Fedora 21 is EOL'd as of December 1st, 2015.
Announcement:
https://lists.fedoraproject.org/pipermail/announce/2015-November/003296.html
Fedora 21 will reach end of life on 2015-12-01, and no further updates
will be pushed out after that time. Additionally, with the recent
release of Fedora 23, no new packages will be added to the Fedora 21
collection.
Please see https://fedoraproject.org/wiki/DNF_system_upgrade for more
information on upgrading from Fedora 21 to a newer release.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
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