Copilot Chat v0.42: CLI Cache & Windows Symlink Fixes

TL;DR

• Copilot CLI now invalidates repository state cache on file changes
• Windows symlink handling fixed to prevent creation errors
• Session command descriptions clarified for better UX

New

• Minimaxfamily model support — added to modelSupportsMultiReplaceString for broader model compatibility
• Medium reasoning effort default — reasoning tasks now default to medium effort level
• Session references in troubleshoot skill — improved debugging with session context in troubleshooting

Fixed

• Copilot CLI repository cache — invalid cache no longer persists when files in the repo change
• Windows symlink creation — symlinks are no longer created on Windows, preventing platform-specific errors
• OTel null sink — now uses os.devNull for proper telemetry handling
• Session command descriptions — updated for clarity and better discoverability

Removed

• Debug logger from CopilotCLISession
• Cloud fake progress indicator
• Explicit JS/TS formatter setting
• Workspace metaprompt

Update via: code --install-extension GitHub.Copilot-Chat or check for updates in VS Code Extensions.

Source: Copilot Chat