audits: quote and reword problem description text by @EricFromCanada in https://github.com/Homebrew/brew/pull/20030
brew.sh: move sudo reset timestamp. by @MikeMcQuaid in https://github.com/Homebrew/brew/pull/20037
Shard JSON API by OS/Arch combination by @Rylan12 in https://github.com/Homebrew/brew/pull/20038
test/cmd: add more shell tests. by @MikeMcQuaid in https://github.com/Homebrew/brew/pull/20040
Refactor OnSystem and SimulateSystem bottle tag handling by @Rylan12 in https://github.com/Homebrew/brew/pull/20042
parser: show related environment variable in switch description by @EricFromCanada in https://github.com/Homebrew/brew/pull/20044
Add brew mcp-server: a MCP server for Homebrew. by @MikeMcQuaid in https://github.com/Homebrew/brew/pull/20041
Fix sharded API structure to match existing API by @Rylan12 in https://github.com/Homebrew/brew/pull/20045
os/mac/pkgconfig/15: update expat version to 2.7.1 by @Rylan12 in https://github.com/Homebrew/brew/pull/20048
Add undocumented HOMEBREW_USE_INTERNAL_API switch by @Rylan12 in https://github.com/Homebrew/brew/pull/20046
bin/brew: don't copy across zeroed env values. by @MikeMcQuaid in https://github.com/Homebrew/brew/pull/20053
brew (bundle|) sh: use user's configuration but override prompts. by @MikeMcQuaid in https://github.com/Homebrew/brew/pull/20047
rubocops/cask/url: put keyword parameters on a new line by @EricFromCanada in https://github.com/Homebrew/brew/pull/20055
cask_loader: improve error handling. by @MikeMcQuaid in https://github.com/Homebrew/brew/pull/20057
Reduce the internal formula API to contain the bare minimum data by @Rylan12 in https://github.com/Homebrew/brew/pull/20051
Improve completions (and elisp) output in caveats by @MikeMcQuaid in https://github.com/Homebrew/brew/pull/20059

Full Changelog: https://github.com/Homebrew/brew/compare/4.5.4...4.5.5