The developers behind the "Core" fork of the reference Bitcoin client announced that they would be retiring the legacy "Alert" system in their client fork. The patch to remove the legacy Alert system from the reference client was already under consideration by the Bitcoin Foundation in November of 2014 and was considered a standard part of any reasonable build by the end of 2014.
Naturally, though being two years late to the party, the developers of the "Core" fork make no mention of the Alert system's previous removal from the reference Bitcoin client in their announcement. Further, developers of the "Core" client fork announced their intentions to fire the Alert system twice as part of their announcing its retirement.
Lol. The alert system has been out of the Bitcoin software for some time. The announcements are only relevant to _outdated_ software that still has it. Cheers.