Mail and Calender app for windows have been updated to version 17.6308.42272. However, the update doesn't bring any new changelog, so only thing we can expect are some bug fixes and performance improvements.
Download Mail and Calender app from hereAlong with Mail and Calender app, Microsoft Office suite Word,Excel,Powerpoint and One note also got updated. And again the update brings some minor bug fixes.
Download Word Mobile from here
Download Excel Mobile from here
Download Powerpoint Mobile from here
Download OneNote from here