What's wrong with this entry?
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What
The system prompt instruction about using $TMPDIR for temporary files now correctly states that TMPDIR is set to the sandbox-writable directory specifically in sandbox mode (the old wording implied it was set in both sandboxed and unsandboxed contexts).
Evidence
Updated instruction text (search for "TMPDIR is automatically set to the correct sandbox-writable directory in sandbox mode")
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
Related
Other releases about the same thing. Found by shared names or similar wording; neither means one caused the other.