I'm now trying to keep fairly up-to-date on Ubuntu versions, and the upgrades are becoming easier to do - very little needs 'fixing' post-upgrade, even if you're not using a vanilla install (I don't user Unity but Cairo-dock, and prefer Nemo over Nautilus). I'm also having issue both recovering from Suspend (using Nouveau) and stability problems on some pages with Chromium.
Here are the set of changes required post upgrade to 14.10 from 14.04:
Zeitgeist
Zeitgeist is an irritating Unity hangover which builds a large sqlite database of files/searches/etc. on your local computer. Even with all options disabled it runs in the background, so I always kill it off by deleting it's autostart file from /etc/xdg.
Nemo
The Nemo package in the official repo's no longer handles the desktop (the effect of this is that the desktop does redraw the screen correctly ... the 'old' image is left behind when you move windows around) However there is a PPA which is maintained by the webupd8team and this fixes the issue. Add, or re-enable, their PPA, then uninstall Nemo (it will have been replaced with the official one and won't play happily with the PPA version) then reinstall it from the PPA.
... and that's about it!
