In my opinion the pop-up menus that popped up with mouse hover were the PRIMARY ADVANTAGE that Jenkins had over Hudson! Bring them back!
I can understand the need to allow it to be disabled, but not for getting rid of it entirely. The hover menus allowed me to get to almost anywhere in Jenkins with a single click. The new version is back to the multiple clicks and page loads to get anywhere that drove me crazy in Hudson.
Note I will be upgrading to an older version until this is fixed.
I wonder if it would be possible to restore old functionality with a grease monkey script