'A new version of Ubuntu is available. Would you like to upgrade?'

Sun May 1 05:16:24 UTC 2011

'Welcome to Ubuntu 11.04 'Natty Narwhal''

I'm on Edubuntu 10.10 (Maverick) + Ubuntu Studio meta packages. Is it safe to upgrade the version, even if some software is self build + a cheap trick to disable pulse audio? OTOH, excepted of fluidsynth-dssi, there's nothing from third party repositories on this install.

I would backup Maverick before upgrading, but I anyway would like to read about experiences, regarding to Ubuntu version upgrades.

-- 
Ralf