Summary
On October 15, 2026, GitHub updated its Copilot integration for Slack and Microsoft Teams to work across multiple repositories in one conversation, so users can track pull requests, investigate issues, and review activity across repos without switching threads. @GitHub can now be mentioned anywhere in a message and can use shared Slack messages and threads as context.
What changed
GitHub Copilot in Slack and Teams added multi-repository support within a single conversation (e.g., 'Show me all my open pull requests across repositories'), the ability to mention @GitHub anywhere in a message rather than only at the start, smoother repository switching, use of shared Slack messages/threads as context, and reliability improvements for task startup and recovery from interruptions.
Why it matters
Pushing cross-repo PR and issue triage into Slack and Teams meets developers in their chat tools and makes the Copilot agent a daily workflow surface outside the IDE and github.com, deepening GitHub's reach into the collaboration layer where work is coordinated.
Evidence excerpt
GitHub Copilot in Slack and Teams now supports working across multiple repositories in a single conversation. Mention @GitHub anywhere in your message, not just at the beginning.