Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
SessionsArea: what it touches
Internal ChangesKind: in v2.1.310,
Internal ChangesSection of the release
What
When Claude Code fails to save data for a session (a session is one conversation with Claude), it now records that a write failed. Nothing in this release is known to act on that record yet, so you should not see any difference.
Why
The record could later be used to warn you about lost data or to try the save again. For now it has no visible effect.