I've just upgraded from 6.1.3 to 6.2.1, and I've noticed that the Splunk Bar (the one with the dropdown menus like "Message", "Settings", etc.) has changed. This is OK, but my application is still showing the 6.1 version.
It only occurs for custom templates that I'm using with Django, not for Simple XML dashboards.
This also occurs on a clean install of 6.2.1, with a new Django application created using the standard instructions (http://dev.splunk.com/view/SP-CAAAEMS) which basically amounts to: splunkdj createapp myapp