Claude Code v2.1.191: /rewind Command, 37% CPU Reduction, MCP Retry Logic
Anthropic
Claude Code v2.1.191 (June 24) adds /rewind to resume conversations from before a /clear was run, cuts CPU usage during streaming by ~37% through text-update coalescing, adds MCP server retry logic for transient network errors, and reduces memory growth in long sessions. The prior v2.1.187 (June 23) had added sandbox.credentials to block sandboxed commands from reading secret files and org-configured model restrictions in the model picker.
Why it matters
Two rapid releases in 36 hours show active shipping cadence. The /rewind feature addresses a common pain point with conversation state loss; the CPU and memory improvements matter for long agentic sessions; MCP reliability improvements are relevant to production tool-use pipelines.
Importance: 2/5
Rapid patch cadence with /rewind and CPU improvements; notable but incremental