Claude Code version 2.1.229 introduces support for resuming recent Remote Control sessions via the `claude remote-control --continue` command and adds server-supplied hook support for self-hosted runners. This update also implements SSE keepalive pings to prevent idle-timeout disconnects on Vertex and Bedrock upstreams during long thinking pauses.
- Documented `claude remote-control --continue` for resuming the most recent Remote Control session.
- Added server-supplied Claude Code hook support for self-hosted runner sessions.
- Added SSE keepalive pings to gateway streaming responses to prevent disconnects.
- Fixed crashes caused by non-string tool call values, narrow terminal windows, and extended-length paths on Windows.
- Fixed auto mode failures when the attribution header is disabled via `CLAUDE_CODE_ATTRIBUTION_HEADER`.
- Improved workflow fan-outs to stagger sibling agents and reduce redundant prompt prefix costs.
These changes enhance stability for remote and self-hosted environments while resolving several critical crash scenarios and improving session management.