Agent · GitHub Blog
GitHub Copilot in Visual Studio — March update - GitHub Changelog
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March 2026 brought a major step forward for GitHub Copilot extensibility in Visual Studio, with custom agents, agent skills, and new tools that make the agent smarter and more capable.
Key facts
- Here’s what’s new with GitHub Copilot in the March update of Visual Studio 2026
- March 2026 brought a major step forward for GitHub Copilot extensibility in Visual Studio, with custom agents, agent skills, and new tools that make the agent smarter and more capable
- To learn more about what’s new, check out the Visual Studio blog and release notes
- Stay up to date on the latest Copilot features by following the Visual Studio blog, where you’ll find roadmap updates and opportunities to share feedback
Summary
Here’s what’s new with GitHub Copilot in the March update of Visual Studio 2026:. Build your own custom agents: Define specialized Copilot agents as.agent.md files in your repository. Custom agents get full access to workspace awareness, code understanding, tools, your preferred model, and MCP connections to external knowledge sources. Enterprise MCP governance: MCP server usage now respects allowlist policies set through GitHub. Use agent skills: Agent skills are reusable instruction sets that teach agents how to perform specific tasks. Define them in your repository or user profile, and Copilot automatically discovers and applies them.