Blog

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 6 bugs (addressing 317 👍 reactions). 'http2' module & gRPC.js work now. Vite 5 & Rollup 4 work. Implements process.report.getReport(), improves support for ES5 'with' statements, fixes a regression in bun install, fixes a crash when printing exceptions, fixes a Bun.spawn bug, and fixes a peer dependencies bug

Fixes 24 bugs, makes bun's CLI help menus easier to read, adds support for bun -e, bun --env-file, server.url, import.meta.env, expect.unreachable(), improves support for module mocks, allows importing builtin modules at bundle-time, and improves Node.js compatibility

Fixes 5 bugs, adds Bun.semver, fixes a bug in bun install and fixes bugs impacting astro and @google-cloud/storage

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 a glibc symbol version error, illegal instruction error, a Bun.spawn bug, an edgecase with peer dependency installs, and a JSX transpiler bugfix

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 3 bugs (addressing 85 👍 reactions), implements support for the 'overrides' & 'resolutions' fields in package.json and a regression impacting Docker usage with Bun

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()

emitDecoratorMetadata, Nest.js support, better private registry support, bunx bugfix, console.log() depth 8 -> 2, silence .env loaded message, and many bugfixes

Faster watch mode, bunx @latest bugfix, Bun uses V8's date parser, bugfixes to node:readline, node:dns, bun run, http streaming, transpiler, node:tty and more

Named imports for .json & .toml files, bugfixes to bun install, node:path, Buffer. Support for NODE_TLS_REJECT_UNAUTHORIZED=0

Bun is stable and ready for production.

Bun.serve() gets unix domain socket support, a performance regression has been fixed, and bugs in bun install, node:http and napi have been fixed

Bun gets debugger support, fetch streaming, and bun update. ReadStream and WriteStream from node:tty are implemented, including raw mode on process.stdin. SvelteKit now works in Bun. Plus bug fixes and stability improvements.

bun test gets code coverage reporting. bun test -t pattern lets you filter tests to run by regex pattern. Fixes a crash in bun:sqlite, node.js compatiblity improvements, and more.

worker_threads, BroadcastChannel, diagnostics_channel, Node.js compatibility improvements, bun ., bugfixes and 2 memory leaks fixed

Node.js compatibility improvements for Vite & frameworks. Better workspace support in bun installl & a bugfix for private registries. ES Modules load 30% faster. vite dev starts 90% faster on Linux. Transpiler bugfixes. fetch() file urls. MessagePort & MessageChannel.

vite dev support, Workers, bun --smol, WebSocket.ping(), structuredClone(), serialize() and better Node.js compatibility

Better support for Node.js process and lots of fixed bugs.

Mock Date, 10x faster base64 encoding, WebSocket client reliability improvements, support for postgres tls and nodemailer, and various bug fixes.

CommonJS is here to stay, and that's okay. Better tooling will solve today's developer experience issues.

Sourcemapped stack traces at runtime, Node.js compatibility improvements, Bun.file(path).exists, minifier and bundler bugfixes

Reduced memory usage, fs.watch(), better CommonJS support, improvements to bun test, bun install, and many bugfixes.

Memory usage reductions in Bun.serve(), bun install, module imports, and crypto hashing. Crash in CommonJS modules fixed, plus additional bugfixes.

Password hashing, function mocking, debugging, and bug squashing

Discord.js, Prisma, and Puppeteer support, faster node:crypto hashing, and lots of bug fixes

Lots of improvements to bun test, including Github Actions support, bun test --only, test.if(), describe.skip(), and more matchers

Call JavaScript functions at bundle-time and inline results into the AST

Native CommonJS support, $npm_lifecycle_event, bugfix for Bun.serve() with streaming files, bugfix for Node.js createConnection and a bundler bugfix

Up to 80% faster bun test, test timeouts, timezone support, bundler bugfixes, console.log() improvements, node:http bugfixes, and more

Introducing node:vm support, support for socket.io and mongodb, test.todo(), and many bug fixes for the bundler.

Up to 20% faster JSON.parse, 15% faster JSON.stringify, and Proxy gets faster. A couple bugfixes to the minifier and bundler

The Bun toolkit gets a new addition. Bun's fast native bundler is now in beta.

A new JavaScript bundler, standalone executables, and lots of new features and improvements

Introducing watch mode using bun --watch, tarball dependencies in bun install, and lots of bug fixes and compatibility improvements.

Introducing expect() snapshots in bun test, preloading modules using bun --preload, basic glob star support in bun install, improvements to Web & Node.js compatibility, lots of bug fixes, and a teaser of what's next.

Bun has docs now? Bun has docs now.

Support for FormData and git dependencies, better setTimeout() compatibility, bun wiptest is now bun test, and better support on AWS Lambda and GitHub Actions.

Support for Bun.sleep, improved Docker support, and improvements to Node.js and npm compatibility

Improved compatibility for node:http, support for http.request() and stripe-node, and fixed various bugs.

MongoDB support, github: dependencies in bun install, faster Buffer, bun run for WebAssembly, express' body-parser package, and many bug fixes.

Support for aliasing package.json dependencies, a better error message when a workspace is not found, and a few important bug fixes.

Support for npm workspaces, DNS lookups, database drivers, and lots of improvements to bun install.

Introducing bunx. Install and run an executable from npm, 100x faster than npx.

Massive reduction in memory usage, faster text encoding, improved Jest compatibility, file-system routing, automatic package installs, and a lot more

Release notes for Bun v0.2.2

Release notes for Bun v0.2.1

Release notes for Bun v0.2.0

Release notes for Bun v0.1.12

Release notes for Bun v0.1.11

Release notes for Bun v0.1.10

Release notes for Bun v0.1.9

Release notes for Bun v0.1.8

Release notes for Bun v0.1.7

Release notes for Bun v0.1.6

Release notes for Bun v0.1.5

Release notes for Bun v0.1.4

Release notes for Bun v0.1.3

Release notes for Bun v0.1.2

Release notes for Bun v0.1.1