My blog is running 2.7.1 but this was a special upgrade for me. I used the automatic button instead of doing it manually. I had never trusted the automatic process as I have heard horror stories of broken WordPress websites.
I did it because I have to go to work to minutes ago and the the fact that the automatic plugin upgrades have been working out very well. As usual I took the precaution of backing EVERYTHING up but I did not have to use it. Thumbs up to the WordPress people.