Yesterday I upgraded my notebook from 14 to 15. Problems: 1st: it deleted network configurations. 2nd: rpmdb was left quite messed. Several dependencies non satisfied. As this particular box was already upgraded from 13 to 14, there were problems dealing with very old things (fc13 stuff). Much of upgrading had to be done by hand (including uninstall & reinstall packages). Yum failed short. 3rd: kde & kdm not upgraded by default. Thus kdm failed to start. I had to switch to gdm, update kde, kdm, switch to kdm ... not intuitive for average user. Nothing really important for average nerd but annoying to users not proficient in system admin chores. CdAB -- devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/devel