As of the 8th of August 2017, Fedora 24 has reached its end of life
for updates and support. No further updates, including security updates, will be available for Fedora 24. A previous reminder was sent on 21st of July 2017 [0]. Fedora 25 will continue to receive updates until approximately one month after the release of Fedora 27. 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. Mohan Boddu.

[0]https://lists.fedoraproject.org/arch...VPUPGLESLOKBN/
[1]https://fedoraproject.org/wiki/Fedor...nance_Schedule
[2]https://fedoraproject.org/wiki/Upgra...butionUpgrades