connect iq SDK v4.1.0.beta1 vs v4.0.10

Sorry, maybe I missed this.

Can someone explain me the version numbers of the connect IQ SDK please.

v4.1.0.beta1 is from 2021-10-12, but it includes the functions to access BodyBattery and StressLevel.
v.4.0.10 is newer from 2022-02-09, but these functions are missing. And according to the version number it's older than 4.1.0?

I'm really confused? Which is the latest SDK? And which should I use to develop Apps for a Fenix 7s?

Thanks for enlighten me