NOTE: Don't buy it. In 2022 it still lacks of live view in web. It requires some legacy plugin crap for Windows.
Family tree:
Shipped firmware:
V4.71.106 build 220630
V5.0 build 220624
V4.0.1 build 220411
V3.0.7.500
Next firmware:
V4.73.006 build 221108
V5.0 build 221103
V4.0.1 build 220929
V3.0.7.500
Not released:
Next firmware:
V4.74.017_230418
V5.0 build 230414
V4.0.1 build 230213
7.3.5.0
V3.0.7.500
Latest firmware:
V5.0 build 230608
V4.0.1 build 230617
7.3.5.0
V3.0.7.500