I got the new drivers today and was immediately afraid to install, and for good reason. The last time I updated drivers they didn't work. I learned I had to uninstall a certain windows auto-update.
Anyway, I was hesitant to install todays drivers, but I did. I got a chance to look through the new design. It's very skimpy compared to the old one and I noticed it didn't detect all my games. Then a minute later the app crashed for no apparent reason, so I uninstalled and reinstalled Catalyst 15.7.1.
I didn't try any games or anything. I am running Windows 7 home premium and an R7 200 series GPU. Maybe if the control app didn't crash I'd not be afraid to use this new 'Crimson' thing but I am and this 'upgrade' seems unstable.