Quote Originally Posted by Velvet_Lunarfang View Post
These patch cycles usually always end up having a bug that they don't even test before release. Might as well increase the patch cycle to a year since when they do it's half-assed
The only thing I know for certain is that they finish a lot of things weeks of months ahead of time and spend that time testing it for bugs, fixing them and then repeating that over and over, reducing the amount of bugs from thousands to hardly any.

Major Patch Development Cycle
Bug Counts Over Time