From the source
GitHub's September update for Copilot in Visual Studio 2026 adds three capabilities: a Git agent that explores pull requests, changes to Bring Your Own Model, and a NuGet vulnerability fixer.
- The Git agent can now explore a pull request, letting users open Copilot Chat, select the Git agent, and attach a pull request from the Git Repository window to get a summary with navigable links to comments and files.
- That requires connecting the Git provider's MCP servers, and GitHub and Azure DevOps are both supported.
- BYOM, available in preview, lets teams use their preferred models through GitHub Copilot or their own deployments, whether or not they are signed in to GitHub, and is on by default across the Community, Professional, and Enterprise editions.
- It now requires the new Agent (Preview) built on the GitHub Copilot SDK-powered harness, so the previous Ask and Agent modes no longer support BYOM and previously configured Ollama models must be re-added; supported providers include
Microsoft Foundry,
OpenAI,
Anthropic, and Ollama.
