EDIT: I unaccepted the accepted answer because while it's an answer, it's quite frankly unacceptable. It was renamed to "annotate" to be more "friendly" to sensitive developers. What a user un-friendly thing to do. Sure, just rename standard features... What Atlassian dev manager got so butt hurt to feel the need to change this??
I feel like I'm going crazy, I used to use blame all the time by right clicking a file and selecting blame but it's not there anymore. I'm using v2.7.1.