Ok, since this is an RC, I am going to call it a bug otherwise I probably would have never noticed it[;)]
1. I have my up2date for firmware set to manual and pattern updates to 6 hours. (screenshot1)
2. If you notice in webadmin dashboard, it says last check 424 minutes ago. (obviously more than 6 hours)(screenshot2).
3. I took a look at the logs and filtered by the term "starting up2date package downloader" and can see that it runs at fairly even 6 hours intervals but not exactly. I guess depending on the availability of the new package. (screenshot3)
So the dashboard screen shouldn't go above the max interval specified in the up2date check interval, or it should say that the last pattern was installed 424 minutes ago (which I think it is currently doing)