NewOutlook · iOS
Outlook: Enhanced user interface updates for iPhone and iPad
Outlook for iOS users on iPhone and iPad will receive a refreshed user interface with modernized app chrome, navigation, and improved screen space utilization based on Liquid Glass design principles. No administrator configuration is required as this will be enabled by default.
Microsoft's description
People using Outlook for iOS on iPhone and iPad will see refreshed interface elements aligned with the latest Liquid Glass iOS visual experience, including modernized app chrome, navigation, and use of screen space. It will be enabled by default with no administrator action required.