Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
SDKArea: what it touches
Internal ChangesKind: in v2.1.281,
Internal ChangesSection of the release
What
The SDK is the toolkit programs use to run Claude Code. Its client now records when its first set-up message has been sent. When the client shuts down, it records why and stops capturing its list of MCP servers (outside tools Claude can connect to).
Why
This is internal housekeeping with no visible effect.
