Homebrew 3 brings Apple Silicon support

Homebrew 3.0.0, the latest version of the package manager for MacOS and Linux, introduces official support for Apple Silicon hardware and a new bottle binary package format.

Apple Silicon is Apple’s own system-on-a-chip platform, which is replacing Intel processors in Apple’s Mac computers. Apple Silicon is supported on Homebrew installations in /opt/homebrew. But Homebrew does not yet provide all bottle packages on Apple Silicon that are available for Intel x86_64. The project is seeking help in doing so.

Homebrew 3.0.0 was unveiled February 5. Installation instructions can be found at brew.sh.

 Other changes in Homebrew 3.0.0 include:

• brew bottle and bottle do blocks use a new syntax format (one :celler per platform);  brew style --fix will autocorrect formulae to the new format. This move will allow more bottles to be relocatable.
• A new HOMEBREW_BOOTSNAP environment variable enables use of the Bootstrap gem to speed up repeated brew calls. This capability does not yet work on Apple Silicon or via Homebrew’s portable Ruby.
• A new command, brew completions, enables opt-ins to completions from third-party taps.
• brew casks is a new command implemented in Bash to output casks available to install.
• Some methods have been deprecated, disabled, and removed.
• brew update better handles upstream branch renames.
• Command usage text is generated automatically to keep it up-to-date.
• brew audit reads more formula data from taps.
• A bug that triggered brew update on every invocation of brew install has been fixed.

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