Claude Code version 2.1.293 introduces Claude Haiku 5.5 as the default Haiku model on the Anthropic API, featuring a 1M context window and new pricing tiers. This release also adds `agentType` to the `subagentStatusLine` payload and `isDeferred` to `$.tool.register` for mods, enabling scripts to distinguish custom subagent types and control tool schema visibility.
- Added Claude Haiku 5.5 (`claude-haiku-5-5`) with 1M context and $0.10/$0.50 per Mtok pricing.
- Fixed issues where Claude treated its own last actions before context compaction as done after, or retracted finished work.
- Resolved a memory leak in HTTP MCP connections that kept every sent request until closure.
- Corrected behavior for messages lost when moving sessions to the background and fixed `/model` effort wrapping past limits.
- Addressed subagent tool list confusion where built-in tools were incorrectly reported as disabled for the whole session.
- Improved startup for Team and Enterprise organizations by fetching policy and managed settings earlier with retry logic.
The update ensures more reliable session management, accurate tool reporting for custom agents, and faster initialization for enterprise deployments.