update manager not notifying about lts release

[scar]

Nils Kassube @ 06/05/2012 10:11 AM:
> After all, those who are still using 10.04 don't want the
> latest version of everything but prefer a stable system.

this's what i was thinking; after reading the -d option is for 'devel',
i figured there might be some delay after the newest release to squash
some big bugs, so makes sense to wait for 12.04.1.  thanks all.