Lately theres been bugs with updating to a new version. so far many people are having problems with 1.5, being the game freezes and tries to make an error window but shuts down before it displays anything.
Possibly a built in verison changing device like the texture pack switcher built in. this would help to switch to an older version, if the latest version isnt fully working or you use older mods. ive already completed my achievements but 1.5 is a pain with the freezing when i try to do other things.
this would be quite as effective as when the beds showed up. look how useful they are now and even usable in multiplayer too. its made things easier and less iritating.
anyone agree with this idea?