Upgrade GNU/Linux Fedora from 14 to 15, 16, 17 and eventually 18 (with yum)

To upgrade GNU/Linux Fedora from 14 to 15, 16, 17 and eventually 18 with yum, there is no problem; you can follow the same instructions from

this post.

The yum options --releasever and --distro-sync introduced in Fedora 12 are very useful.

You can explore the Fedora documentation to get a modus operandi, and still find interesting instructions on this post.

Don't forget to import (and check !) the GPG key of the target distribution:
 - for Fedora repositories, check this page
 - for RPM Fusion repositories, check this one

For instance, to upgrade from Fedora 17 to 18:
rpm --import https://fedoraproject.org/static/DE7F38BD.txt

And like after any Fedora upgrade:
 - ensure there is no dependencies problem like explained into this post.
 - perform a great configuration files merging campaign to ensure having the up to date features while keeping your own specific configuration (globally the XXX.conf and XXX.conf.rpmnew files).

For next upgrade, I'll post article about:
 - Fedora upgrade from 18 to 22 with fedup
 - Fedora upgrade from 22 to 23 with dnf