Claude Code v2.1.212: /fork now spawns a background session

The latest Claude Code patch changes what /fork does. It now copies the conversation into a new background session with its own entry in the agent list, while the old internal subagent moves to /subtask.
• MCP calls that run longer than 2 minutes automatically move to the background so the session stays usable. The threshold is configurable via CLAUDE_CODE_MCP_AUTO_BACKGROUND_MS. • WebSearch now has a per-session cap, defaulting to 200, set through CLAUDE_CODE_MAX_WEB_SEARCHES_PER_SESSION • Subagent launches are capped too, defaulting to 200 and reset with /clear • Running /resume as an agent opens a list of past sessions, including ones removed from the main list • Fixed a bug where plan mode ran file-modifying Bash commands without asking for permission
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