Another question with this URL:
If you choose to upgrade before then, you can pass the -d option to the upgrade tool, running do-release-upgrade -d or update-manager -d, to upgrade from vanilla 10.04 to 12.04.
Am I correct in assuming that if I am actually running 10.04.4 (not vanilla?) that the above command line instructions would NOT work? I really do not mind waiting for the GUI Update Manager to show me the availability at 12.04.1 in July. I am just curious.