We're moving from JIRA 5.2 to JIRA 6.1. I noticed in testing a difference in how the dashboard button in the upper left hand corner of JIRA works.
Version 5.2:
Clicking the dashboard button would take me straight to my default dashboard (I only use one).
Version 6.1:
Clicking the dashboard button forces a drop down menu where I then must choose between my default dashboard and the manage dashboards option.
So a task that used to be one click, is now two. I know, I know, nothing is broken, it's just a usability issue I noticed and wanted to see why it was changed to work this way.