Releasesby GlyphBun is joining Anthropic
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.
Also shipped Dec 2, 2025Bun in December 2025 →
Introducing Analytics Buckets
Analytics Buckets provide a storage layer for large datasets using Apache Iceberg and Parquet formats, optimized for analytical workloads.
Introducing Supabase Pipelines
Supabase Pipelines provides managed change-data-capture to replicate Postgres tables to analytical destinations like BigQuery in near real-time.
Introducing Components Authoring
The components authoring guide is now available, allowing developers to build and publish their own Convex components. Three new components were also released.
InventoryItem.variant field deprecated in favor of InventoryItem.variants connection
The InventoryItem.variant field has been deprecated and will be removed in a future API version. Use the new InventoryItem.variants connection instead. To learn more, see InventoryItem object or inventoryItem query in the GraphQL Admin API reference.
Release of Mistral Large 3 and Ministral 3
Mistral Large 3 (mistral-large-2512) and Ministral 3 (ministral-3b-2512, ministral-8b-2512, and ministral-14b-2512) have been released.
WAF Release - 2025-12-02 - Emergency
This week's emergency release introduces a new rule to block a critical RCE vulnerability in widely-used web frameworks through unsafe deserialization patterns. Key Findings New WAF rule deployed for RCE Generic Framework to block malicious POST requests containing unsafe deserialization patterns.
More from BunEvery Bun release →
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 loading changes, SQLite 3.51.1, and numerous bugfixes for bun:test, Node.js compatibility, Windows, Web APIs, bun install, and more
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 3.51.0, Upgraded to Zig 0.15.2, Bugfixes for bundler, bun install, Windows, Node.js compatibility, Web APIs, Bun.serve, networking, Bun.YAML...
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, environment variable expansion in .npmrc quoted values, and numerous bug fixes & node.js compatibility improvements
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 onTestFinished hook, ServerWebSocket subscriptions getter, Alpine 3.22 in Docker images, improved Git dependency resolution, bun list alias, and numerous bug...
Vercel now supports the Bun Runtime
Deploy and run your applications with Bun's fast JavaScript runtime on Vercel Functions, with full access to Bun APIs and improved performance
Bun v1.3.1
Fixes 103 issues (addressing 172 👍). 2× faster bun build on macOS for symlink-heavy projects, source maps preserve legal comments, and --format=cjs now inlines import.meta; bun test adds global vi, --pass-with-no-tests, and --only-failures; .npmrc :email auth support, faster installs when no peer deps, selective hoisting for isolated installs...
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 Bun.build for bundle analysis and virtual files, Response.json() 3.5x faster, 15% faster async/await, 30% faster Promise.race, 20x faster Bun.hash.crc32, faster...
Bun 1.3
Bun 1.3 introduces zero-config frontend development, unified SQL API, built-in Redis client, security enhancements, package catalogs, async stack traces, VS Code test integration, and Node.js compatibility improvements.