Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
ElsewhereArea: what it touches
Internal ChangesKind: in v2.1.302,
Internal ChangesSection of the release
What
Claude Code can measure how much processor time commands run through its Bash tool use, using a Linux feature that groups processes so their resource use can be counted. The setup for this has been tightened:
A group path containing .. (a step up to a parent folder) is now rejected.
Paths that contain colons are now read correctly instead of being cut at the colon.
If setup fails, the log now says Bash-tool CPU will not be measured separately, and nothing else changes.
Why
This closes a path risk and fixes a parsing bug in usage measurement. If the measurement cannot be set up, your commands still run as normal.