Show HN: Homebrew 6.0.0
Homebrew 6.0.0, announced on June 11, 2026, brings several major changes. The new tap trust security mechanism requires third-party taps (and tap-qualified formulae and casks) to be explicitly trusted before their code is evaluated or run, reducing risk from malicious or compromised taps while leaving official Homebrew taps trusted by default. The internal JSON API, previously opt-in via HOMEBREW_USE_INTERNAL_API since 5.0.0, is now the default, combining all metadata into a single download for faster updates and less network traffic. Linux sandboxing using Bubblewrap is now on by default for developers, aligning Linux with macOS where build, test, and postinstall phases already run sandboxed. Following a user survey, ask mode is now the default for developers, so brew install and brew upgrade show a dependency summary and confirmation prompt before making changes. Other improvements include many brew bundle enhancements, better defaults, improved performance, and initial support for macOS 27 (Golden Gate).
Tap trust reduces risk from malicious third-party taps by requiring explicit trust before code execution.