So, I have a Macbook. I've been using Photoshop CC 2015 on it for almost 4 months now without any issues. Then today, I see an update. As I proceeded to update it says it will copy my preferences over to this new swank CC 2015.5 version and delete the old version. I honestly did not think it prudent to save the previous version since I trutly thought you guys had your crap together. Well, I was SOOOOOOO wrong. After install the latest version of Photoshop CC 2015.5 and opening it on my MacBook it first froze the app and I had to force quit. Next time I attempted to open a RAW file, it reported some nonsense about the graphics card. Then I adjusted some of the settings (setting I might add that worked fine with the previous version) and was able to open one of my RAW files but when the ACR window appeared it looked normal for a second and then all the texted dimmer. And, if I attempted to touch any of the sliders, the window when completely white but the functionality was still intact (like adjusting white balance etc). I just could not see what was going on. Perhaps you should text these apps on a MacBook (min is an early version 2015 with 1.3Ghz processor and 8 GB ram). Please provide a means to revert back to CC 2015 from 2015.5 so I can work my photos again while traveling.
Sorry for the inconvenience !
Kindly refer the link shared below which will help you get back to the previous version :http://blogs.adobe.com/adobecare/2015/06/16/how-to-find-and-install-previous-version-of-ad obe-apps-in-cc-2015/
Thank you! At least NOW I know where to look for previous versions that eluded my view last time. In plain sight well sort of.