[Release] anthropics/claude-code v2.1.202: v2.1.202

Claude Code v2.1.202 introduces dynamic workflow size configuration, enhanced OpenTelemetry telemetry attributes for workflow tracing, and fixes 17+ critical bugs spanning interactive sessions, Remote Control integration, voice dictation, and workflow parsing. Key improvements include better sign-in URL handling over SSH, improved workflow agent list UI, and enhanced MCP error messaging. The release also optimizes session resumption performance in repositories with many git worktrees.

Key Points

• •Added 'Dynamic workflow size' setting in /config to control Claude's workflow agent count (small/medium/large) as an advisory guideline
• •Enhanced OpenTelemetry telemetry with workflow.run_id and workflow.name attributes for reconstructing workflow run activity from OTel data
• •Fixed critical crash in Ctrl+R history search when accepting/cancelling during file scanning
• •Resolved /rename command reversion on background sessions when jobs restart, enabling proper session addressing by new name
• •Fixed transient mTLS handshake failures during in-place client certificate rotation
• •Corrected Remote Control (mobile/web) command failures in interactive sessions and fixed silent dropping of images/files without captions
• •Fixed sign-in URLs from 'claude auth login' and 'claude mcp login --no-browser' to emit as single clickable hyperlinks over SSH
• •Resolved unbounded voice dictation retry loop by pausing voice input on repeated microphone/audio recorder failures
• •Fixed workflow script unicode quote escape corruption and improved parse error reporting to show offending lines
• •Optimized session resumption performance in repositories with many git worktrees, reducing memory usage and latency

Workflow Diagram

Concepts