2.6 Versioning, Capability Negotiation, and Extensibility

No capability negotiation is associated with WSUS. Any deviations from the implementation of a specific version 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 Versioning and Capability Negotiation sections in their respective technical documents. For more detailed information, see [MS-WUSP] section 1.7 and [MS-WSUSSS] section 1.7.

If the DSS or USS or client is not of a sufficiently high version to support the transfer of the data, then the client ultimately does not receive that data.