HP blinks, says it will restore printer functionality, but there's a LOT more it needs to do

FWIW - The new firmware push will probably not be a big issue, IMHO - if they push it the same way as the FW that broke it.

I have an affected printer in my house. If I hadn’t moved it from one office to another and consequently reset up its networking (yes, I have separate subnets in my home…don’t you?) I’d have never noticed the “Install Important Firmware Update” message

SO people who update FW on their devices, will update again. People who don’t upgrade, aren’t affected. People who got the first upgrade and then threw out your printer… Well, I hope you bought a different brand…