# Homebrew 6.0.9

- Product: Homebrew (https://whatsnew.fyi/product/homebrew)
- Vendor: Homebrew
- Date: 2026-07-08
- Version: 6.0.9
- Original notes: https://github.com/Homebrew/brew/releases/tag/6.0.9
- Permalink: https://whatsnew.fyi/product/homebrew/releases/6.0.9
- Labels: Platforms: macOS, Linux

What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog.

Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'.

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- **fixed** — Handle EUID/UID in install_steps like postinstall does
- **fixed** — Don't lose the original exception when cask upgrade rollback itself fails
- **changed** — Defer reinstall keg backup and silence analytics curl output
- **fixed** — Don't crash cask upgrade when staged version directory is missing
- **changed** — Gather system configuration concurrently for approximately 31% faster performance
- **fixed** — Avoid filesystem checks from Pathname presence tests
- **added** — Warn when all bottles are lost
- **fixed** — Make the post-install quarantine release actually run during cask upgrade
- **added** — Write cask receipts on upgrade
- **changed** — Use sudo user's tap trust
- **added** — Add GCC 14 for compiler selection in Dockerfile
- **changed** — Avoid attempting same resource update in dev-cmd/bump-formula-pr

<!-- Release notes generated using configuration in .github/release.yml at main -->

##### What's Changed
* install_steps: handle EUID/UID like postinstall does by @Bo98 in https://github.com/Homebrew/brew/pull/22985
* cask/upgrade: don't lose the original exception when rollback itself fails by @aholland in https://github.com/Homebrew/brew/pull/22997
* Defer reinstall keg backup and silence analytics curl output by @p-linnane in https://github.com/Homebrew/brew/pull/22994
* cask: don't crash upgrade when staged version directory is missing by @gecube in https://github.com/Homebrew/brew/pull/22999
* perf/config: gather system configuration concurrently (~31% faster) by @dduugg in https://github.com/Homebrew/brew/pull/22989
* github_runner_matrix: unique runner for each shard by @cho-m in https://github.com/Homebrew/brew/pull/22991
* Avoid filesystem checks from Pathname presence tests by @dduugg in https://github.com/Homebrew/brew/pull/22988
* Warn when all bottles are lost by @MikeMcQuaid in https://github.com/Homebrew/brew/pull/22971
* cask/upgrade: make the post-install quarantine release actually run by @aholland in https://github.com/Homebrew/brew/pull/23002
* Write cask receipts on upgrade by @MikeMcQuaid in https://github.com/Homebrew/brew/pull/23001
* Use sudo user's tap trust by @MikeMcQuaid in https://github.com/Homebrew/brew/pull/23000
* Dockerfile: add GCC 14 for compiler selection to use by @cho-m in https://github.com/Homebrew/brew/pull/23003
* Use new Linux self-hosted setup by @Bo98 in https://github.com/Homebrew/brew/pull/22995
* dev-cmd/bump-formula-pr: avoid attempting same resource update by @cho-m in https://github.com/Homebrew/brew/pull/23004

##### New Contributors
* @gecube made their first contribution in https://github.com/Homebrew/brew/pull/22999

**Full Changelog**: https://github.com/Homebrew/brew/compare/6.0.8...6.0.9