I attached the snip I made of the Galaxy patch notes.
Yep looks like they messed up and included it by mistake. Didn't somebody find API entries or a support page recently? I guess this all but confirms it.
Honestly I think they make these leaks on purpose, in order to keep us hyped and interested to compensate for the disappointment with certain releases.
Sort of a perverse inside joke and "put a carrot in front of the donkey to keep it going".