Copilot CLI 1.0.21: MCP Servers & Memory Fixes
Copilot CLI 1.0.21 adds MCP server management, cuts memory usage, and fixes UI glitches in the timeline, spinner, and login flow.
changelog
Product changelogs and update logs
Codex Model Availability Update April 2026
ChatGPT sign-in users in Codex lose access to gpt-5.1 and gpt-5.2-codex variants starting April 7. Full removal April 14. API key users unaffected.
Copilot SDK v0.2.2-preview.0: Hook Type Fix
C# and Go SDKs now handle unknown hook types gracefully, fixing session hangs when the CLI invokes unrecognized hooks.
GitHub Copilot Organization Custom Instructions GA
Organization custom instructions for GitHub Copilot are now generally available. Admins can set default instructions that guide Copilot behavior across all repos and tools.
GitHub Copilot in Visual Studio — March 2026 Update
Custom agents, MCP governance, profiling integration, and vulnerability fixes land in GitHub Copilot for Visual Studio March 2026 update.
GitHub Copilot SDK Now in Public Preview
Copilot SDK is now in public preview. Embed Copilot's agent runtime into your apps with custom tools, streaming, and permission controls across five languages.
Copilot Cloud Agent Now Signs Commits
Copilot cloud agent now signs every commit it makes, appearing as Verified on GitHub. This removes a major blocker: the agent can now work in repos with signed commit requirements.