In a few months time we will be releasing 14.04 Trusty Tahr LTS.

Up to now we have been concentrating on package and image testing for Trusty.

Now, we need to start running upgrade tests, most importantly the LTS to LTS upgrades (from 12.04 to 14.04) and as usually, the regular upgrades (from 13.10 to 14.04).

The testcases are present for both 64 and 32 bit at:
    http://iso.qa.ubuntu.com/qatracker/milestones/308/builds/57247/testcases
    http://iso.qa.ubuntu.com/qatracker/milestones/308/builds/57248/testcases

It would be infinitely better to be have upgrades tested with real data and desktop customizations, but at worst tests via Virtual Machines will check the basic upgrade path.

NOTE: If you are testing with real data, please make backups first!