After years of insisting that it's not a new edition, that there will no longer be a new edition, that the new books are merely "revisions," D&D finally caves in and admits that the 2024 revision is really a 5.5e.
(and of course, they keep insisting "it's not a new edition!!!")
The kicker is their reasoning, "you guys have been all calling it 5.5e anyway, so it's a natural thing to do!" 