# Homebrew 6.0.21 - Product: Homebrew (https://whatsnew.fyi/product/homebrew) - Vendor: Homebrew - Date: 2026-09-01 - Version: 6.0.21 - Original notes: https://github.com/Homebrew/brew/releases/tag/6.0.21 - Permalink: https://whatsnew.fyi/product/homebrew/releases/6.0.21 - 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'. --- - **changed** — Harden build prefix relocation of poured bottles - **changed** — Use `-Wno-author` in `std_cmake_args` for formulas - **changed** — Support upcoming mas 8.0.0 in bundle/mac_app_store - **fixed** — Handle absent cask bundle version suffixes - **changed** — Relativise absolute symlinks into the prefix when bottling - **changed** — Add padded bottle build prefixes - **changed** — Enable shorter-prefix bottle relocation - **added** — Add `--fix` command for cask audit - **fixed** — Never install downloads with checksum mismatches - **changed** — Harden unsigned API, trust, installer and output boundaries - **changed** — Verify cached downloads at every consumption boundary - **changed** — Restore brew analytics to the manpage and completions - **changed** — Normalise Codeberg remote forms in tap - **changed** — Group upgrade dependencies and dependents - **changed** — Stream parallel cleanup output ##### What's Changed * Harden build prefix relocation of poured bottles by @MikeMcQuaid in https://github.com/Homebrew/brew/pull/23667 * Harden build prefix relocation of poured bottles by @MikeMcQuaid in https://github.com/Homebrew/brew/pull/23670 * Drop macOS Intel CI in Homebrew/core by @p-linnane in https://github.com/Homebrew/brew/pull/23677 * formula: use `-Wno-author` in `std_cmake_args` by @p-linnane in https://github.com/Homebrew/brew/pull/23676 * docs: update `brew tap`'s description by @AlternateRT in https://github.com/Homebrew/brew/pull/23687 * bundle/mac_app_store: Support upcoming mas 8.0.0 by @rgoldberg in https://github.com/Homebrew/brew/pull/23690 * Handle absent cask bundle version suffixes by @MikeMcQuaid in https://github.com/Homebrew/brew/pull/23688 * Speed up and expand integration coverage by @MikeMcQuaid in https://github.com/Homebrew/brew/pull/23684 * Split slow test jobs by @MikeMcQuaid in https://github.com/Homebrew/brew/pull/23675 * rubocops: add `CMakeArgs` cop by @p-linnane in https://github.com/Homebrew/brew/pull/23680 * Group upgrade dependencies and dependents by @MikeMcQuaid in https://github.com/Homebrew/brew/pull/23691 * Relativise absolute symlinks into the prefix when bottling by @MikeMcQuaid in https://github.com/Homebrew/brew/pull/23682 * Defer the relocated pour validation sweep by @MikeMcQuaid in https://github.com/Homebrew/brew/pull/23681 * Stream parallel cleanup output by @MikeMcQuaid in https://github.com/Homebrew/brew/pull/23692 * github_runner_matrix: use macos-15-intel for Portable Ruby x86_64 by @p-linnane in https://github.com/Homebrew/brew/pull/23694 * advisory-match: sync alias families and reopen reviewed ranges by @p-linnane in https://github.com/Homebrew/brew/pull/23696 * tap: normalise Codeberg remote forms by @AlternateRT in https://github.com/Homebrew/brew/pull/23697 * Break out GitHub Packages downloads per tag by @MikeMcQuaid in https://github.com/Homebrew/brew/pull/23698 * Add padded bottle build prefixes by @MikeMcQuaid in https://github.com/Homebrew/brew/pull/23693 * test/spec_helper: skip missing test tools under brew test-bot by @p-linnane in https://github.com/Homebrew/brew/pull/23700 * extend/pathname: one lstat per entry in compute_disk_usage by @krehel in https://github.com/Homebrew/brew/pull/23701 * rubocops/cask: flag redundant nested on_* blocks by @p-linnane in https://github.com/Homebrew/brew/pull/23705 * audit: add `--fix` command for casks by @bevanjkay in https://github.com/Homebrew/brew/pull/23618 * Enable shorter-prefix bottle relocation by @MikeMcQuaid in https://github.com/Homebrew/brew/pull/23699 * utils/tty: memoise a failed stty size by @krehel in https://github.com/Homebrew/brew/pull/23706 * formula_auditor: reject Linux libomp dependency in core formula by @cho-m in https://github.com/Homebrew/brew/pull/23708 * rubocops/lines: add cop for jpeg dependency by @cho-m in https://github.com/Homebrew/brew/pull/23709 * rubocops/lines: remove dead syntax by @cho-m in https://github.com/Homebrew/brew/pull/23710 * bundle: require cask/cask_loader before use by @p-linnane in https://github.com/Homebrew/brew/pull/23716 * Never install downloads with checksum mismatches by @MikeMcQuaid in https://github.com/Homebrew/brew/pull/23717 * Reduce Intel macOS to Tier 3 by @p-linnane in https://github.com/Homebrew/brew/pull/23679 * Harden unsigned API, trust, installer and output boundaries by @p-linnane in https://github.com/Homebrew/brew/pull/23720 * Restore brew analytics to the manpage and completions by @dylanpulver in https://github.com/Homebrew/brew/pull/23721 * Verify cached downloads at every consumption boundary by @p-linnane in https://github.com/Homebrew/brew/pull/23719 * release: skip doctor on Tier 3 Intel macOS by @MikeMcQuaid in https://github.com/Homebrew/brew/pull/23725 * Speed up test-bot smoke jobs by @MikeMcQuaid in htt _[Truncated at 4000 characters — full notes: https://github.com/Homebrew/brew/releases/tag/6.0.21]_