Well hello all,
I just finished my first migration of TFS B3R to TFC RC today. It went very well, and the build is much more stable and faster.
If you follow the upgrade guide you should be all set. Like Rob likes to say RTFM it goes for the upgrade manual as well. One little thing to note in the upgrade manual it does not mention the fact you should apply hotfix KB912838 before install TFS but it says to do in the install guide. After speaking with my Microsoft contacts it should be applied prior to installing TFS on the upgrade box. If you are installing TFS for the first time with the RC, just follow the instruction available here and you should be ready to go. If you're an oldy like me and don't read the installation guide anymore, I recommend you do it this time around since there are some modification to it, namely those KB's you now need to install.
The upgrade process is pretty painless and the first thing you'll no doubt notice is the nice friendly names showing up in the work items (me like this very much...)
This was a Single Server upgrade, tomorrow i'm doing the Dual Server upgrade (that will be a bit more complicated since the Reporting Services is now on the AT so there is a lot of little things to do like copying and moving the RS key over to the AT. I'll let you know how it went and if there is anything to watch for.
Great job on the RC and on the upgrade tools guys, I can see the finish line...
Cheers,
ET