Mylar is being renamed to Mylyn. Even though the name change is really last minute for the Europa release, I do understand the reason why this must happen.
My recent Eclipse 3.3 installation still had the Mylar-branded code so I decided to uninstall all Mylar features and plug-ins. After the uninstall, I connected to the Europa update site, downloaded the Mylyn features (dated June 15th) and started playing with it.
The first thing I needed to do was to recreate a task repository that points to my Eclipse XPS project hosted at Google Code. That should have been really easy because a long time ago I figured out how to do that. Well.... not this time...
There is no trace of the generic web repository connector that is needed to connect to web based issue trackers. Where did it go?
I really hope that I made some silly mistake. It would be a real pity if it turns out that the Mylar-Mylyn rename jeopardized the quality of the code this close to the Europa release.