As early as December, Microsoft announced new modern-style icons for Windows 10 devices, covering apps such as mail, calendars, calculators, photos, and more. Last week, Microsoft finally pushed the update to Insider testers. Today, however, the average user running the Windows 10 1909 system can also see this new icon based on the Fluent design language.
The external MSPU confirms this on the Windows 10 1909 Build 19569 platform based on the Fast Ring channel, and please be patient for a while if other system versions are not currently pushed.
In other words, this new icon is not bound to a particular version of the application. If you can’t wait, try manually downloading application updates at the Microsoft Store.