Copilot Chat v0.43: Session & Repository Fixes

TL;DR

• Repository path handling improvements for folder sessions
• Session management refinements and discard changes action fixes
• CLI session handling and performance logging enhancements

New

• Init repository action — Sessions now support initializing repositories directly
• Copilot CLI Controller API — New API for improved CLI session control
• OTel telemetry tracking — Added OpenTelemetry feature adoption tracking
• Workspace metadata in events — Git branch, commit, remote, and file path now included in telemetry

Fixed

• Repository path persistence — Folder sessions now maintain repository path information correctly
• Discard changes visibility — Action only shows when a git repository is present
• Nested sub-agent calls — Fixed issue with Copilot CLI nested sub-agent invocations
• Tool token over-counting — Resolved over-counting when Anthropic Tool Search is enabled
• Whitespace artifacts — Fixed whitespace-only text blocks from orphaned CacheBreakpoint
• Skill directory access — Corrected skill directory access issues
• Conversation store cleanup — Chat session disposal now properly cleans up conversation store entries
• WebSocket management — Now uses one WebSocket per conversation for better resource handling

Changed

• Session logging — Filter names now included in logs for better debugging
• Cursor placement — Tweaked cursor placement for xtab calls after cursor prediction
• Base branch preference — Sessions now prefer upstream for base branch when present
• Folder session staging — Changes no longer staged for folder sessions
• Claude co-attribution — Disabled Claude co-attribution in commits and PRs

Update via: npm install @github/copilot-chat@0.43.2026033104 or check the full release notes.

Source: Copilot Chat