Copilot CLI v1.0.5-0: Dynamic Retrieval & Syntax Highlighting

TL;DR

• Experimental embedding-based dynamic retrieval for MCP and skill instructions per turn
• Syntax highlighting in /diff now supports 17 programming languages
• New /version command to check CLI version and updates in-session
• Multiple bug fixes for Windows/PowerShell, large files, and authentication

New

• /version command — Display CLI version and check for updates without leaving your session
• Embedding-based dynamic retrieval — Experimental feature that retrieves MCP and skill instructions per turn based on context, improving relevance
• Syntax highlighting in /diff — 17 programming languages now highlighted for better readability when reviewing changes
• preCompact hook — Run commands before context compaction starts, giving you control over cleanup operations

Improved

• /changelog command — Now supports last <N>, since <version>, and summarize flags to browse and summarize multiple release notes at once
• Hooks config validation — Config files that omit the version field are now accepted, reducing friction in setup

Fixed

• Request ID from API now appears in timeline when errors occur after retries are exhausted — easier debugging
• PR descriptions with backtick-formatted code now render correctly on Windows/PowerShell
• Helpful error message shown when a file path is passed as a CLI command instead of silent failure
• Session reports authentication error instead of hanging when token is invalid or expired
• View tool now shows partial content for large single-line files (minified JS, large JSON) instead of empty output

Update with: npm install -g @github/copilot-cli@latest

Source: Copilot CLI