Fedora has been very candid that they expect people to upgrade often. I recommend waiting a month or two after a major release (so they can get any burrs out), but then upgrade. Security patches for FC3 and earlier are available, for free... but they're called FC5 :-).
It's a trade-off; the advantage is that you get the newer/better stuff, tested to work together. That's a good choice for many. If you don't want to upgrade often, RHEL or Debian might be a better choice of distribution. You need to pick a distribution that meets your needs.
Copyright © 2017, Eklektix, Inc.
Comments and public postings are copyrighted by their creators.
Linux is a registered trademark of Linus Torvalds