Surprising no one, Microsoft's Build 2025 conference is mostly centered around its Copilot AI. Today, the company announced that it has begun rolling out its "Wave 2 Spring release," which includes a revamped Microsoft 365 Copilot app.

A redesigned Microsoft 365 Copilot app on Windows PCs, Copilot Notebooks, and image generation features are starting to roll out to commercial customers.

Microsoft says that all of this tuning happens within the Microsoft 365 service environment. In simple terms, your data stays within your company’s secure Microsoft space, and Microsoft will not use it to train its own large language models.