In this video, Julieanne demonstrates how Artboards can increase your productivity when designing multiple versions of an image within a single document, as well as the new features and enhancements added to Artboards in the November release of Photoshop CC 2015.
And here are three additional Artboard feature enhancements that I didn’t point out in the above video:
1) You can hide the name of the Artboards using View > Show > Artboard Names.
2) “Snap To” behavior has been improved when using the marquee on Artboard (View > Snap To > Artboard Bounds).
3) You can change the matte color and border type for Artboards under Preferences > Interface.