Fedora 21 has reached its end of life for updates and support

As of the 1st of December 2015, Fedora 21 has reached its end of life for updates and support. No further updates, including security updates, will be available for Fedora 21. A previous reminder was sent on 27th of May [0]. Fedora 22 will continue to receive updates until approximately one month after the release of Fedora 24.

The maintenance schedule of Fedora releases is documented on the Fedora Project wiki [1]. The Fedora Project wiki also contains instructions [2] on how to upgrade from a previous release of Fedora to a version receiving updates.

Dennis

[0] https://lists.fedoraproject.org/archives/list/announce%40lists.fedoraproj...
[1] https://fedoraproject.org/wiki/Fedora_Release_Life_Cycle#Maintenance_Sche...
[2] http://fedoraproject.org/wiki/DistributionUpgrades