I just upgraded my Photoshop CC to 2015.5 and I'm liking the enhancements a lot. Face Aware Liquify is fantastic, but IMO even more useful than that is the Select And Mask workspace. I've always had trouble masking hair, with this enhancement I'm able to get some pretty darned good results fairly easily.
I'd like to learn more about the subtleties of Select And Mask, so far I haven't been able to find any good tutorials online - probably just too soon for them. If anyone has found a good one can you post a link?