Where can I find what current and upcoming features are being released for Webex cloud? My company is moving to it and I am getting alot of questions if certain features are available or are coming soon for the platform (specifically around the train...

I'm looking for an architecture diagram of how the proximity feature works. Specifically because we are trying to troubleshoot proximity share issues via a firewall or proxy. Anyone know where I can find a high level overview of how it works?