Thank you Anil.   So if I understand correctly - for publishing a custom source connector to AEP's Sources catalog, we need to wait for AEP's Self Source Connector Framework release (as per Atul's reply). But publishing a custom destinations connector to destinations catalog is already supported. 

Thank you for the information Atul. Are you able to share date for the release?

Hi All,   Can someone point me to the documentation for building a custom source and destination connector? Additionally, how does one go about publishing the connector to AEP catalog for others to use?   Thank you