Earlier this week, I upgraded my Xubuntu box from 13.10 to 14.04. I originally started this installation out at 12.10, and just kept upgrading. Some people like to do a clean reinstall each time, but not me. If I were down to reinstall my OS twice a year, I’d probably just use Windows!
After the upgrade I went looking for two major features of 14.04, the Whisker Menu and Light Locker. I couldn’t find them. Apparently when you do-release-upgrade, it just takes the packages you have, and upgrades them to what’s in the new release. However, if what you have comes from a collection of packages (xubuntu-desktop), the upgrade tool doesn’t know that.
So, for you to have Whisker Menu, Light Locker, Mugshot, etc. from 14.04, you will need to run:
sudo apt-get install -f
sudo apt-get install xubuntu-desktop
Even then, your Application Menu will still be on your Panel. You’ll need to go into your Panel settings and swap it out for Whisker Menu manually.
I ended up not using Whisker Menu or Light Locker, instead keeping the classic Application Menu and xflock4/xscreensaver as my lock screen.