I’ve upgraded the engine that runs this blog to the latest version. Not sure if the improvements make any difference to me yet, though. The ability to back up the skins might be useful I suppose, but I trust our sysadmins to do backups :)
The upgrade went really smoothly. I am suitably impressed with the documentation and the fact that it “just worked”! Also I noted that they provide upgrade scripts from the last 6 versions to the latest version. That is really good as not everyone bothers to keep up to date and it would be a real issue if you had to upgrade to each version in turn in order to get to the latest version. A lot of software could learn from this.