Three versions of the Fedora OS are always kept active, at any given time, by The Fedora Project. These would be: 1. the current release, 2. the release before the current release, and 3. a new release that is in development. Last month saw the launch of Fedora 22 and Fedora 23 is in development, thus the time of Fedora 20 is over.
As of today, June 24, 2015, we suggest doing one of the following:
- Upgrade to Fedora 21.
- or Upgrade to Fedora 22.