Starting in summer of 2024, Microsoft will transition the default Windows Mail and Calendar apps to the new Outlook for Windows. Key changes include:

1. 1. Taskbar, Start Menu, and Desktop Shortcuts: Mail app and Calendar app will be replaced with new Outlook if freshly installed on Windows 10 or 11 devices.
   2. Toggle Relocation: The toggle to switch back to Mail & Calendar will move from the Ribbon to the About Outlook page in Settings.

No Action Required: No preparation needed. For more details, visit the Microsoft Support page.