I love how it deletes EVERYTHING when you update. Server list, minimap waypoints, and last but definitely not least, your goddamn singleplayer saved games. Not even a quack of a warning. Had I lost my Technic 6 world with all those custom mods that took a lot of effort to install, I would've punched a baby in the groin. I've been using computers for ages so thankfully I'm paranoid about backing up before even the most insignificant action.