Bun

Fixes 57 bugs (addressing 150 👍) Bun's CSS bundler is here (and very experimental). `bun publish` is a drop-in replacement for `npm publish`. `bun build --bytecode` compiles to bytecode leading to 2x faster start time. Bun.color() formats and normalizes colors. `bun pm whoami` prints your npm usern...

Support for `TextEncoderStream` and `TextDecoderStream`, 50% faster `console.log(string)`, support for `Float16Array`, Node.js<>Bun IPC on Windows, truncate large arrays in `console.log()`, and many more bug fixes and Node.js compatibility improvements.

Fixes 72 bugs (addressing 63 👍). 30% faster fetch() decompression, New --fetch-preconnect flag, improved Remix support, Bun gets 4 MB smaller on Linux, bundle packages excluding dependencies, many bundler fixes and node compatibility improvements.

Fixes 54 bugs (addressing 248 👍). JavaScript gets faster on Windows. Raspberry Pi 4 support returns. `_auth` support in `.npmrc`. `bun install` preserves package.json indentation. `aws-cdk-lib` support. Memory leak fixes in `new Response(request)` and `fs.readdir`. Several reliability improvements....

Fixes 55 bugs (addressing 493 👍). Support for npmrc. Improved constant folding & enum inlining. Improved console.log output for functions. Fixes patching dependencies in workspaces. Fixes several bugs in `bun install` when linking binaries. Fixes a crash in `dns.lookup`, and normalizes DNS errors t...

Fixes 63 bugs (addressing 519 👍). Patch node_modules with bun patch. ORM-less object mapping in bun:sqlite. Log fetch() calls as curl commands. Node.js compatibility improvements. bun install bugfixes, bun:sqlite bugfixes, WebSocket fixes, Windows bugfixes

Fixes 54 bugs (addressing 184 👍). Support for `process.on("uncaughtException")` and `process.on("unhandledRejection")`, Brotli support in `node:zlib`, Faster JSON.parse, `[Symbol.dispose]` in Bun APIs, fixes lots of crashes on Windows, and many other bugfixes.

Fixes 5 bugs. bun install gets 50% faster on Windows. A bug that could cause bun install to hang in rare cases has been fixed. A bug where some errors in bun install would not produce a non-zero exit code has been fixed. A bug that could cause specific certain combinations of dependencies to fail to...

Fixes 4 bugs (addressing 44 👍 reactions). EBUSY on Windows in vite dev, next dev, and saving bun.lockb has been fixed. Object cloning gets 6x faster. Bun Shell gets support for seq, yes, basename and dirname. A TypeScript parsing edgecase has been fixed. A bug causing 'unreachable code' errors has ...

Fixes 20 bugs (addressing 60 👍). Add subshell and positional argument support to Bun Shell, fixing an issue with bun install + sharp on Windows. Printed source code in errors no longer fill up your terminal. Upgrades JavaScriptCore, which includes performance improvements to RegExp, typed arrays, S...

Bun now supports Windows!

Fixes 13 bugs. Adds support for `fs.openAsBlob` and `fs.opendir`, fixes edgecase in bun install with multiple `bin` entries in `package.json`, fixes `bun build --target bun` encoding, fixes bug with process.stdin & process.stdout, fixes bug in http2, fixes bug with .env in bun run, fixes various Bun...

Fixes 7 bugs, bunx uses less memory, bun install gets faster on Docker & WSL, a conflicting devDependency hoisting bug is fixed, a cyclical CommonJS & ESM import crash is fixed, cross-mount fs.cp & fs.copyFile get 50% faster on Linux, and reliability improvements for bun install & bun's runtime

Fixes 13 bugs, including 3 I/O regressions from v1.0.31. Improves Node.js compatibility. 'ws' package can now send & receive ping/pong events. util.promisify'd setTimeout setInterval, setImmediate work now. FileHandle methods have been implemented

Fixes 54 bugs (addresses 113 👍 reactions), introduces `bun --print`, `<stdin> | bun run -`, `bun add --trust`, `fetch()` with Unix sockets, fixes macOS binary size regression, fixes high CPU usage bug in spawn() on older linux, adds `util.styleText`, Node.js compatibiltiy improvements, bun install ...

Fixes 27 bugs (addressing 103 👍 reactions), fixes an 8x perf regression in Bun.serve(), adds a new `--conditions` flag to `bun build` and Bun's runtime, adds support for `expect.assertions()` and `expect.hasAssertions()` in Bun's test runner, fixes crashes and improves Node.js compatibility

Fixes 8 bugs. Bun.stringWidth(a) is a ~6,756x faster drop-in replacement for the popular 'string-width' package. bunx checks for updates more frequently. Adds expect().toBeOneOf() in bun:test. Memory leak impacting Prisma is fixed. Shell now supports advanced redirects like '2>&1', '&>'. Reliability...

Fixes 6 bugs (addressing 26 👍 reactions). Fixes bugs impacting Prisma and Astro, 'events', 'readline', and 'http2'. Fixes a bug in Bun Shell involving stdin redirection and fixes bugs in bun:test with test.each and describe.only

Fixes 72 bugs (addressing 192 👍 reactions), Bun Shell supports throwing on non-zero exit codes, stream Response bodies using async generators, improves reliability of fetch(), http2 client, Bun.Glob and Bun Shell. Fixes a regression with bun --watch on Linux. Improves Node.js compatibility

Fixes 30 bugs (addressing 60 👍 reactions), adds support for multi-statement queries in bun:sqlite, makes bun --watch more reliable in longer-running sessions, Bun.FileSystemRouter now supports more than 64 routes, fixes a bug with expect().toStrictEqual(), fixes 2 bugs with error.stack, improves N...

Fixes 4 bugs, adds vm.createScript. Fixes a crash in fs.readFile, a crash in Bun.file().text(), a crash in IPC, and a transpiler bug involving loose equals

The Bun Shell is a cross-platform shell that allows you to run shell scripts in JavaScript &amp; TypeScript

Fixes 9 bugs and adds Bun Shell, a fast cross-platform shell with seamless JavaScript interop. Fixes a socket timeout bug, a potential crash when socket closes, a Node.js compatibility issue with Hapi, a process.exit bug, and bun install binlinking bug, bun inspect regression, and bun:test expect()....

Fixes 40 bugs (addressing 194 👍 reactions). import &amp; embed sqlite databases in Bun, Resource Management ('using' TC39 stage3) support, bundler improvements when building for Node.js, bugfix for peer dependency resolution, semver bugfix, 4% faster TCP on linux, Node.js compatibility improvements...

Fixes `bun install` issues on Vercel, adds `performance.mark()` APIs, adds `child_process` support for extra pipes, makes `Buffer.concat` 10% - 400% faster, adds `toBeEmptyObject` and `toContainKeys` matchers, fixes `console.table` width using emojis, and adds support for `argv` and `execArgv` optio...

Fixes 33 bugs (addressing 80 👍 reactions). console.table() support. Bun.write, Bun.file, and bun:sqlite use less memory. Large file uploads with FormData use less memory. bun:sqlite error messages get more detailed. Memory leak in errors from node:fs fixed. Node.js compatibility improvements, and m...

Bun implements a set of utilities that are commonly required by developers.

Reduced memory usage for fs.readlink, fs.writeFile, fs.stat and HTMLRewriter. Fixes a regression where setTimeout caused high CPU usage on Linux. Bun.spawn shows how much CPU &amp; memory the process used. HTMLRewriter.transform now supports strings and ArrayBuffer. fs.writeFile() and fs.readFile() ...

Fixes 26 bugs (addressing 92 👍 reactions). Use @types/bun instead of bun-types. Fixes --frozen-lockfile bug. bcrypt &amp; argon2 packages now work. setTimeout &amp; setInterval get 4x higher throughput. module mocks in bun:test resolve specifiers. Optimized spawnSync() for large stdio on Linux. Bun...

Fixes 27 bugs (addressing 28 👍 reactions). A hang impacting create-vite &amp; create-next &amp; stdin has been fixed. Lifecycle scripts reporting "node" or "node-gyp" not found has been fixed. expect().rejects works like Jest now, and more bug fixes

Fixes 15 bugs (addressing 152 👍 reactions). bun install postinstall scripts run for top 500 packages, `bunx supabase` starts 30x faster than `npx supabase`, `bunx esbuild` starts 50x faster than `npx esbuild` and bugfixes to bun install

Fixes 49 bugs (addressing 38 👍 reactions). Concurrent IO for Bun.file &amp; Bun.write gets 3x faster and now supports Google Cloud Run &amp; Vercel, Bun.write auto-creates the parent directory if it doesn't exist, `expect.extend` inside of preload works, `napi_create_object` gets 2.5x faster, bugfi...

Fixes 23 bugs (addressing 117 👍 reactions), `tsc` starts 2x faster, prettier 40% faster. Stable `WebSocket` client, syntax-highlighted errors, cleaner stack traces, add custom test matchers with `expect.extend()`, TensorFlow.js support, fs.readdir recursive is 40x faster than in Node, and more.

Introduces `Bun.Glob` - a fast glob matcher, fixes a race condition when extracting dependencies during `bun install`, improves TypeScript module resolution in `node_modules`, makes error messages easier to read, and more fixes.

Fixes 14 bugs (addressing 102 👍 reactions), node:http gets 14% faster, stability improvements to Bun for Linux ARM64, bun install bugfix, and node:http bugfixes

Fixes 138 bugs (addressing 257 👍 reactions), makes `require()` use 30% less memory, adds module mocking to `bun test`, and improves reliability of `bun install` and Bun.spawn

Fixes 59 bugs (addressing 78 👍 reactions), support for optional `peerDependencies`, improvements to Node.js compatibility, and more stability for `bun install`.

Fixes 41 bugs + a memory leak in `fetch()`, `KeyObject` support in `crypto` module, import package-lock.json, install peer dependencies, bun pm migrate subcommand, bun install bugfixes, and `toEqualIgnoringWhitespace` matcher in `bun:test`

Bun v1.0.4 fixes 62 bugs, adds `server.requestIP`, supports virtual modules in runtime plugins, fixes many bun install bugs, and reduces memory consumption in `Bun.serve()`