This may not be new information but I only learned of it now.
Google claims that “you can continue to view and search for historical Usenet content posted before February 22, 2024 on Google Groups,” but personally I would take this as a sign to start archiving anything and everything you can - I’m not one to trust tech companies at their word. (While this obviously doesn’t spell the end of Usenet altogether, it is the death of a prominent method of accessing Usenet posts online without any specialized protocols.)