Wordpress - Newer isn't always better ?

Tryed to write some posts on this platfom, failed without any explination. Now I'm writing again. What Wordpress 2.7 give us new ? Well, just the quickpress who isn't working for me. And the dashboard menu is a mess. In the rest is all the same, like the other version. I don't see to many other bugs. You can stay for the moment on the 2.65 version, I don't consider this version good enough.