I sure wish I could just upgrade to the latest version like you can in Ubuntu. I'm still using Elyssa. I don't wish to go thru the hassle of a fresh install. Clem,
I thought you were working on that with the last release ?
From the Wiki
To upgrade to Linux Mint 7 x64 from Linux Mint 7 x64 RC1, launch mintUpdate, enable the “dist-upgrade” option in the preferences window and refresh the list of upgrades. Make sure to apply all level 1 and level 2 upgrades.
An upgrade path for Linux Mint 6 “Felicia” x64 users will be published in a few days.
Sorry, no mention of upgrading all the way from Elyssa. Your best bet maybe to just backup /home and do a fresh install. It's really not that tough.
I upgraded from the 64bit RC and only had two apps to update.