Microsoft Just Went Crazy

Major announcements at the Microsoft Build 2025

Author

Aditya Kumar Saroj
May 21, 2025

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At the Microsoft Build, the annual event for developers, Microsoft has made several huge and unexpected announcements.

More than 50 announcements have been made already, I went through all of them, and here are some really important ones according to me:

  • GitHub Copilot is Open Source: The GitHub Copilot extension in VS Code (which I regularly use) is now open-source under the MIT license. This means that you can now legally modify the Copilot code and sell it as a new product without being jailed.

  •  Copilot is now part of GitHub: It is called “GitHub Copilot” but it was an AI-coding assistant that could be integrated with IDEs like VS Code, Visual Studio, IntelliJ. Not anymore. The Copilot is now part of GitHub - you can tell it to raise a PR, solve an issue, or run tests right from your IDE using the @github command or directly using the “Copilot” button on the GitHub website.

  • NLWeb: Natural Language Web is an open project that aims to interact with the web using natural language. It is in its early stages; you can find the GitHub repo here.

  • Windows ❌ LLM-OS ✅: You will not find it worded like this anywhere but Microsoft is not enabling MCPs across Windows apps. This will be available in a private developer preview with select partners in the coming months. Initially, the plan includes the MCP Registry for Windows and MCP Server for Windows.

  • Publishing apps to Microsoft Store is free now: Starting from June 2025, individual developers can publish apps to the Microsoft for free. This makes Microsoft Store, the first such platform in the world.

  • Microsoft Discovery: A platform to enable the use of AI agents for scientific discoveries. Microsoft Discovery is built on top of a powerful graph-based knowledge engine. It is working already! -

One of the more exciting early use cases of Microsoft Discovery is unfolding at the Pacific Northwest National Laboratory, where scientists are using Microsoft Discovery’s advanced generative AI and HPC capabilities to further develop machine learning models that predict and optimize complex chemical separations—a critical process in nuclear science.

Scott Godwin, Director, Center for Cloud Computing, Pacific Northwest National Laboratory

  • Azure AI Foundry and Windows AI Foundry: Two different things with the same name (just like Copilot for Windows, Copilot for Teams, and GitHub Copilot).
    Started in March, Azure AI Foundry is a platform to design and manage AI apps and Agents with the power of Azure. Apart from the 10,000+ open-source AI models, Foundry also has models like Grok 3 by xAI, and models like Flux Pro 1.1 and Sora to be added soon.
    Windows AI Foundry is an evolution of the Windows Copilot Runtime. It offers a unified and reliable platform supporting the AI developer lifecycle from model selection, optimization, fine-tuning and deployment across client and cloud.

Which announcements caught your eye?

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