Today I’d like to announce Homebrew 1.3.0. The most significant change since 1.2.0 is that brew install python no longer installs a python binary without manual PATH additions and instead installs a python2 binary. This avoids overriding the system python binary by default when installing Python as a dependency. It also paves the way to eventually have python be Python 3.x.

Major changes and deprecations since 1.2.0:

• brew install (and upgrade/reinstall) use the macOS sandbox for all builds by default
• revision is deprecated in favour of rebuild in bottle do blocks
• fails_with :llvm is deprecated as it’s always a no-op
• versioned aliases’ opt links for taps are created based on their name and not in subdirectories
• brew link and brew unlink state is preserved after brew install and brew upgrade (including for keg-only formulae)
• brew test requires non-keg-only formulae to be linked
• events we didn’t use are no longer reported to analytics
• BuildErrors reported to analytics now include the requested formula installation options

While all the functionality for these deprecations will be supported for the foreseeable future in Homebrew/brew for 3rd-party usage, Homebrew/homebrew-core has removed the use of these APIs from formulae to improve the user experience.

Other changes since 1.2.0 I’d like to highlight are the following:

• default_formula are always used when pouring bottles again
• brew --prefix is faster
• with_env can be used to simplify temporarily setting environment variables
• homebrew npm-noob is a new tool to ease creating formulae from npm packages
• brew update arguments tell you more explicitly which brew upgrade command to run
• brew bump-formula-pr now works with a shallow Git clone of a tap
• versions are detected more reliably from URLs
• you can brew install formulae whose dependency trees require more than one version of the same :build-time dependency
• :build-time requirements are no longer fatal when installing from bottles
• brew edit will use atom if available
• Basic macOS 10.13 High Sierra support
• brew search includes Homebrew Cask results even when it is tapped
• brew style and brew audit run rubocop in parallel for performance
• brew info displays formula conflict reasons
• brew install --interactive can access $HOME to provide a better shell experience
• brew install can install bottles from a URL
• brew postinstall allows reinstalling etc and var
• Many brew audit checks have been ported to rubocop providing in-editor feedback on Homebrew style

Finally:

• Homebrew still accepts donations through Patreon. If you can afford it, please consider donating.

Thanks to all our hard-working maintainers, contributors, sponsors and supporters for getting us this far. Enjoy using Homebrew!