Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
Remote ControlArea: what it touches
Internal ChangesKind: in v2.1.309,
Internal ChangesSection of the release
What
Claude Code has a bridge: a connection that passes messages between your interactive session and another program. When that program sends a control request (an instruction to the session, rather than a chat message), Claude Code sends back a reply. For some requests, that reply now carries an extra marker. Other replies are sent unchanged, as before. This happens in two places where replies are sent.
Why
This changes what the bridge sends back for certain requests. It matters mainly to programs that talk to Claude Code over the bridge and read its replies.
