2.6 Versioning, Capability Negotiation, and Extensibility

There is no capability negotiation that is associated with this system. Any deviations from a specific version's implementation of these protocol specifications are documented in the respective protocol document. Capability negotiations between client and server implementations of these protocols are specified in the System Versioning and Capability Negotiation sections in their respective technical documents (TDs).

Three aspects of the system have multiple versions.