copilot

Copilot CLI v1.0.13: Performance & MCP Fixes

Copilot CLI 1.0.13 brings faster startup with V8 compile cache, MCP server reliability fixes, and conversation history rollback. Plus Windows clipboard fixes and reduced CPU usage during streaming.

TL;DR

Faster startup with V8 compile cache and parallel initialization
MCP server reliability improvements and OAuth fixes
Conversation history rollback now works with /rewind and double-Esc
CPU usage cut during streaming, clipboard corruption fixed on Windows

New

/rewind and double-Esc timeline picker — Roll back to any point in conversation history, not just the previous snapshot.
MCP server LLM inference — MCP servers can now request LLM sampling with user approval via review prompt.
Parallel CLI startup — Terminal detection, auth, and git operations now run concurrently, reducing startup time.
V8 compile cache — Repeated invocations parse and compile faster, cutting initialization overhead.

Fixed

Shell process cleanup — Processes are now properly cleaned up when a session ends.
CPU usage during streaming — Optimized spinner rendering and task polling reduce resource consumption.
SDK exit_plan_mode.requested event — Now always emitted, regardless of callback configuration.
MCP Entra ID consent screen — No longer appears on every login for Microsoft Entra ID authenticated servers.
Grep and glob timeouts — Search results return promptly when timeout is reached.
Keystroke dropping in dialogs — Elicitation dialogs no longer lose keystrokes when typing quickly.
Windows clipboard corruption — Native Windows copy no longer includes stray U+FEFF character at start of pasted text.
--config-dir ignored on resume — Config directory flag now respected when resuming sessions instead of silently falling back to ~/.copilot.
MCP registry reliability — Automatic retries and request timeouts make lookups more stable.
MCP OAuth in ACP mode — OAuth authentication now works when CLI runs in ACP mode.
Reasoning effort with BYOM — Setting now applies correctly when using Bring Your Own Model providers.
Grep memory handling — Tool handles large files and long lines without running out of memory.
Mouse support text corruption — Pasted text no longer corrupted when mouse support is active.
Plugin uninstall cleanup — Uninstalling marketplace plugins removes cached data from disk.
Classic PAT error messaging — Clear error messages when using classic personal access tokens.
$BROWSER variable parsing — Now splits on spaces correctly.
MCP allowlist policy — Blocked servers are now hidden from /mcp show.