I wonder how long it will take them to get to 2019 VINs.
I think mine might be among the last to have been built with HW2.5 (which is especially annoying when they were actively saying that all new cars at the time had HW3.)
I would guess that they would really like to get everybody on HW3, so they don't have to develop and test on three different platforms (HW2, HW2.5, and HW3) and there must be some lawyers looking for a chance to file a class action the moment there is a material AP difference between post April 2019 cars sold with HW2.5 and HW3 (the time period in which they were claiming all cars had all FSD hardware)
Fingers crossed that this won't take forever to roll out.