Hi @anton.yereshchenko, thanks for the post.
We’re certainly happy with the changes included in this release as well!
The ability to log into the SDK with email/pw was completely removed from the SDK platform. Moving forward, OAuth will be the recommended approach to authenticate users. A good place to get started with implementing OAuth would be our docmentation.
One important factor is that we do not yet have full support for PKCE OAuth, so server-to-server is the only option. If you have constraints preventing you from implementing server-to-server (i.e. no ability to host your own server), PKCE will be the best option once it is publicly available.
Thanks!