Sad to hear you have problems but they're probably limited to yourself.
Depending on what repos you're using and what packages you've installed. So
it probably is safe to upgrade for everybody else. Not upgrading certainly is
unsafe.
This sounds like the train wreck which you get when you fill up a critical
partition. Is that the case here?df -h
If you are in full panic mode you can always boot off a live media and then
copy your precious stuffs away. Also I guess now would be a good moment to
remind everybody to make those backups.
