just google os 5.0 for bold,but between you and me its not worth it.certain apps dont work and for some reason my tones and sounds went very quite??????.funny i tried it again over the weekend and within about 2.3 mins of installing it i remembered why i stay with 4.6
I'm running it and haven't had any problems yet. The sound volume settings have changed, with 4.6 you had choices of low, medium and high. With OS 5 the volume levels are selectable by number, 1-10. To me it seems 8 is about the same as medium was on 4.6. Not sure if 10 equals the high setting or not, but yes, the volume levels in general seem lower on OS 5.
As for apps, I don't have many 3rd party ones installed, but what I do have all work fine.