Should I upgrade PPSSPP?

[cloudropis]

I have 0.9.6.2 right now, I downloaded it a while ago and shortly after a new version came out. I was going to update when I heard people talking that old saves weren't compatible with the new version. I don't really follow the PPSSPP development, was it a rare occurrence or has it been a well known issue with the new versions? And if it was, is it safe to upgrade now? In case I find out the old saves don't actually work anymore is there a way to revert to a previous version to keep them, or to convert them or something?

Also, slightly off-topic, what is the right section to ask something about PPSSPP and real hardware cross saving (AKA if I need something specific or if I just have to play a game on PPSSPP, copy the ISO and the save file over to a real PSP and resume)?