1.7 Versioning and Capability Negotiation

The Health Certificate Enrollment Protocol does not perform any version detection or capability negotiation by itself since this is the first version.

Although this version of the Health Certificate Enrollment Protocol does not support the concept of versioning, there is a version number field in Health Certificate Enrollment Protocol messages. This field is intended for future use. In the current version of the Health Certificate Enrollment Protocol, implementations are required to set the version field value to "1.0". The fixed value version field (see sections 2.2.1.2 and 2.2.2.2) is intended to enable future versions of the protocol to negotiate a version that is commonly supported by both HCEA and HRA.