I recently upgraded my Late 2012 15" MacBook Pro w/ Retina Display to Yosemite. After this, my computer has been running extremely hot. These temps are just from me typing this right now. Nothing running in the background. I have no clue what to do, and sending it in isn't really an option at this point. Even when I put it to sleep the fans are still running. The only way the fans will not run, is if I shut the computer down completely.