Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
TelemetryArea: what it touches
Internal ChangesKind: in v2.1.299,
Internal ChangesSection of the release
What
When Claude runs a shell command with the Bash tool, Claude Code sends usage data about whether it ran or failed. That data now includes which model was in use and whether a note about the zsh shell was in the prompt, plus some extra details taken from the command and its output. It no longer reports a zsh no-match error field.
Why
This changes only the usage data sent in the background. Nothing changes in how commands run or what you see.
