They've all been really quiet for the last few days, so I'm guessing they are trying to tackle a real tough nut like performance improvement, and they just can't nail it down.
I know they hoped to get a a17 stable before Christmas, but I suspect we won't see a stable until Jan. at this point. Mods are incomplete, skyscrapers aren't in, there are issues with the dedicated server, crashes, controller issues, vehicle and headlamp lighting, and general settings like resolution are having problems now.
That said a17 is still a breath of fresh air in the right direction, and a light of hope after a dismal 2018. I'm happy to at least be able to play a17e, and I'm sure things will get sorted eventually.