Beta 7 reboots and locks up a lot, and there is a bug in emplode that deletes tracks. There's other more minor stuff, but that's the main part. Thread.

"New users" would be people who want their brand new car stereo to work correctly out of the box and aren't willing to have their car stereo crash on them.

Remember that 1.03 is very stable and is a good piece of software in its own right. It's certainly not feature-poor and most people would be perfectly happy living with it for a long time.