Bun v1.3.3
Fixes 95 issues (addressing 348 π). 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...
Also shipped Nov 21, 2025Bun in November 2025 β
Dataflow now supports speculative execution for batch pipelines
Dataflow now supports speculative execution for batch pipelines. This feature mitigates the impact of slow-running tasks ( stragglers ) by launching a redundant execution of these tasks. The first task to finish is used, and the other is canceled, which can improve the overall completion time of your pipeline. This feature is generally available.
What's new in Sigma
Admin Add a key file for Snowflake key pair connections When configuring a Snowflake connection, you can add a PKCS#8-formatted key file ( .p8 ) instead of pasting your private key when setting up key pair authentication for the connection or an OAuth service account. For more details, see Connect to Snowflake .
Containers - New CPU Pricing for Containers and Sandboxes
Containers and Sandboxes pricing for CPU time is now based on active usage only, instead of provisioned resources. This means that you now pay less for Containers and Sandboxes. An Example Before and After Imagine running the standard-2 instance type for one hour, which can use up to 1 vCPU, but on average you use only 20% of your CPU capacity.
Notifications, Conductor Queue
This week is all about staying ahead of issues: Notifications graduate from Priority Boarding to General Availability, giving everyone a real-time view of whatβs happening across projects and environments. Thereβs also a new way for our community Conductors to triage questions faster.
Projects deployed using a zip file via API now support branch deploys
When you deploy a project using a ZIP file and the Netlify API, you can now also create branch deploys using the new branch parameter. While it was always possible to pass a branch parameter to the https://api.netlify.com/api/v1/sites/{site_id}/builds endpoint, it previously had no effect for deploys made programmatically using the API.
Faro Web SDK v2.0 is now GA
This major release brings new updates to User Actions for GA, introduces improvements to Web Vitals, simplifies configuration, cleans up deprecated internals, and adds experimental navigation instrumentation for soft navigations. Highlights: User Actions are now GA Additional configuration to manage action state Added an importance attribute (e.g.
More from BunEvery Bun release β
Bun 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.
Bun v1.3.2
Fixes 287 issues (addressing 324 π). 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...
Bun v1.3.4
Fixes 194 issues (addressing 412 π). 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
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 v1.3.5
Fixes 32 issues (addressing 25 π). 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 v1.3.1
Fixes 103 issues (addressing 172 π). 2Γ 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 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.
Bun v1.3.6
Fixes 45 issues (addressing 125 π). 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...