What
Claude Code keeps a small record of each git config file so it can tell when the file changes. When a config path turns out to be the null device, it now records only the file's identity instead of its full file details. The null device is a special empty file that discards whatever is written to it. The record for a path that cannot be read now ends with the correct marker.
Why
These are fixes to how git config files are tracked for changes.
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Anthropic's release notes agree
Improved screen-reader output in /mcp: a disabled server is read as "off" instead of "pending"