I am at the point where I am considering upgrading to Saucy (Ubuntu 13.10) on one of my two dual-boots. I am debating how much breakage I can stand this early in the cycle. ;) Anyway, here are the instructions for the courageous:
To upgrade from Ubuntu 13.04 to 13.10 on a desktop system:
The instructions say to first open up Software Sources.
Then, you need to press Alt + F2 and type in “update-manager -d” (without the quotes).
Update Manager should open up and tell you: New distribution release ’13.10′ is available.
Then, just click on “Upgrade” and follow the on-screen instructions.
Users of other Ubuntu releases need to upgrade first to 12.04, and then to 13.10.
Ubuntu 13.10 isos can be downloaded from:
http://releases.ubuntu.com/13.10/ (Ubuntu Desktop and Server)
http://cloud-images.ubuntu.com/releases/13.10/release/ (Ubuntu Cloud Server)
http://cdimage.ubuntu.com/netboot/13.10/ (Ubuntu Netboot)
http://cdimage.ubuntu.com/edubuntu/releases/13.10/release/ (Edubuntu DVD)
http://cdimage.ubuntu.com/ubuntustudio/releases/13.10/release/ (Ubuntu Studio)