Bun v1.4.2 发布：修复 Elysia 构建失败与内存泄漏
Bun v1.4.2 发布，修复了多个回归问题和崩溃。主要修复包括：bun build 变量名冲突导致 Elysia 项目构建失败、AsyncLocalStorage 内存泄漏、worker_threads 事件顺序问题。 JavaScriptCore 升级了约 350 个上游 WebKit 提交，修复了 TypedArray、Proxy 崩溃等问题。 
Bun
打包、安装和运行 JavaScript 和 TypeScript——全在 Bun 中。Bun 是一个新的 JavaScript 运行时，内置原生打包器、转译器、任务运行器和 npm 客户端。
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收藏Bun v1.4.1 发布：内存占用大幅降低，打包体积优化显著
Bun v1.4.1 发布，修复 202 个问题。空闲内存使用降低最多 89%，Next.js SSR 从 1303MB 降至 142MB。新增 HTTP/2 支持、WebSocket pause/resume、argon2 加密。 bun build 对 zod 等库的打包体积减少 79%。 
Bun 初始化命令默认生成 AI Agent 规则文件
Bun 的 bun init 命令检测到 Claude CLI 环境时会自动生成 文件，同时创建 package.json、tsconfig/jsconfig.json、入口文件和。 该行为可通过环境变量 $BUN_AGENT_RULE_DISABLED=1 或 CLAUDE_CODE_AGENT_RULE_DISABLED 关闭。 
Bun 官方宣布使用 Rust 重写核心组件
<p>为什么以及我们如何将Zig的Bun重写为Rust</p>
Bun v1.3.14
Fixes 92 issues (addressing 380 👍). Bun.Image — a built-in image processing API, 7x faster warm installs with the isolated linker's global store, experimental HTTP/2 and HTTP/3 clients for fetch, HTT...
Bun v1.3.13
Fixes 82 issues (addressing 381 👍). bun test --parallel, --isolate, --shard, and --changed, bun install streams tarballs to disk using 17x less memory, source maps use 8x less memory, 5.5x faster gzi...
Bun v1.3.12
Fixes 120 issues (addressing 219 👍). Render Markdown in the terminal with bun./file.md, Bun.WebView headless browser automation, in-process Bun.cron scheduler, async stack traces for native errors, 2...
Bun v1.3.11
Fixes 105 issues (addressing 307 👍). 4 MB smaller on Linux. x64 Bun.cron for OS-level cron jobs and expression parsing, Bun.sliceAnsi for ANSI/grapheme-aware string slicing, richer Bun.markdown list ...
Bun v1.3.10
Fixes 155 issues (addressing 642 👍). New native REPL, --compile --target=browser for self-contained HTML, TC39 standard ES decorators, Windows ARM64 support, barrel import optimization, and a faster ...
Bun v1.3.9
Fixes 23 issues (addressing 13 👍). Run multiple scripts in --parallel or --sequential. bun:test mock & spyOn get Symbol.dispose support. ESM bytecode compilation. Faster Bun.markdown. Faster RegExp, ...
Bun v1.3.8
Fixes 8 issues (addressing 6 👍). Bun.markdown is a builtin CommonMark-compliant Markdown parser written in Zig. Bun's bundler gets bun build --metafile-md to write LLM-friendly module graph metadata....
Bun v1.3.7
Fixes 91 issues (addressing 243 👍). 50% faster Buffer.from(array), 35% faster async/await, 3x faster array.flat, 90% faster padStart/padEnd via JSC upgrade. New: Bun.JSON5, Bun.JSONL, Bun.wrapAnsi (3...
Bun v1.3.6
Fixes 45 issues (addressing 125 👍). Bun.Archive API for creating & extracting tarballs with gzip compression, Bun.JSONC for parsing JSON with comments, metafile & files options in for bundle analysis...
Bun v1.3.5
Fixes 32 issues (addressing 25 👍). Bun.Terminal API, compile-time feature flags, improved Bun.stringWidth accuracy, V8 C++ value type checking APIs, Content-Disposition support for S3 uploads, enviro...
Bun v1.3.4
Fixes 194 issues (addressing 412 👍). URLPattern API, Fake Timers for bun:test, Custom Proxy Headers in fetch,console.log %j format, http.Agent connection pooling fix, Standalone executable config loa...
Anthropic acquires Bun
Bun has been acquired by Anthropic. Anthropic is betting on Bun as the infrastructure powering Claude Code, Claude Agent SDK, and future AI coding products & tools.
Bun v1.3.3
Fixes 95 issues (addressing 348 👍). CompressionStream and DecompressionStream, Control.env and bunfig.toml loading in standalone executables, retry and repeats in bun:test, --no-env-file, SQLite 3.51...
Bun v1.3.2
Fixes 287 issues (addressing 324 👍). Hoisted installs restored as default for backward compatibility. CPU profiling with --cpu-prof, faster installs for packages with post-install scripts, bun:test o...