https://www.mediawiki.org/wiki/Release_notes/1.26#MediaWiki_1.26.3
Updates may require up to 24 hours to propagate to mirrors. If the following command doesn't work, please retry later:
sudo dnf upgrade --refresh --advisory=FEDORA-2016-3093027736
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This update has been submitted for testing by mooninite.
This update has been pushed to testing.
This update has reached 7 days in testing and can be pushed to stable now if the maintainer wishes
This update has been submitted for stable by mooninite.
This update has been pushed to stable.