The September 2025 update to Visual Studio brings game-changing Profiler and .NET Modernization agents, more powerful MCP interactions, and smarter code reviews.

Highlights

Here’s what’s new with GitHub Copilot in Visual Studio 2022 (v17.14):

  • Profiler Agent: Get started with Profiler Agent to find and fix performance issues more easily than ever before. @Profiler in Copilot Chat provides AI-powered analysis to highlight bottlenecks, suggest fixes, and optimize benchmarks in a guided loop.

  • .NET Modernization Agent: Upgrade your .NET projects to the latest versions and migrate them to Azure with the help of the .NET Modernization Agent. Right-click your project and select Modernize or prompt @Modernize directly in Copilot Chat to get started.

  • Agent mode improvements: Use agent mode more seamlessly thanks to faster response times, cleaner file management, and greater control. Agent mode is faster, smoother, and more stable with updates every month.

  • MCP prompts, resources, and sampling: Leverage more powerful and customizable model interactions with MCP prompts, contextual resources, and agentic sampling.

  • Mermaid diagrams: Visualize data structures and workflows by generating Mermaid diagrams with Copilot and clicking Preview to see the rendered diagrams directly in your Markdown editor.

  • Smarter code reviews: Access more powerful local code reviews with advanced reasoning, more insightful comments, and support for custom instructions.

Download Visual Studio to experience all the new Copilot features today. To learn more about what’s new, check out the Visual Studio blog and release notes.

What’s next for Copilot in Visual Studio

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.

For the latest news, release notes, videos, and community conversations, visit the Visual Studio Hub, your central resource for all things Visual Studio.