UnrealEngine/Engine/Source/Developer/ZenPluggableTransport/README.md

This code corresponds to the code in UE5/Engine/Source/Developer/ZenPluggableTransport, and provides the API definitions for creating transport plug-ins for use with the Zen server. Pluggable transports allow us to support a variety of transport mechanisms, including some which are not possible to share with a general audience. These are developed and maintained in the UE tree or elsewhere for logistical and legal reasons.