Yes, they changed it. I remember testing it in late May 2024 where you needed to be on v2.45 or newer to login to the Android Wyze app.
Last month I tested it again here and verified that v2.40 is the earliest version you can login to Wyze app. I tested it again yesterday and I can confirm v2.40 is still the earliest version to login to Wyze app.
I don’t know specifically when did they make this change.