1. Click on the Word icon on the dock.
2. On the top left corner of the screen, click on Word (1), then About Word (2).
3. The latest version is shown under the logo banner (refers to the screenshot below).
With the Office 365 subscription, all of your office products will automatically be updated to the newest versions when they come out. If you are having issues with an update or any office product please contact IT.
4. Click OK.