Outlook Mail and Calendar has received a pretty solid update on both Windows 10 desktop and mobile, bringing Year view in Calendar for all, along with the ability to mark your calendar with holidays. Here's the official breakdown of what's new in Outlook Mail & Calendar:

Mark your calendar with holidays

Jump to any day of the year with Year view

In addition to the above changes, we've noticed that this latest update appears to fix email rendering issues that were present in prior versions. An example of the fix can be seen below: