You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
Bash ToolArea: what it touches
ImprovementsKind: in v2.1.318,
ImprovementsSection of the release
What
The instructions for Claude's shell tool gain a note for macOS. It says the tool runs macOS's /bin/bash version 3.2, where a heredoc (a way of writing several lines of text straight into a command) does not work reliably inside $(...). Claude is told to pass multi-line text on standard input instead.
Why
Commands that build multi-line text this way, such as git commit messages, could come out broken on a Mac. Claude should now write them in a way that works there.