

The WES defines the technical environments in terms of:

If NHS organisations or system suppliers are using unsupported client software versions, connecting to NHS Spine systems will not be fully supported until migration to a supported version. Use of client software versions which are not listed in the WES are not supported by NHS Digital for connectivity to NHS Spine systems. The WES defines the versions of software required to be installed on client machines in order that they are supported by NHS Digital to access NHS Spine systems and applications requiring a smartcard.
