You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
DiagnosticsArea: what it touches
ImprovementsKind: in v2.1.304,
ImprovementsSection of the release
Unclear It is not clear where the low-disk and low-memory thresholds come from, so which sessions now run the watchdog is unknown.
What
Claude Code has a watchdog, a background timer that checks whether disk space or memory is running low. It used to start only when CLAUDE_CODE_DIAGNOSTICS_FILE was set and CLAUDECODE was not set.
Those two checks are gone. The watchdog now starts when either of these holds:
a low-disk or low-memory threshold is set to something other than zero
a separate check passes
Why
The watchdog is no longer tied to the diagnostics file, so it can run in more sessions than before.
