Outlook for Windows 10

Reports have suggested that Microsoft is working on a unified email client for Windows 10 that will replace the current Mail and Calendar apps. This new client, which is based on the Outlook web app, is codenamed Monarch and its user interface has been designed for all platforms.

In one of the documents, Microsoft previously confirmed that it working on a “One Outlook” client where a single email client will work across Windows 10, macOS and the web. This will allow the company to replace the existing clients including Outlook Win32, UWP and Outlook for Mac.

In the release notes of Outlook beta for Windows, Microsoft has now accidentally posted a screenshot of a new Outlook app featuring updated icons and rounded corners. The screenshot shows what appears to be a future version of the web-based Outlook app and it could be introduced during the Sun Valley update event.

Outlook for Windows

As we’ve reported earlier this year, Microsoft wants to change the look of default/native Windows apps and use rounded corners for app windows. This new leak seems to support our theory and findings.

While rounded corners may not be a big deal for some users, sources have indicated that this design language is part of Microsoft’s plan to address UI consistency issues on Windows 10. Combined with other cosmetic changes, it actually can make a big difference, with apps looking more modern and giving the interface a fresh feel.

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Outlook app

As you can see in the above screenshot, it also appears that Microsoft has added extra padding near the close, maximize and minimize window buttons. Likewise, the Outlook app is also getting new icons with rounded corners.

When finalized, Microsoft’s upcoming Outlook client will deliver a unified look across all platforms regardless of whether it’s running on Windows 10, macOS or the web.

In addition to Outlook, Microsoft is also believed to be working on new features and improvements for other inbox apps.