[SOGo] OAuth2 in SOGo 5 and 6: PKCE, audience, docs?

[tobias.we...@uni-marburg.de]

Hi,

quick questions regarding OAuth2 support in SOGo:
- Are there notable improvements to expect in SOGo 6 compared to 5.12?

- Will PKCE be supported in SOGo 6?

- Is there support for an audience claim, or how is token validation 
handled in that regard?

---

Also, the OAuth2 documentation for 5.12 seems somewhat incomplete. For 
example, the redirect URI is not documented and must be inferred. Are 
there plans to improve or update this documentation?

Any technical details or pointers are appreciated.

Best regards, Tobias