A combination of things

The only program on my computer that I allow to update automatically is the Anti-virus and that is for Definitions only. I've had programs completely blow themselves up by automatically updating the software. So, when a vender has updated its program, I have found that if I really need that updated software it is best to just uninstall the old version and install the new one. I normally wait for quite a while to let any bugs get worked out of that new version first, though, and I keep an .exe of the old version around just in case. It's all just easier that way.