Copilot Chat v0.43: CLI Hooks & Prompt Caching

Copilot Chat v0.43 improves CLI extensibility, optimizes prompt caching for inline summarization, and enhances session merging with richer context.

Copilot Chat v0.43: CLI Hooks & Prompt Caching

TL;DR

  • CLI customization hooks now wired through CopilotCLI provider
  • Inline summarization optimized for better prompt cache hit rates
  • Sessions merge skill gets richer context

New

  • CopilotCLI customization hooks — CLI provider now fully integrated with hook system for deeper extensibility.
  • Inline summarization caching — Summarization now runs within the agent loop to maximize prompt cache efficiency and reduce redundant API calls.
  • Sessions merge context — Merge skill receives additional context for better session handling.

Update: npm install -g @github/copilot-cli or upgrade Copilot Chat in VS Code extensions.

Source: Copilot Chat