Upgrading To Ubuntu 8.10 (aka Intrepid Ibex)
I was bored last Friday so I did an Ubuntu upgrade. I'm now at v8.10 Release Candidate 1. Interprepid Abex is not a Long Term Support (LTS) which simply means this time around, you get only 18 months of support instead of 3 years. Of course, no one will stop you from upgrading to the next LTS version (9.04) in the near future. The official release of 8.10 should be around end of October, if no show stopper bugs surface. I've now got all the latest she-bangs, what-nots and the tingling feeling you get when running the latest and greatest version of your operating system 
Ubuntu.com has the list of new features and new bugs.
Upgrade was performed by invoking the update manager, either through the UI (System -> Preference -> Update Manager) or invoking it via a terminal (sudo update-manager -d)
A couple of upgrading hiccups -
- if you've got OOF3.0 installed, it's gonna be wiped out and replaced with OOF2.4.1 when you upgrade via the update manager. You'll need to uninstall OOF2.4.1 and reinstall v3 of the office suite.
- lost AWN, but that was fixed rather quickly but issuing sudo apt-get install awn-manager.
- lost most of my Compiz Fusion settings but not a big problem since you'd just need to reconfigure them. I also encountered terrible performance initially, but that's fixed too.
- had a weird problem where all my shortcuts and my home folder would by default be launched using file-roller (aka Archive Manager) instead of Nautilus. Fixed that by re-setting the default program to Nautilus for the folders and bookmarks.
Other than those few problems, upgrade went rather well. Do check out the 'what's new' list, you'll find that upgrading is very worth your time. Great work and congrats to the Ubuntu developers. Another great release.