback receives the accumulated children as a string and optional
+     * metadata, and returns a string. Return `null` or `undefined` to omit
+     * an element. If no callback is registered, children pass through unchanged.
+     *
+     * Parser options are passed as a separate third argument.
+     *
+     * @param input The markdown string to render
+     * @param callbacks Callbacks for each element type
+     * @param options Parser options
+     * @returns The accumulated string output
+     *
+     * @example
+     * ```ts
+     * // Custom HTML with classes
+     * const html = Bun.markdown.render("# Title\n\nHello **world**", {
+     *   heading: (children, { level }) => `<h${level} class="title">${children}</h${level}>`,
+     *   paragraph: (children) => `<p>${children}</p>`,
+     *   strong: (children) => `<b>${children}</b>`,
+     * });
+     *
+     * // ANSI terminal output
+     * const ansi = Bun.markdown.render("# Hello\n\n**bold**", {
+     *   heading: (children) => `\x1b[1;4m${children}\x1b[0m\n`,
+     *   paragraph: (children) => children + "\n",
+     *   strong: (children) => `\x1b[1m${children}\x1b[22m`,
+     * });
+     *
+     * // With parser options as third argument
+     * const text = Bun.markdown.render("Visit www.example.com", {
+     *   link: (children, { href }) => `[${children}](${href})`,
+     *   paragraph: (children) => children,
+     * }, { autolinks: true });
+     * ```
+     */
+    export function render(
+      input: string | NodeJS.TypedArray | DataView<ArrayBuffer> | ArrayBufferLike,
+      callbacks?: RenderCallbacks,
+      options?: Options,
+    ): string;
+
+    /**
+     * Render markdown to React JSX elements.
+     *
+     * Returns a React Fragment containing the parsed markdown as children.
+     * Can be returned directly from a component or passed to `renderToString()`.
+     *
+     * Override any HTML element with a custom component by passing it in the
+     * second argument, keyed by tag name. Custom components receive the same props
+     * the default elements would (e.g. `href` for links, `language` for code blocks).
+     *
+     * Parser options (including `reactVersion`) are passed as a separate third argument.
+     * Uses `Symbol.for('react.transitional.element')` by default (React 19).
+     * Pass `reactVersion: 18` for React 18 and older.
+     *
+     * @param input The markdown string or buffer to parse
+     * @param components Component overrides keyed by HTML tag name
+     * @param options Parser options and element symbol configuration
+     * @returns A React Fragment element containing the parsed markdown
+     *
+     * @example
+     * ```tsx
+     * // Use directly as a component return value
+     * function Markdown({ text }: { text: string }) {
+     *   return Bun.markdown.react(text);
+     * }
+     *
+     * // Server-side rendering
+     * import { renderToString } from "react-dom/server";
+     * const html = renderToString(Bun.markdown.react("# Hello **world**"));
+     *
+     * // Custom components receive element props
+     * function Code({ language, children }: { language?: string; children: React.ReactNode }) {
+     *   return <pre data-language={language}><code>{children}</code></pre>;
+     * }
+     * function Link({ href, children }: { href: string; children: React.ReactNode }) {
+     *   return <a href={href} target="_blank">{children}</a>;
+     * }
+     * const el = Bun.markdown.react(text, { pre: Code, a: Link });
+     *
+     * // For React 18 and older
+     * const el18 = Bun.markdown.react(text, undefined, { reactVersion: 18 });
+     * ```
+     */
+    export function react(
+      input: string | NodeJS.TypedArray | DataView<ArrayBuffer> | ArrayBufferLike,
+      components?: ComponentOverrides,
+      options?: ReactOptions,
+    ): import("./jsx.d.ts").JSX.Element;
+  }
+
+  /**
+   * JSON5 related APIs
+   */
+  namespace JSON5 {
+    /**
+     * Parse a JSON5 string into a JavaScript value.
+     *
+     * JSON5 is a superset of JSON based on ECMAScript 5.1 that supports
+     * comments, trailing commas, unquoted keys, single-quoted strings,
+     * hex numbers, Infinity, NaN, and more.
+     *
+     * @category Utilities
+     *
+     * @param input The JSON5 string to parse
+     * @returns A JavaScript value
+     *
+     * @example
+     * ```ts
+     * import { JSON5 } from "bun";
+     *
+     * const result = JSON5.parse(`{
+     *   // This is a comment
+     *   name: 'my-app',
+     *   version: '1.0.0', // trailing comma is allowed
+     *   hex: 0xDEADbeef,
+     *   half: .5,
+     *   infinity: Infinity,
+     * }`);
+     * ```
+     */
+    export function parse(input: string): unknown;
+
+    /**
+     * Convert a JavaScript value into a JSON5 string. Object keys that are
+     * valid identifiers are unquoted, strings use double quotes, `Infinity`
+     * and `NaN` are represented as literals, and indented output includes
+     * trailing commas.
+     *
+     * @category Utilities
+     *
+     * @param input The JavaScript value to stringify.
+     * @param replacer Currently not supported.
+     * @param space A number for how many spaces each level of indentation gets, or a string used as indentation.
+     *              The number is clamped between 0 and 10, and the first 10 characters of the string are used.
+     * @returns A JSON5 string, or `undefined` if the input is `undefined`, a function, or a symbol.
+     *
+     * @example
+     * ```ts
+     * import { JSON5 } from "bun";
+     *
+     * console.log(JSON5.stringify({ a: 1, b: "two" }));
+     * // {a:1,b:"two"}
+     *
+     * console.log(JSON5.stringify({ a: 1, b: 2 }, null, 2));
+     * // {
+     * //   a: 1,
+     * //   b: 2,
+     * // }
+     * ```
+     */
+    export function stringify(input: unknown, replacer?: undefined | null, space?: string | number): string | undefined;
+  }
+
   /**
    * Synchronously resolve a `moduleId` as though it were imported from `parent`
    *
@@ -1654,6 +2314,17 @@ declare module "bun" {
      * @default "warn"
      */
     logLevel?: "verbose" | "debug" | "info" | "warn" | "error";
+
+    /**
+     * Enable REPL mode transforms:
+     * - Wraps top-level inputs that appear to be object literals (inputs starting with '{' without trailing ';') in parentheses
+     * - Hoists all declarations as var for REPL persistence across vm.runInContext calls
+     * - Wraps last expression in { __proto__: null, value: expr } for result capture
+     * - Wraps code in sync/async IIFE to avoid parentheses around object literals
+     *
+     * @default false
+     */
+    replMode?: boolean;
   }
 
   /**
@@ -1760,14 +2431,15 @@ declare module "bun" {
     type Architecture = "x64" | "arm64";
     type Libc = "glibc" | "musl";
     type SIMD = "baseline" | "modern";
-    type Target =
+    type CompileTarget =
       | `bun-darwin-${Architecture}`
-      | `bun-darwin-x64-${SIMD}`
+      | `bun-darwin-${Architecture}-${SIMD}`
       | `bun-linux-${Architecture}`
       | `bun-linux-${Architecture}-${Libc}`
+      | `bun-linux-${Architecture}-${SIMD}`
+      | `bun-linux-${Architecture}-${SIMD}-${Libc}`
       | "bun-windows-x64"
-      | `bun-windows-x64-${SIMD}`
-      | `bun-linux-x64-${SIMD}-${Libc}`;
+      | `bun-windows-x64-${SIMD}`;
   }
 
   /**
@@ -1922,7 +2594,10 @@ declare module "bun" {
      * start times, but will make the final output larger and slightly increase
      * memory usage.
      *
-     * Bytecode is currently only supported for CommonJS (`format: "cjs"`).
+     * - CommonJS: works with or without `compile: true`
+     * - ESM: requires `compile: true`
+     *
+     * Without an explicit `format`, defaults to CommonJS.
      *
      * Must be `target: "bun"`
      * @default false
@@ -2102,7 +2777,7 @@ declare module "bun" {
   }
 
   interface CompileBuildOptions {
-    target?: Bun.Build.Target;
+    target?: Bun.Build.CompileTarget;
     execArgv?: string[];
     executablePath?: string;
     outfile?: string;
@@ -2184,7 +2859,7 @@ declare module "bun" {
      * });
      * ```
      */
-    compile: boolean | Bun.Build.Target | CompileBuildOptions;
+    compile: boolean | Bun.Build.CompileTarget | CompileBuildOptions;
 
     /**
      * Splitting is not currently supported with `.compile`
@@ -5007,7 +5682,7 @@ declare module "bun" {
      *
      * This will apply to all sockets from the same {@link Listener}. it is per socket only for {@link Bun.connect}.
      */
-    reload(handler: SocketHandler): void;
+    reload(options: Pick<SocketOptions<Data>, "socket">): void;
 
     /**
      * Get the server that created this socket
@@ -5350,7 +6025,7 @@ declare module "bun" {
     stop(closeActiveConnections?: boolean): void;
     ref(): void;
     unref(): void;
-    reload(options: Pick<Partial<SocketOptions>, "socket">): void;
+    reload(options: Pick<SocketOptions<Data>, "socket">): void;
     data: Data;
   }
   interface TCPSocketListener<Data = unknown> extends SocketListener<Data> {

packages/bun-types/extensions.d.ts

@@ -23,6 +23,11 @@ declare module "*.jsonc" {
   export = contents;
 }
 
+declare module "*.json5" {
+  var contents: any;
+  export = contents;
+}
+
 declare module "*/bun.lock" {
   var contents: import("bun").BunLockFile;
   export = contents;

packages/bun-types/jsx.d.ts

@@ -0,0 +1,11 @@
+export {};
+
+type ReactElement = typeof globalThis extends { React: infer React }
+  ? React extends { createElement(...args: any): infer R }
+    ? R
+    : never
+  : unknown;
+
+export namespace JSX {
+  export type Element = ReactElement;
+}

packages/bun-usockets/src/crypto/openssl.c

@@ -315,6 +315,15 @@ int us_internal_ssl_socket_is_closed(struct us_internal_ssl_socket_t *s) {
   return us_socket_is_closed(0, &s->s);
 }
 
+int us_internal_ssl_socket_is_handshake_finished(struct us_internal_ssl_socket_t *s) {
+  if (!s || !s->ssl) return 0;
+  return SSL_is_init_finished(s->ssl);
+}
+
+int us_internal_ssl_socket_handshake_callback_has_fired(struct us_internal_ssl_socket_t *s) {
+  if (!s) return 0;
+  return s->handshake_state == HANDSHAKE_COMPLETED;
+}
 
 void us_internal_trigger_handshake_callback_econnreset(struct us_internal_ssl_socket_t *s) {
   struct us_internal_ssl_socket_context_t *context =

packages/bun-usockets/src/internal/internal.h

@@ -439,6 +439,8 @@ void *us_internal_ssl_socket_ext(us_internal_ssl_socket_r s);
 void *us_internal_connecting_ssl_socket_ext(struct us_connecting_socket_t *c);
 int us_internal_ssl_socket_is_shut_down(us_internal_ssl_socket_r s);
 int us_internal_ssl_socket_is_closed(us_internal_ssl_socket_r s);
+int us_internal_ssl_socket_is_handshake_finished(us_internal_ssl_socket_r s);
+int us_internal_ssl_socket_handshake_callback_has_fired(us_internal_ssl_socket_r s);
 void us_internal_ssl_socket_shutdown(us_internal_ssl_socket_r s);
 
 struct us_internal_ssl_socket_t *us_internal_ssl_socket_context_adopt_socket(

packages/bun-usockets/src/libusockets.h

@@ -457,6 +457,12 @@ int us_socket_is_shut_down(int ssl, us_socket_r s) nonnull_fn_decl;
 /* Returns whether this socket has been closed. Only valid if memory has not yet been released. */
 int us_socket_is_closed(int ssl, us_socket_r s) nonnull_fn_decl;
 
+/* Returns 1 if the TLS handshake has completed, 0 otherwise. For non-SSL sockets, always returns 1. */
+int us_socket_is_ssl_handshake_finished(int ssl, us_socket_r s) nonnull_fn_decl;
+
+/* Returns 1 if the TLS handshake callback has been invoked, 0 otherwise. For non-SSL sockets, always returns 1. */
+int us_socket_ssl_handshake_callback_has_fired(int ssl, us_socket_r s) nonnull_fn_decl;
+
 /* Immediately closes the socket */
 struct us_socket_t *us_socket_close(int ssl, us_socket_r s, int code, void *reason) __attribute__((nonnull(2)));
 

packages/bun-usockets/src/socket.c

@@ -128,6 +128,26 @@ int us_socket_is_closed(int ssl, struct us_socket_t *s) {
     return s->flags.is_closed;
 }
 
+int us_socket_is_ssl_handshake_finished(int ssl, struct us_socket_t *s) {
+#ifndef LIBUS_NO_SSL
+    if(ssl) {
+        return us_internal_ssl_socket_is_handshake_finished((struct us_internal_ssl_socket_t *) s);
+    }
+#endif
+    // Non-SSL sockets are always "handshake finished"
+    return 1;
+}
+
+int us_socket_ssl_handshake_callback_has_fired(int ssl, struct us_socket_t *s) {
+#ifndef LIBUS_NO_SSL
+    if(ssl) {
+        return us_internal_ssl_socket_handshake_callback_has_fired((struct us_internal_ssl_socket_t *) s);
+    }
+#endif
+    // Non-SSL sockets are always "callback fired"
+    return 1;
+}
+
 int us_connecting_socket_is_closed(int ssl, struct us_connecting_socket_t *c) {
     return c->closed;
 }

packages/bun-uws/src/ChunkedEncoding.h

@@ -204,26 +204,38 @@ namespace uWS {
             }
 
             // do we have data to emit all?
-            if (data.length() >= chunkSize(state)) {
+            unsigned int remaining = chunkSize(state);
+            if (data.length() >= remaining) {
                 // emit all but 2 bytes then reset state to 0 and goto beginning
                 // not fin
                 std::string_view emitSoon;
                 bool shouldEmit = false;
-                if (chunkSize(state) > 2) {
-                    emitSoon = std::string_view(data.data(), chunkSize(state) - 2);
-                    shouldEmit = true;
+                // Validate the chunk terminator (\r\n) accounting for partial reads
+                switch (remaining) {
+                    default:
+                        // remaining > 2: emit data and validate full terminator
+                        emitSoon = std::string_view(data.data(), remaining - 2);
+                        shouldEmit = true;
+                        [[fallthrough]];
+                    case 2:
+                        // remaining >= 2: validate both \r and \n
+                        if (data[remaining - 2] != '\r' || data[remaining - 1] != '\n') {
+                            state = STATE_IS_ERROR;
+                            return std::nullopt;
+                        }
+                        break;
+                    case 1:
+                        // remaining == 1: only \n left to validate
+                        if (data[0] != '\n') {
+                            state = STATE_IS_ERROR;
+                            return std::nullopt;
+                        }
+                        break;
+                    case 0:
+                        // remaining == 0: terminator already consumed
+                        break;
                 }
-                // Validate that the chunk terminator is \r\n to prevent request smuggling
-                // The last 2 bytes of the chunk must be exactly \r\n
-                // Note: chunkSize always includes +2 for the terminator (added in consumeHexNumber),
-                // and chunks with size 0 (chunkSize == 2) are handled earlier at line 190.
-                // Therefore chunkSize >= 3 here, so no underflow is possible.
-                size_t terminatorOffset = chunkSize(state) - 2;
-                if (data[terminatorOffset] != '\r' || data[terminatorOffset + 1] != '\n') {
-                    state = STATE_IS_ERROR;
-                    return std::nullopt;
-                }
-                data.remove_prefix(chunkSize(state));
+                data.remove_prefix(remaining);
                 state = STATE_IS_CHUNKED;
                 if (shouldEmit) {
                     return emitSoon;
@@ -232,19 +244,45 @@ namespace uWS {
             } else {
                 /* We will consume all our input data */
                 std::string_view emitSoon;
-                if (chunkSize(state) > 2) {
-                    uint64_t maximalAppEmit = chunkSize(state) - 2;
-                    if (data.length() > maximalAppEmit) {
+                unsigned int size = chunkSize(state);
+                size_t len = data.length();
+                if (size > 2) {
+                    uint64_t maximalAppEmit = size - 2;
+                    if (len > maximalAppEmit) {
                         emitSoon = data.substr(0, maximalAppEmit);
+                        // Validate terminator bytes being consumed
+                        size_t terminatorBytesConsumed = len - maximalAppEmit;
+                        if (terminatorBytesConsumed >= 1 && data[maximalAppEmit] != '\r') {
+                            state = STATE_IS_ERROR;
+                            return std::nullopt;
+                        }
+                        if (terminatorBytesConsumed >= 2 && data[maximalAppEmit + 1] != '\n') {
+                            state = STATE_IS_ERROR;
+                            return std::nullopt;
+                        }
                     } else {
-                        //cb(data);
                         emitSoon = data;
                     }
+                } else if (size == 2) {
+                    // Only terminator bytes remain, validate what we have
+                    if (len >= 1 && data[0] != '\r') {
+                        state = STATE_IS_ERROR;
+                        return std::nullopt;
+                    }
+                    if (len >= 2 && data[1] != '\n') {
+                        state = STATE_IS_ERROR;
+                        return std::nullopt;
+                    }
+                } else if (size == 1) {
+                    // Only \n remains
+                    if (data[0] != '\n') {
+                        state = STATE_IS_ERROR;
+                        return std::nullopt;
+                    }
                 }
-                decChunkSize(state, (unsigned int) data.length());
+                decChunkSize(state, (unsigned int) len);
                 state |= STATE_IS_CHUNKED;
-                // new: decrease data by its size (bug)
-                data.remove_prefix(data.length()); // ny bug fix för getNextChunk
+                data.remove_prefix(len);
                 if (emitSoon.length()) {
                     return emitSoon;
                 } else {

packages/bun-uws/src/HttpParser.h

@@ -18,7 +18,7 @@
 #pragma once
 
 #ifndef UWS_HTTP_MAX_HEADERS_COUNT
-#define UWS_HTTP_MAX_HEADERS_COUNT 100
+#define UWS_HTTP_MAX_HEADERS_COUNT 200
 #endif
 
 // todo: HttpParser is in need of a few clean-ups and refactorings

patches/tinycc/CMakeLists.txt

@@ -39,6 +39,7 @@ add_compile_definitions(
   CONFIG_TCC_PREDEFS
   ONE_SOURCE=0
   TCC_LIBTCC1="\\0"
+  CONFIG_TCC_BACKTRACE=0
 )
 
 if(APPLE)

scripts/bootstrap.sh

@@ -1,5 +1,5 @@
 #!/bin/sh
-# Version: 26
+# Version: 27
 
 # A script that installs the dependencies needed to build and test Bun.
 # This should work on macOS and Linux with a POSIX shell.
@@ -1061,6 +1061,11 @@ install_build_essentials() {
 			go \
 			xz
 		install_packages apache2-utils
+		# QEMU user-mode for baseline CPU verification in CI
+		case "$arch" in
+		x64)     install_packages qemu-x86_64 ;;
+		aarch64) install_packages qemu-aarch64 ;;
+		esac
 		;;
 	esac
 

scripts/build-jsc.ts

@@ -23,7 +23,10 @@ const OS_NAME = platform().toLowerCase();
 const ARCH_NAME_RAW = arch();
 const IS_MAC = OS_NAME === "darwin";
 const IS_LINUX = OS_NAME === "linux";
-const IS_ARM64 = ARCH_NAME_RAW === "arm64" || ARCH_NAME_RAW === "aarch64";
+const IS_WINDOWS = OS_NAME === "win32";
+// On Windows, use PROCESSOR_ARCHITECTURE env var to get native arch (Bun may run under x64 emulation)
+const NATIVE_ARCH = IS_WINDOWS ? (process.env.PROCESSOR_ARCHITECTURE || ARCH_NAME_RAW).toUpperCase() : ARCH_NAME_RAW;
+const IS_ARM64 = NATIVE_ARCH === "ARM64" || NATIVE_ARCH === "AARCH64" || ARCH_NAME_RAW === "arm64";
 
 // Paths
 const ROOT_DIR = resolve(import.meta.dir, "..");
@@ -33,22 +36,54 @@ const WEBKIT_RELEASE_DIR = join(WEBKIT_BUILD_DIR, "Release");
 const WEBKIT_DEBUG_DIR = join(WEBKIT_BUILD_DIR, "Debug");
 const WEBKIT_RELEASE_DIR_LTO = join(WEBKIT_BUILD_DIR, "ReleaseLTO");
 
+// Windows ICU paths - use vcpkg static build
+// Auto-detect triplet: prefer arm64 if it exists, otherwise x64
+const VCPKG_ARM64_PATH = join(WEBKIT_DIR, "vcpkg_installed", "arm64-windows-static");
+const VCPKG_X64_PATH = join(WEBKIT_DIR, "vcpkg_installed", "x64-windows-static");
+const VCPKG_ROOT = existsSync(VCPKG_ARM64_PATH) ? VCPKG_ARM64_PATH : VCPKG_X64_PATH;
+const ICU_INCLUDE_DIR = join(VCPKG_ROOT, "include");
+
+// Get ICU library paths based on build config (debug uses 'd' suffix libraries)
+function getICULibraryPaths(config: BuildConfig) {
+  const isDebug = config === "debug";
+  // vcpkg static ICU libraries: release in lib/, debug in debug/lib/ with 'd' suffix
+  const libDir = isDebug ? join(VCPKG_ROOT, "debug", "lib") : join(VCPKG_ROOT, "lib");
+  const suffix = isDebug ? "d" : "";
+  return {
+    ICU_LIBRARY: libDir,
+    ICU_DATA_LIBRARY: join(libDir, `sicudt${suffix}.lib`),
+    ICU_I18N_LIBRARY: join(libDir, `sicuin${suffix}.lib`),
+    ICU_UC_LIBRARY: join(libDir, `sicuuc${suffix}.lib`),
+  };
+}
+
 // Homebrew prefix detection
 const HOMEBREW_PREFIX = IS_ARM64 ? "/opt/homebrew/" : "/usr/local/";
 
 // Compiler detection
 function findExecutable(names: string[]): string | null {
   for (const name of names) {
-    const result = spawnSync("which", [name], { encoding: "utf8" });
-    if (result.status === 0) {
-      return result.stdout.trim();
-    }
+    const path = Bun.which(name);
+    if (path) return path;
   }
   return null;
 }
 
-const CC = findExecutable(["clang-19", "clang"]) || "clang";
-const CXX = findExecutable(["clang++-19", "clang++"]) || "clang++";
+// Detect ccache
+const CCACHE = findExecutable(["ccache"]);
+const HAS_CCACHE = CCACHE !== null;
+
+// Configure compilers with ccache if available
+// On Windows, use clang-cl for MSVC compatibility
+const CC_BASE = IS_WINDOWS
+  ? findExecutable(["clang-cl.exe", "clang-cl"]) || "clang-cl"
+  : findExecutable(["clang-19", "clang"]) || "clang";
+const CXX_BASE = IS_WINDOWS
+  ? findExecutable(["clang-cl.exe", "clang-cl"]) || "clang-cl"
+  : findExecutable(["clang++-19", "clang++"]) || "clang++";
+
+const CC = HAS_CCACHE ? CCACHE : CC_BASE;
+const CXX = HAS_CCACHE ? CCACHE : CXX_BASE;
 
 // Build directory based on config
 const getBuildDir = (config: BuildConfig) => {
@@ -63,7 +98,7 @@ const getBuildDir = (config: BuildConfig) => {
 };
 
 // Common CMake flags
-const getCommonFlags = () => {
+const getCommonFlags = (config: BuildConfig) => {
   const flags = [
     "-DPORT=JSCOnly",
     "-DENABLE_STATIC_JSC=ON",
@@ -74,16 +109,27 @@ const getCommonFlags = () => {
     "-DENABLE_FTL_JIT=ON",
     "-G",
     "Ninja",
-    `-DCMAKE_C_COMPILER=${CC}`,
-    `-DCMAKE_CXX_COMPILER=${CXX}`,
   ];
 
+  // Configure compiler with ccache if available
+  if (HAS_CCACHE) {
+    flags.push(
+      `-DCMAKE_C_COMPILER_LAUNCHER=${CCACHE}`,
+      `-DCMAKE_CXX_COMPILER_LAUNCHER=${CCACHE}`,
+      `-DCMAKE_C_COMPILER=${CC_BASE}`,
+      `-DCMAKE_CXX_COMPILER=${CXX_BASE}`,
+    );
+  } else {
+    flags.push(`-DCMAKE_C_COMPILER=${CC}`, `-DCMAKE_CXX_COMPILER=${CXX}`);
+  }
+
   if (IS_MAC) {
     flags.push(
       "-DENABLE_SINGLE_THREADED_VM_ENTRY_SCOPE=ON",
       "-DBUN_FAST_TLS=ON",
       "-DPTHREAD_JIT_PERMISSIONS_API=1",
       "-DUSE_PTHREAD_JIT_PERMISSIONS_API=ON",
+      "-DENABLE_REMOTE_INSPECTOR=ON",
     );
   } else if (IS_LINUX) {
     flags.push(
@@ -91,6 +137,27 @@ const getCommonFlags = () => {
       "-DUSE_VISIBILITY_ATTRIBUTE=1",
       "-DENABLE_REMOTE_INSPECTOR=ON",
     );
+  } else if (IS_WINDOWS) {
+    // Find lld-link for Windows builds
+    const lldLink = findExecutable(["lld-link.exe", "lld-link"]) || "lld-link";
+    // Get ICU library paths for this build config (debug uses 'd' suffix libraries)
+    const icuPaths = getICULibraryPaths(config);
+
+    flags.push(
+      "-DENABLE_REMOTE_INSPECTOR=ON",
+      "-DUSE_VISIBILITY_ATTRIBUTE=1",
+      "-DUSE_SYSTEM_MALLOC=ON",
+      `-DCMAKE_LINKER=${lldLink}`,
+      `-DICU_ROOT=${VCPKG_ROOT}`,
+      `-DICU_LIBRARY=${icuPaths.ICU_LIBRARY}`,
+      `-DICU_INCLUDE_DIR=${ICU_INCLUDE_DIR}`,
+      // Explicitly set ICU library paths to use vcpkg static libs (debug has 'd' suffix)
+      `-DICU_DATA_LIBRARY_RELEASE=${icuPaths.ICU_DATA_LIBRARY}`,
+      `-DICU_I18N_LIBRARY_RELEASE=${icuPaths.ICU_I18N_LIBRARY}`,
+      `-DICU_UC_LIBRARY_RELEASE=${icuPaths.ICU_UC_LIBRARY}`,
+      "-DCMAKE_C_FLAGS=/DU_STATIC_IMPLEMENTATION",
+      "-DCMAKE_CXX_FLAGS=/DU_STATIC_IMPLEMENTATION /clang:-fno-c++-static-destructors",
+    );
   }
 
   return flags;
@@ -98,7 +165,7 @@ const getCommonFlags = () => {
 
 // Build-specific CMake flags
 const getBuildFlags = (config: BuildConfig) => {
-  const flags = [...getCommonFlags()];
+  const flags = [...getCommonFlags(config)];
 
   switch (config) {
     case "debug":
@@ -106,24 +173,40 @@ const getBuildFlags = (config: BuildConfig) => {
         "-DCMAKE_BUILD_TYPE=Debug",
         "-DENABLE_BUN_SKIP_FAILING_ASSERTIONS=ON",
         "-DCMAKE_EXPORT_COMPILE_COMMANDS=ON",
-        "-DENABLE_REMOTE_INSPECTOR=ON",
         "-DUSE_VISIBILITY_ATTRIBUTE=1",
       );
 
-      if (IS_MAC) {
-        // Enable address sanitizer by default on Mac debug builds
+      if (IS_MAC || IS_LINUX) {
+        // Enable address sanitizer by default on Mac/Linux debug builds
         flags.push("-DENABLE_SANITIZERS=address");
         // To disable asan, comment the line above and uncomment:
         // flags.push("-DENABLE_MALLOC_HEAP_BREAKDOWN=ON");
       }
+
+      if (IS_WINDOWS) {
+        flags.push("-DCMAKE_MSVC_RUNTIME_LIBRARY=MultiThreadedDebug");
+      }
       break;
 
     case "lto":
-      flags.push("-DCMAKE_BUILD_TYPE=Release", "-DCMAKE_C_FLAGS=-flto=full", "-DCMAKE_CXX_FLAGS=-flto=full");
+      flags.push("-DCMAKE_BUILD_TYPE=Release");
+      if (IS_WINDOWS) {
+        // On Windows, append LTO flags to existing Windows-specific flags
+        flags.push(
+          "-DCMAKE_C_FLAGS=/DU_STATIC_IMPLEMENTATION -flto=full",
+          "-DCMAKE_CXX_FLAGS=/DU_STATIC_IMPLEMENTATION /clang:-fno-c++-static-destructors -flto=full",
+          "-DCMAKE_MSVC_RUNTIME_LIBRARY=MultiThreaded",
+        );
+      } else {
+        flags.push("-DCMAKE_C_FLAGS=-flto=full", "-DCMAKE_CXX_FLAGS=-flto=full");
+      }
       break;
 
     default: // release
       flags.push("-DCMAKE_BUILD_TYPE=RelWithDebInfo");
+      if (IS_WINDOWS) {
+        flags.push("-DCMAKE_MSVC_RUNTIME_LIBRARY=MultiThreaded");
+      }
       break;
   }
 
@@ -134,17 +217,6 @@ const getBuildFlags = (config: BuildConfig) => {
 const getBuildEnv = () => {
   const env = { ...process.env };
 
-  const cflags = ["-ffat-lto-objects"];
-  const cxxflags = ["-ffat-lto-objects"];
-
-  if (IS_LINUX && buildConfig !== "lto") {
-    cflags.push("-Wl,--whole-archive");
-    cxxflags.push("-Wl,--whole-archive", "-DUSE_BUN_JSC_ADDITIONS=ON", "-DUSE_BUN_EVENT_LOOP=ON");
-  }
-
-  env.CFLAGS = (env.CFLAGS || "") + " " + cflags.join(" ");
-  env.CXXFLAGS = (env.CXXFLAGS || "") + " " + cxxflags.join(" ");
-
   if (IS_MAC) {
     env.ICU_INCLUDE_DIRS = `${HOMEBREW_PREFIX}opt/icu4c/include`;
   }
@@ -179,6 +251,9 @@ function buildJSC() {
 
   console.log(`Building JSC with configuration: ${buildConfig}`);
   console.log(`Build directory: ${buildDir}`);
+  if (HAS_CCACHE) {
+    console.log(`Using ccache for faster builds: ${CCACHE}`);
+  }
 
   // Create build directories
   if (!existsSync(buildDir)) {

scripts/build.mjs

@@ -14,6 +14,15 @@ import {
   startGroup,
 } from "./utils.mjs";
 
+// Detect Windows ARM64 - bun may run under x64 emulation (WoW64), so check multiple indicators
+const isWindowsARM64 =
+  isWindows &&
+  (process.env.PROCESSOR_ARCHITECTURE === "ARM64" ||
+    process.env.VSCMD_ARG_HOST_ARCH === "arm64" ||
+    process.env.MSYSTEM_CARCH === "aarch64" ||
+    (process.env.PROCESSOR_IDENTIFIER || "").includes("ARMv8") ||
+    process.arch === "arm64");
+
 if (globalThis.Bun) {
   await import("./glob-sources.mjs");
 }
@@ -83,6 +92,23 @@ async function build(args) {
     generateOptions["--toolchain"] = toolchainPath;
   }
 
+  // Windows ARM64: automatically set required options
+  if (isWindowsARM64) {
+    // Use clang-cl instead of MSVC cl.exe for proper ARM64 flag support
+    if (!generateOptions["-DCMAKE_C_COMPILER"]) {
+      generateOptions["-DCMAKE_C_COMPILER"] = "clang-cl";
+    }
+    if (!generateOptions["-DCMAKE_CXX_COMPILER"]) {
+      generateOptions["-DCMAKE_CXX_COMPILER"] = "clang-cl";
+    }
+    // Skip codegen by default since x64 bun crashes under WoW64 emulation
+    // Can be overridden with -DSKIP_CODEGEN=OFF once ARM64 bun is available
+    if (!generateOptions["-DSKIP_CODEGEN"]) {
+      generateOptions["-DSKIP_CODEGEN"] = "ON";
+    }
+    console.log("Windows ARM64 detected: using clang-cl and SKIP_CODEGEN=ON");
+  }
+
   const generateArgs = Object.entries(generateOptions).flatMap(([flag, value]) =>
     flag.startsWith("-D") ? [`${flag}=${value}`] : [flag, value],
   );

scripts/buildkite-failures.ts

@@ -49,9 +49,42 @@ const colors = {
 
 // Parse command line arguments
 const args = process.argv.slice(2);
+
+// Show help
+if (args.includes("--help") || args.includes("-h")) {
+  console.log(`Usage: bun run scripts/buildkite-failures.ts [options] [build-id|branch|pr-url|buildkite-url]
+
+Shows detailed error information from BuildKite build failures.
+Full logs are saved to /tmp/bun-build-{number}-{platform}-{step}.log
+
+Arguments:
+  build-id          BuildKite build number (e.g., 35051)
+  branch            Git branch name (e.g., main, claude/fix-bug)
+  pr-url            GitHub PR URL (e.g., https://github.com/oven-sh/bun/pull/26173)
+  buildkite-url     BuildKite build URL
+  #number           GitHub PR number (e.g., #26173)
+  (none)            Uses current git branch
+
+Options:
+  --flaky, -f       Include flaky test annotations
+  --warnings, -w    Include warning annotations
+  --wait            Poll continuously until build completes or fails
+  --help, -h        Show this help message
+
+Examples:
+  bun run scripts/buildkite-failures.ts                    # Current branch
+  bun run scripts/buildkite-failures.ts main               # Main branch
+  bun run scripts/buildkite-failures.ts 35051              # Build #35051
+  bun run scripts/buildkite-failures.ts #26173             # PR #26173
+  bun run scripts/buildkite-failures.ts --wait             # Wait for current branch build to complete
+`);
+  process.exit(0);
+}
+
 const showWarnings = args.includes("--warnings") || args.includes("-w");
 const showFlaky = args.includes("--flaky") || args.includes("-f");
-const inputArg = args.find(arg => !arg.startsWith("-"));
+const waitMode = args.includes("--wait");
+const inputArg = args.find(arg => !arg.startsWith("-") && !arg.startsWith("--"));
 
 // Determine what type of input we have
 let buildNumber = null;
@@ -114,38 +147,138 @@ if (!buildNumber) {
   buildNumber = match[1];
 }
 
-// Fetch build JSON
-const buildResponse = await fetch(`https://buildkite.com/bun/bun/builds/${buildNumber}.json`);
-const build = await buildResponse.json();
+// Helper to format time ago
+function formatTimeAgo(dateStr: string | null): string {
+  if (!dateStr) return "not started";
+  const date = new Date(dateStr);
+  const now = new Date();
+  const diffMs = now.getTime() - date.getTime();
+  const diffSecs = Math.floor(diffMs / 1000);
+  const diffMins = Math.floor(diffSecs / 60);
+  const diffHours = Math.floor(diffMins / 60);
+  const diffDays = Math.floor(diffHours / 24);
 
-// Calculate time ago
-const buildTime = new Date(build.started_at);
-const now = new Date();
-const diffMs = now.getTime() - buildTime.getTime();
-const diffSecs = Math.floor(diffMs / 1000);
-const diffMins = Math.floor(diffSecs / 60);
-const diffHours = Math.floor(diffMins / 60);
-const diffDays = Math.floor(diffHours / 24);
-
-let timeAgo;
-if (diffDays > 0) {
-  timeAgo = `${diffDays} day${diffDays !== 1 ? "s" : ""} ago`;
-} else if (diffHours > 0) {
-  timeAgo = `${diffHours} hour${diffHours !== 1 ? "s" : ""} ago`;
-} else if (diffMins > 0) {
-  timeAgo = `${diffMins} minute${diffMins !== 1 ? "s" : ""} ago`;
-} else {
-  timeAgo = `${diffSecs} second${diffSecs !== 1 ? "s" : ""} ago`;
+  if (diffDays > 0) return `${diffDays} day${diffDays !== 1 ? "s" : ""} ago`;
+  if (diffHours > 0) return `${diffHours} hour${diffHours !== 1 ? "s" : ""} ago`;
+  if (diffMins > 0) return `${diffMins} minute${diffMins !== 1 ? "s" : ""} ago`;
+  return `${diffSecs} second${diffSecs !== 1 ? "s" : ""} ago`;
 }
 
+// Helper to clear line for updates
+const clearLine = isTTY ? "\x1b[2K\r" : "";
+
+// Poll for build status
+let build: any;
+let pollCount = 0;
+const pollInterval = 10000; // 10 seconds
+
+while (true) {
+  // Fetch build JSON
+  const buildResponse = await fetch(`https://buildkite.com/bun/bun/builds/${buildNumber}.json`);
+  build = await buildResponse.json();
+
+  // Check for failed jobs first (even if build is still running)
+  const failedJobsEarly =
+    build.jobs?.filter(
+      (job: any) => job.exit_status && job.exit_status > 0 && !job.soft_failed && job.type === "script",
+    ) || [];
+
+  // In wait mode with failures, stop polling and show failures
+  if (waitMode && failedJobsEarly.length > 0) {
+    if (pollCount > 0) {
+      process.stdout.write(clearLine);
+    }
+    break;
+  }
+
+  // Calculate time ago (use created_at as fallback for scheduled/pending builds)
+  const timeAgo = formatTimeAgo(build.started_at || build.created_at);
+
+  // Check if build passed
+  if (build.state === "passed") {
+    if (pollCount > 0) {
+      process.stdout.write(clearLine);
+    }
+    console.log(`${timeAgo} - build #${buildNumber} https://buildkite.com/bun/bun/builds/${buildNumber}\n`);
+    console.log(`${colors.green}✅ Passed!${colors.reset}`);
+    process.exit(0);
+  }
+
+  // Check if build was canceled
+  if (build.state === "canceled" || build.state === "canceling") {
+    if (pollCount > 0) {
+      process.stdout.write(clearLine);
+    }
+    console.log(`${timeAgo} - build #${buildNumber} https://buildkite.com/bun/bun/builds/${buildNumber}\n`);
+    console.log(`${colors.dim}🚫 Build was canceled${colors.reset}`);
+    process.exit(0);
+  }
+
+  // Check if build is pending/running/scheduled
+  if (
+    build.state === "scheduled" ||
+    build.state === "running" ||
+    build.state === "creating" ||
+    build.state === "started"
+  ) {
+    const runningJobs = build.jobs?.filter((job: any) => job.state === "running") || [];
+    const pendingJobs = build.jobs?.filter((job: any) => job.state === "scheduled" || job.state === "waiting") || [];
+    const passedJobs = build.jobs?.filter((job: any) => job.state === "passed") || [];
+    const totalJobs = build.jobs?.filter((job: any) => job.type === "script")?.length || 0;
+
+    if (waitMode) {
+      // In wait mode, show a single updating line
+      let statusMsg = "";
+      if (build.state === "scheduled" || build.state === "creating") {
+        statusMsg = `⏳ Waiting... (scheduled ${formatTimeAgo(build.created_at)})`;
+      } else {
+        statusMsg = `🔄 Running... ${passedJobs.length}/${totalJobs} passed, ${runningJobs.length} running`;
+      }
+      process.stdout.write(`${clearLine}${colors.dim}${statusMsg}${colors.reset}`);
+      pollCount++;
+      await Bun.sleep(pollInterval);
+      continue;
+    } else {
+      // Not in wait mode, show full status and exit
+      console.log(`${timeAgo} - build #${buildNumber} https://buildkite.com/bun/bun/builds/${buildNumber}\n`);
+
+      if (build.state === "scheduled" || build.state === "creating") {
+        console.log(`${colors.dim}⏳ Build is scheduled/pending${colors.reset}`);
+        if (build.created_at) {
+          console.log(`${colors.dim}   Created: ${formatTimeAgo(build.created_at)}${colors.reset}`);
+        }
+      } else {
+        console.log(`${colors.dim}🔄 Build is running${colors.reset}`);
+        if (build.started_at) {
+          console.log(`${colors.dim}   Started: ${formatTimeAgo(build.started_at)}${colors.reset}`);
+        }
+        console.log(
+          `${colors.dim}   Progress: ${passedJobs.length}/${totalJobs} jobs passed, ${runningJobs.length} running, ${pendingJobs.length} pending${colors.reset}`,
+        );
+
+        if (runningJobs.length > 0) {
+          console.log(`\n${colors.dim}Running jobs:${colors.reset}`);
+          for (const job of runningJobs.slice(0, 5)) {
+            const name = job.name || job.label || "Unknown";
+            console.log(`   ${colors.dim}• ${name}${colors.reset}`);
+          }
+          if (runningJobs.length > 5) {
+            console.log(`   ${colors.dim}... and ${runningJobs.length - 5} more${colors.reset}`);
+          }
+        }
+      }
+      process.exit(0);
+    }
+  }
+
+  // Build is in a terminal state (failed, etc.) - break out of loop
+  break;
+}
+
+// Print header for failed build
+const timeAgo = formatTimeAgo(build.started_at || build.created_at);
 console.log(`${timeAgo} - build #${buildNumber} https://buildkite.com/bun/bun/builds/${buildNumber}\n`);
 
-// Check if build passed
-if (build.state === "passed") {
-  console.log(`${colors.green}✅ Passed!${colors.reset}`);
-  process.exit(0);
-}
-
 // Get failed jobs
 const failedJobs =
   build.jobs?.filter(job => job.exit_status && job.exit_status > 0 && !job.soft_failed && job.type === "script") || [];
@@ -734,7 +867,212 @@ if (registerRequestIndex !== -1) {
     console.log(`  https://buildkite.com/bun/bun/builds/${buildNumber}#annotations`);
   }
 } else {
-  console.log(`\n${colors.red}${colors.bold}${failedJobs.length} job failures${colors.reset}\n`);
-  console.log("View detailed results at:");
-  console.log(`  https://buildkite.com/bun/bun/builds/${buildNumber}#annotations`);
+  // No annotations found - show detailed job failure information
+  if (failedJobs.length > 0) {
+    console.log(`\n${colors.red}${colors.bold}${failedJobs.length} job failures${colors.reset}\n`);
+
+    // Show annotation counts if available
+    const annotationCounts = build.annotation_counts_by_style;
+    if (annotationCounts) {
+      const errors = annotationCounts.error || 0;
+      const warnings = annotationCounts.warning || 0;
+      if (errors > 0 || warnings > 0) {
+        const parts = [];
+        if (errors > 0) parts.push(`${errors} error${errors !== 1 ? "s" : ""}`);
+        if (warnings > 0) parts.push(`${warnings} warning${warnings !== 1 ? "s" : ""}`);
+        console.log(
+          `${colors.dim}Annotations: ${parts.join(", ")} - view at https://buildkite.com/bun/bun/builds/${buildNumber}#annotations${colors.reset}\n`,
+        );
+      }
+    }
+
+    // Group jobs by type
+    const buildJobs = failedJobs.filter(job => (job.name || job.label || "").includes("build-"));
+    const testJobs = failedJobs.filter(job => (job.name || job.label || "").includes("test"));
+    const otherJobs = failedJobs.filter(
+      job => !(job.name || job.label || "").includes("build-") && !(job.name || job.label || "").includes("test"),
+    );
+
+    // Display build failures
+    if (buildJobs.length > 0) {
+      console.log(
+        `${colors.bgRed}${colors.white}${colors.bold} Build Failures (${buildJobs.length}) ${colors.reset}\n`,
+      );
+      for (const job of buildJobs) {
+        const name = (job.name || job.label || "Unknown").replace(/^:([^:]+):/, (_, emoji) => {
+          const platform = emoji.toLowerCase();
+          return platformMap[platform] || `:${emoji}:`;
+        });
+        const duration =
+          job.started_at && job.finished_at
+            ? `${((new Date(job.finished_at).getTime() - new Date(job.started_at).getTime()) / 1000).toFixed(0)}s`
+            : "N/A";
+        console.log(`  ${colors.red}✗${colors.reset} ${name}`);
+        console.log(`    ${colors.dim}Duration: ${duration} | Exit: ${job.exit_status}${colors.reset}`);
+        console.log(`    ${colors.dim}https://buildkite.com${job.path}${colors.reset}`);
+        console.log();
+      }
+    }
+
+    // Display test failures
+    if (testJobs.length > 0) {
+      console.log(`${colors.bgBlue}${colors.white}${colors.bold} Test Failures (${testJobs.length}) ${colors.reset}\n`);
+      for (const job of testJobs) {
+        const name = (job.name || job.label || "Unknown").replace(/^:([^:]+):/, (_, emoji) => {
+          const platform = emoji.toLowerCase();
+          return platformMap[platform] || `:${emoji}:`;
+        });
+        const duration =
+          job.started_at && job.finished_at
+            ? `${((new Date(job.finished_at).getTime() - new Date(job.started_at).getTime()) / 1000).toFixed(0)}s`
+            : "N/A";
+        console.log(`  ${colors.red}✗${colors.reset} ${name}`);
+        console.log(`    ${colors.dim}Duration: ${duration} | Exit: ${job.exit_status}${colors.reset}`);
+        console.log(`    ${colors.dim}https://buildkite.com${job.path}${colors.reset}`);
+        console.log();
+      }
+    }
+
+    // Display other failures
+    if (otherJobs.length > 0) {
+      console.log(
+        `${colors.bgBlue}${colors.white}${colors.bold} Other Failures (${otherJobs.length}) ${colors.reset}\n`,
+      );
+      for (const job of otherJobs) {
+        const name = (job.name || job.label || "Unknown").replace(/^:([^:]+):/, (_, emoji) => {
+          const platform = emoji.toLowerCase();
+          return platformMap[platform] || `:${emoji}:`;
+        });
+        const duration =
+          job.started_at && job.finished_at
+            ? `${((new Date(job.finished_at).getTime() - new Date(job.started_at).getTime()) / 1000).toFixed(0)}s`
+            : "N/A";
+        console.log(`  ${colors.red}✗${colors.reset} ${name}`);
+        console.log(`    ${colors.dim}Duration: ${duration} | Exit: ${job.exit_status}${colors.reset}`);
+        console.log(`    ${colors.dim}https://buildkite.com${job.path}${colors.reset}`);
+        console.log();
+      }
+    }
+
+    // Fetch and display logs for all failed jobs
+    // Use the public BuildKite log endpoint
+    console.log(`${colors.dim}Fetching logs for ${failedJobs.length} failed jobs...${colors.reset}\n`);
+
+    for (const job of failedJobs) {
+      const name = (job.name || job.label || "Unknown").replace(/^:([^:]+):/, (_, emoji) => {
+        const platform = emoji.toLowerCase();
+        return platformMap[platform] || `:${emoji}:`;
+      });
+
+      // Create a sanitized filename from the job name
+      // e.g., ":darwin: aarch64 - build-cpp" -> "darwin-aarch64-build-cpp"
+      const sanitizedName = (job.name || job.label || "unknown")
+        .replace(/^:([^:]+):\s*/, "$1-") // :darwin: -> darwin-
+        .replace(/\s+-\s+/g, "-") // " - " -> "-"
+        .replace(/[^a-zA-Z0-9-]/g, "-") // Replace other chars with -
+        .replace(/-+/g, "-") // Collapse multiple -
+        .replace(/^-|-$/g, "") // Remove leading/trailing -
+        .toLowerCase();
+
+      const logFilePath = `/tmp/bun-build-${buildNumber}-${sanitizedName}.log`;
+
+      try {
+        const logResponse = await fetch(
+          `https://buildkite.com/organizations/bun/pipelines/bun/builds/${buildNumber}/jobs/${job.id}/log`,
+        );
+
+        if (logResponse.ok) {
+          const logData = await logResponse.json();
+          let output = logData.output || "";
+
+          // Convert HTML to readable text (without ANSI codes for file output)
+          const plainOutput = output
+            // Remove timestamp tags
+            .replace(/<time[^>]*>[^<]*<\/time>/g, "")
+            // Remove all span tags
+            .replace(/<span[^>]*>([^<]*)<\/span>/g, "$1")
+            // Remove remaining HTML tags
+            .replace(/<[^>]+>/g, "")
+            // Decode HTML entities
+            .replace(/&amp;/g, "&")
+            .replace(/&lt;/g, "<")
+            .replace(/&gt;/g, ">")
+            .replace(/&quot;/g, '"')
+            .replace(/&#39;/g, "'")
+            .replace(/&#47;/g, "/")
+            .replace(/&nbsp;/g, " ");
+
+          // Write the full log to a file
+          await Bun.write(logFilePath, plainOutput);
+
+          // Extract unique error messages for display
+          const lines = plainOutput.split("\n");
+          const uniqueErrors = new Set<string>();
+
+          for (let i = 0; i < lines.length; i++) {
+            const line = lines[i];
+
+            // Look for actual error messages
+            const isError =
+              (line.includes("error:") && !line.includes('error: script "') && !line.includes("error: exit")) ||
+              line.includes("fatal error:") ||
+              line.includes("panic:") ||
+              line.includes("undefined reference");
+
+            if (isError) {
+              // Extract just the error message part (remove path prefixes and timestamps)
+              const errorMsg = line
+                .replace(/^.*?\d{4}-\d{2}-\d{2}T[\d:.]+Z/, "") // Remove timestamps
+                .replace(/^.*?\/[^\s]*:\d+:\d+:\s*/, "") // Remove file paths
+                .trim();
+
+              if (errorMsg && !uniqueErrors.has(errorMsg)) {
+                uniqueErrors.add(errorMsg);
+              }
+            }
+          }
+
+          // Display job info with log file path
+          console.log(`${colors.bgBlue}${colors.white}${colors.bold} ${name} ${colors.reset}`);
+          console.log(`  ${colors.dim}Log: ${logFilePath}${colors.reset}`);
+
+          if (uniqueErrors.size > 0) {
+            console.log(`  ${colors.red}Errors (${uniqueErrors.size}):${colors.reset}`);
+            let count = 0;
+            for (const err of uniqueErrors) {
+              if (count >= 5) {
+                console.log(`    ${colors.dim}... and ${uniqueErrors.size - 5} more${colors.reset}`);
+                break;
+              }
+              console.log(`    ${colors.red}•${colors.reset} ${err.slice(0, 120)}${err.length > 120 ? "..." : ""}`);
+              count++;
+            }
+          } else {
+            // Show last few lines as a preview
+            const lastLines = lines.slice(-5).filter(l => l.trim());
+            if (lastLines.length > 0) {
+              console.log(`  ${colors.dim}Last output:${colors.reset}`);
+              for (const line of lastLines) {
+                console.log(`    ${colors.dim}${line.slice(0, 100)}${line.length > 100 ? "..." : ""}${colors.reset}`);
+              }
+            }
+          }
+
+          if (logData.truncated) {
+            console.log(`  ${colors.dim}(Log was truncated by BuildKite)${colors.reset}`);
+          }
+        } else {
+          console.log(`${colors.bgBlue}${colors.white}${colors.bold} ${name} ${colors.reset}`);
+          console.log(`  ${colors.dim}Failed to fetch log: ${logResponse.status}${colors.reset}`);
+        }
+      } catch (e) {
+        console.log(`${colors.bgBlue}${colors.white}${colors.bold} ${name} ${colors.reset}`);
+        console.log(`  ${colors.dim}Error fetching log: ${e.message}${colors.reset}`);
+      }
+      console.log();
+    }
+  } else {
+    console.log("View detailed results at:");
+    console.log(`  https://buildkite.com/bun/bun/builds/${buildNumber}#annotations`);
+  }
 }

scripts/runner.node.mjs

@@ -1585,6 +1585,9 @@ function isNodeTest(path) {
   if (isCI && isMacOS && isX64) {
     return false;
   }
+  if (!isJavaScript(path)) {
+    return false;
+  }
   const unixPath = path.replaceAll(sep, "/");
   return (
     unixPath.includes("js/node/test/parallel/") ||

scripts/update-uucode.sh

@@ -0,0 +1,82 @@
+#!/bin/bash
+# Updates the vendored uucode library and regenerates grapheme tables.
+#
+# Usage:
+#   ./scripts/update-uucode.sh                    # update from default URL
+#   ./scripts/update-uucode.sh /path/to/uucode    # update from local directory
+#   ./scripts/update-uucode.sh https://url.tar.gz # update from URL
+#
+# After running, verify with:
+#   bun bd test test/js/bun/util/stringWidth.test.ts
+
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+BUN_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"
+UUCODE_DIR="$BUN_ROOT/src/deps/uucode"
+ZIG="$BUN_ROOT/vendor/zig/zig"
+
+if [ ! -x "$ZIG" ]; then
+    echo "error: zig not found at $ZIG"
+    echo "       run scripts/bootstrap.sh first"
+    exit 1
+fi
+
+update_from_dir() {
+    local src="$1"
+    echo "Updating uucode from: $src"
+    rm -rf "$UUCODE_DIR"
+    mkdir -p "$UUCODE_DIR"
+    cp -r "$src"/* "$UUCODE_DIR/"
+}
+
+update_from_url() {
+    local url="$1"
+    local tmp
+    tmp=$(mktemp -d)
+    trap "rm -rf $tmp" EXIT
+
+    echo "Downloading uucode from: $url"
+    curl -fsSL "$url" | tar -xz -C "$tmp" --strip-components=1
+
+    update_from_dir "$tmp"
+}
+
+# Handle source argument
+if [ $# -ge 1 ]; then
+    SOURCE="$1"
+    if [ -d "$SOURCE" ]; then
+        update_from_dir "$SOURCE"
+    elif [[ "$SOURCE" == http* ]]; then
+        update_from_url "$SOURCE"
+    else
+        echo "error: argument must be a directory or URL"
+        exit 1
+    fi
+else
+    # Default: use the zig global cache if available
+    CACHED=$(find "$HOME/.cache/zig/p" -maxdepth 1 -name "uucode-*" -type d 2>/dev/null | sort -V | tail -1)
+    if [ -n "$CACHED" ]; then
+        update_from_dir "$CACHED"
+    else
+        echo "error: no uucode source specified and none found in zig cache"
+        echo ""
+        echo "usage: $0 <path-to-uucode-dir-or-url>"
+        exit 1
+    fi
+fi
+
+echo ""
+echo "Regenerating grapheme tables..."
+cd "$BUN_ROOT"
+"$ZIG" build generate-grapheme-tables
+
+echo ""
+echo "Done. Updated files:"
+echo "  src/deps/uucode/         (vendored library)"
+echo "  src/string/immutable/grapheme_tables.zig (regenerated)"
+echo ""
+echo "Next steps:"
+echo "  1. bun bd test test/js/bun/util/stringWidth.test.ts"
+echo "  2. git add src/deps/uucode src/string/immutable/grapheme_tables.zig"
+echo "  3. git commit -m 'Update uucode to <version>'"

scripts/verify-baseline-cpu.sh

@@ -0,0 +1,100 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# Verify that a Bun binary doesn't use CPU instructions beyond its baseline target.
+# Uses QEMU user-mode emulation with restricted CPU features.
+# Any illegal instruction (SIGILL) causes exit code 132 and fails the build.
+#
+# QEMU must be pre-installed in the CI image (see .buildkite/Dockerfile and
+# scripts/bootstrap.sh).
+
+ARCH=""
+BINARY=""
+
+while [[ $# -gt 0 ]]; do
+  case $1 in
+    --arch) ARCH="$2"; shift 2 ;;
+    --binary) BINARY="$2"; shift 2 ;;
+    *) echo "Unknown arg: $1"; exit 1 ;;
+  esac
+done
+
+if [ -z "$ARCH" ] || [ -z "$BINARY" ]; then
+  echo "Usage: $0 --arch <x64|aarch64> --binary <path>"
+  exit 1
+fi
+
+if [ ! -f "$BINARY" ]; then
+  echo "ERROR: Binary not found: $BINARY"
+  exit 1
+fi
+
+# Select QEMU binary and CPU model
+HOST_ARCH=$(uname -m)
+if [ "$ARCH" = "x64" ]; then
+  QEMU_BIN="qemu-x86_64"
+  if [ -f "/usr/bin/qemu-x86_64-static" ]; then
+    QEMU_BIN="qemu-x86_64-static"
+  fi
+  QEMU_CPU="Nehalem"
+  CPU_DESC="Nehalem (SSE4.2, no AVX/AVX2/AVX512)"
+elif [ "$ARCH" = "aarch64" ]; then
+  QEMU_BIN="qemu-aarch64"
+  if [ -f "/usr/bin/qemu-aarch64-static" ]; then
+    QEMU_BIN="qemu-aarch64-static"
+  fi
+  # cortex-a53 is ARMv8.0-A (no LSE atomics, no SVE). It's the most widely
+  # supported ARMv8.0 model across QEMU versions.
+  QEMU_CPU="cortex-a53"
+  CPU_DESC="Cortex-A53 (ARMv8.0-A+CRC, no LSE/SVE)"
+else
+  echo "ERROR: Unknown arch: $ARCH"
+  exit 1
+fi
+
+if ! command -v "$QEMU_BIN" &>/dev/null; then
+  echo "ERROR: $QEMU_BIN not found. It must be pre-installed in the CI image."
+  exit 1
+fi
+
+BINARY_NAME=$(basename "$BINARY")
+
+echo "--- Verifying $BINARY_NAME on $CPU_DESC"
+echo "    Binary: $BINARY"
+echo "    QEMU:   $QEMU_BIN -cpu $QEMU_CPU"
+echo "    Host:   $HOST_ARCH"
+echo ""
+
+run_test() {
+  local label="$1"
+  shift
+  echo "+++ $BINARY_NAME: $label"
+  if "$QEMU_BIN" -cpu "$QEMU_CPU" "$@"; then
+    echo "    PASS"
+    return 0
+  else
+    local exit_code=$?
+    echo ""
+    if [ $exit_code -eq 132 ]; then
+      echo "    FAIL: Illegal instruction (SIGILL)"
+      echo ""
+      echo "    The $BINARY_NAME binary uses CPU instructions not available on $QEMU_CPU."
+      if [ "$ARCH" = "x64" ]; then
+        echo "    The baseline x64 build targets Nehalem (SSE4.2)."
+        echo "    AVX, AVX2, and AVX512 instructions are not allowed."
+      else
+        echo "    The aarch64 build targets Cortex-A53 (ARMv8.0-A+CRC)."
+        echo "    LSE atomics, SVE, and dotprod instructions are not allowed."
+      fi
+    else
+      echo "    FAIL: exit code $exit_code"
+    fi
+    exit $exit_code
+  fi
+}
+
+run_test "bun --version" "$BINARY" --version
+run_test "bun -e eval" "$BINARY" -e "console.log(JSON.stringify({ok:1+1}))"
+
+echo ""
+echo "    All checks passed for $BINARY_NAME on $QEMU_CPU."

scripts/verify-jit-stress-qemu.sh

@@ -0,0 +1,148 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# Run JSC JIT stress tests under QEMU to verify that JIT-compiled code
+# doesn't use CPU instructions beyond the baseline target.
+#
+# This script exercises all JIT tiers (DFG, FTL, Wasm BBQ/OMG) and catches
+# cases where JIT-generated code emits AVX instructions on x64 or LSE
+# atomics on aarch64.
+#
+# See: test/js/bun/jsc-stress/ for the test fixtures.
+
+ARCH=""
+BINARY=""
+
+while [[ $# -gt 0 ]]; do
+  case $1 in
+    --arch) ARCH="$2"; shift 2 ;;
+    --binary) BINARY="$2"; shift 2 ;;
+    *) echo "Unknown arg: $1"; exit 1 ;;
+  esac
+done
+
+if [ -z "$ARCH" ] || [ -z "$BINARY" ]; then
+  echo "Usage: $0 --arch <x64|aarch64> --binary <path>"
+  exit 1
+fi
+
+if [ ! -f "$BINARY" ]; then
+  echo "ERROR: Binary not found: $BINARY"
+  exit 1
+fi
+
+# Convert to absolute path for use after pushd
+BINARY="$(cd "$(dirname "$BINARY")" && pwd)/$(basename "$BINARY")"
+
+# Select QEMU binary and CPU model
+if [ "$ARCH" = "x64" ]; then
+  QEMU_BIN="qemu-x86_64"
+  if [ -f "/usr/bin/qemu-x86_64-static" ]; then
+    QEMU_BIN="qemu-x86_64-static"
+  fi
+  QEMU_CPU="Nehalem"
+  CPU_DESC="Nehalem (SSE4.2, no AVX/AVX2/AVX512)"
+elif [ "$ARCH" = "aarch64" ]; then
+  QEMU_BIN="qemu-aarch64"
+  if [ -f "/usr/bin/qemu-aarch64-static" ]; then
+    QEMU_BIN="qemu-aarch64-static"
+  fi
+  QEMU_CPU="cortex-a53"
+  CPU_DESC="Cortex-A53 (ARMv8.0-A+CRC, no LSE/SVE)"
+else
+  echo "ERROR: Unknown arch: $ARCH"
+  exit 1
+fi
+
+if ! command -v "$QEMU_BIN" &>/dev/null; then
+  echo "ERROR: $QEMU_BIN not found. It must be pre-installed in the CI image."
+  exit 1
+fi
+
+BINARY_NAME=$(basename "$BINARY")
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+REPO_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"
+FIXTURES_DIR="$REPO_ROOT/test/js/bun/jsc-stress/fixtures"
+WASM_FIXTURES_DIR="$FIXTURES_DIR/wasm"
+PRELOAD_PATH="$REPO_ROOT/test/js/bun/jsc-stress/preload.js"
+
+echo "--- Running JSC JIT stress tests on $CPU_DESC"
+echo "    Binary: $BINARY"
+echo "    QEMU:   $QEMU_BIN -cpu $QEMU_CPU"
+echo ""
+
+SIGILL_FAILURES=0
+OTHER_FAILURES=0
+PASSED=0
+
+run_fixture() {
+  local fixture="$1"
+  local fixture_name
+  fixture_name=$(basename "$fixture")
+
+  echo "+++ $fixture_name"
+  if "$QEMU_BIN" -cpu "$QEMU_CPU" "$BINARY" --preload "$PRELOAD_PATH" "$fixture" 2>&1; then
+    echo "    PASS"
+    ((PASSED++))
+    return 0
+  else
+    local exit_code=$?
+    if [ $exit_code -eq 132 ]; then
+      echo "    FAIL: Illegal instruction (SIGILL)"
+      echo ""
+      echo "    JIT-compiled code in $fixture_name uses CPU instructions not available on $QEMU_CPU."
+      if [ "$ARCH" = "x64" ]; then
+        echo "    The baseline x64 build targets Nehalem (SSE4.2)."
+        echo "    JIT must not emit AVX, AVX2, or AVX512 instructions."
+      else
+        echo "    The aarch64 build targets Cortex-A53 (ARMv8.0-A+CRC)."
+        echo "    JIT must not emit LSE atomics, SVE, or dotprod instructions."
+      fi
+      ((SIGILL_FAILURES++))
+    else
+      # Non-SIGILL failures are warnings (test issues, not CPU instruction issues)
+      echo "    WARN: exit code $exit_code (not a CPU instruction issue)"
+      ((OTHER_FAILURES++))
+    fi
+    return $exit_code
+  fi
+}
+
+# Run JS fixtures (DFG/FTL)
+echo "--- JS fixtures (DFG/FTL)"
+for fixture in "$FIXTURES_DIR"/*.js; do
+  if [ -f "$fixture" ]; then
+    run_fixture "$fixture" || true
+  fi
+done
+
+# Run Wasm fixtures (BBQ/OMG)
+echo "--- Wasm fixtures (BBQ/OMG)"
+for fixture in "$WASM_FIXTURES_DIR"/*.js; do
+  if [ -f "$fixture" ]; then
+    # Wasm tests need to run from the wasm fixtures directory
+    # because they reference .wasm files relative to the script
+    pushd "$WASM_FIXTURES_DIR" > /dev/null
+    run_fixture "$fixture" || true
+    popd > /dev/null
+  fi
+done
+
+echo ""
+echo "--- Summary"
+echo "    Passed: $PASSED"
+echo "    SIGILL failures: $SIGILL_FAILURES"
+echo "    Other failures: $OTHER_FAILURES (warnings, not CPU instruction issues)"
+echo ""
+
+if [ $SIGILL_FAILURES -gt 0 ]; then
+  echo "    FAILED: JIT-generated code uses unsupported CPU instructions."
+  exit 1
+fi
+
+if [ $OTHER_FAILURES -gt 0 ]; then
+  echo "    Some tests failed for reasons unrelated to CPU instructions."
+  echo "    These are warnings and do not indicate JIT instruction issues."
+fi
+
+echo "    All JIT stress tests passed on $QEMU_CPU (no SIGILL)."

scripts/vs-shell.ps1

@@ -3,6 +3,10 @@
 
 $ErrorActionPreference = "Stop"
 
+# Detect system architecture
+$script:IsARM64 = [System.Runtime.InteropServices.RuntimeInformation]::OSArchitecture -eq [System.Runtime.InteropServices.Architecture]::Arm64
+$script:VsArch = if ($script:IsARM64) { "arm64" } else { "amd64" }
+
 if($env:VSINSTALLDIR -eq $null) {
   Write-Host "Loading Visual Studio environment, this may take a second..."
 
@@ -23,14 +27,14 @@ if($env:VSINSTALLDIR -eq $null) {
   Push-Location $vsDir
   try {
     $vsShell = (Join-Path -Path $vsDir -ChildPath "Common7\Tools\Launch-VsDevShell.ps1")
-    . $vsShell -Arch amd64 -HostArch amd64
+    . $vsShell -Arch $script:VsArch -HostArch $script:VsArch
   } finally {
     Pop-Location
   }
 }
 
 if($env:VSCMD_ARG_TGT_ARCH -eq "x86") {
-  throw "Visual Studio environment is targeting 32 bit, but only 64 bit is supported."
+  throw "Visual Studio environment is targeting 32 bit x86, but only 64-bit architectures (x64/arm64) are supported."
 }
 
 if ($args.Count -gt 0) {