On 26th December 2025, Microsoft released a set of updates for Microsoft 365 Copilot and its productivity tools. Key improvements include:

• A simplified navigation pane in Microsoft 365 Copilot for faster access to chats and notebooks.

• Preview and chat support for Word, Excel, and PowerPoint files within the Copilot Android app.

• A new Model Selector giving users control over AI response depth through different reasoning modes.

• Enhanced data‑loss prevention support for SharePoint Online administrators.
  These updates expand AI‑assisted productivity, making the Microsoft ecosystem more responsive and user‑friendly.