Why oh Why would you change the maximize button!!!
Just installed Yosemite, and noticed that the functionality of the green maximize button has been fundamentally changed. It has now been turned into a "full screen app mode" button. No longer can you just expand the contents of the window to fit the contents or your screen size. Why would you change something that has existed that way for 20 years? Every OS, on every platform has this button work the same way, but not on Yosemite. I'm just dumbfounded...