Microsoft today pushed out an update to its Mail and Calendar App for Windows 10 and Windows 10 Mobile. The app has been updated to new version 17.7805.42278.0. The company as usual has not provided any changelog for the update.
There are also no new visible changes or features seen after the update. Hence we presume that the update could be a bug fixing and performance improving update for users on Production Ring.
The update is currently live and you can download it by clicking the below link. The update is available for users on Production Ring on Windows 10 PC and Windows 10 Mobile.