4 ms·

For new Apps it is mandatory, existing apps have until April of next year to support it before updates will start getting rejected.

• Operyl 7y ago
  Only mandatory if you use Facebook/google sign in.
  • dwaite 7y ago
    Any third party sign-in.
    • Operyl 7y ago
      Yeah, sorry, was over generalizing it. They did make that first-party exclusion for SSO thankfully.