I didn't find anything about perfect forward secrecy support, so I think it's not supported.
You can generate ephemeral Diffie-Hellman keys and use it for one session.
This is done for voice / video calls. We plan on overhauling the encryption system to introduce PFS for text messages as well as sessionless messaging, but it might be a while before that happens.
I didn't find anything about perfect forward secrecy support, so I think it's not supported. You can generate ephemeral Diffie-Hellman keys and use it for one session.