Impact Score: 5/10
Bun v0.6.3
Source available — automated, not human-reviewed
Component: bun · Channel: stable. Automated analysis, not a compatibility certification. How this works.
Analysis updated: 2026-11-01.
⚡ Executive Summary (TL;DR)
Bun bun-v0.6.3. Source highlight: **Read Bun v0.6.3's release notes on Bun's blog**
Who Does This Impact? (Role-Based Analysis)
💻 Software Engineers & Devs
Check the source notes against the package and APIs you use before upgrading.
📊 Product & Engineering Leads
Use the documented changes to assess relevance to your product; release frequency alone is not a quality measure.
⚙️ DevOps & Security
Verify the target version, runtime requirements and rollback procedure in the official documentation.
✨ New Features & Capabilities (2)
- Add tests for `--compile` tests
- add jsx key to arguments
🔧 Bug Fixes & Patches (6)
- Fixes #2928
- Fixes #2942
- Fixes #2946
- Fix a typo
- connect({ path }) - fix #2964
- fix(tls.connect) fix SNI on tls sockets and also servername (mongodb)
📄 View Raw Release Notes (Original Developer Log)
**[Read Bun v0.6.3's release notes on Bun's blog](https://bun.sh/blog/bun-v0.6.3)**
To install:
```bash
curl https://bun.sh/install | bash
# or you can use npm
# npm install -g bun
```
To upgrade:
```bash
bun upgrade
```
## What's Changed
* Fixes #2928 by @Jarred-Sumner in https://github.com/oven-sh/bun/pull/2939
* use raw template contents for tagged templates by @dylan-conway in https://github.com/oven-sh/bun/pull/2937
* Implement `expect.toBeCloseTo` by @blackmann in https://github.com/oven-sh/bun/pull/2870
* Fixes #2942 by @Jarred-Sumner in https://github.com/oven-sh/bun/pull/2947
* Fixes #2946 by @Jarred-Sumner in https://github.com/oven-sh/bun/pull/2949
* Implement `node:vm` by @silversquirl in https://github.com/oven-sh/bun/pull/2785
* set `node_allocator` for sourcemap joiner by @dylan-conway in https://github.com/oven-sh/bun/pull/2953
* Fix a typo by @naugtur in https://github.com/oven-sh/bun/pull/2959
* Make `node-fetch` polyfill better by @Jarred-Sumner in https://github.com/oven-sh/bun/pull/2962
* Add tests for `--compile` tests by @paperdave in https://github.com/oven-sh/bun/pull/2901
* update docs hot.md by @e3dio in https://github.com/oven-sh/bun/pull/2954
* resolve rope string for multipart template by @dylan-conway in https://github.com/oven-sh/bun/pull/2963
* add jsx key to arguments by @dylan-conway in https://github.com/oven-sh/bun/pull/2968
* console.log changes by @Jarred-Sumner in https://github.com/oven-sh/bun/pull/2966
* connect({ path }) - fix #2964 by @e3dio in https://github.com/oven-sh/bun/pull/2965
* Support test timeouts in `bun:test` by @Jarred-Sumner in https://github.com/oven-sh/bun/pull/2969
* Implement `test.todo` by @blackmann in https://github.com/oven-sh/bun/pull/2961
* Upgrade WebKit by @Jarred-Sumner in https://github.com/oven-sh/bun/pull/2980
* fix(tls.connect) fix SNI on tls sockets and also servername (mongodb) by @cirospaciari in https://github.com/oven-sh/bun/pull/2934
* WS send with callback by @cirospaciari in https://github.com/oven-sh/bun/pull/2986
* Fix memory leak in `fetch(url)` by @Jarred-Sumner in https://github.com/oven-sh/bun/pull/2989
* document the arch linux workaround by @paperdave in https://github.com/oven-sh/bun/pull/2997
## New Contributors
* @naugtur made their first contribution in https://github.com/oven-sh/bun/pull/2959
* @e3dio made their first contribution in https://github.com/oven-sh/bun/pull/2954
**Full Changelog**: https://github.com/oven-sh/bun/compare/bun-v0.6.2...bun-v0.6.3