These are the changes to the platform REST API since its public release after a major remake with several new functions and a new role and role accounts structure in version 5.1.0. 

5.1.0 to 5.2.0

• Made it possible to specify the state in 'CDIServer - Create access', and thereby create platform-managed accesses without activating them immediately.
  
  

• Added a new API for activating an invited platform-managed access

  HTTP Method	URI Scheme
  POST	/server/access/{accessId}/activate

• Added a new API for retrieving a user agreement that is to be accepted and signed when activating an invited platform-managed access 

  HTTP Method	URI Scheme
  GET	/server/access/{accessId}/user-agreement-for-activation

• Changed the 'agreementTemplateId' property for 'ExternalRole' to optional in the 'CDIServer - Create external role' and 'CDIServer - Update external role' APIs. See property description in ExternalRole for additional information.

5.0.0 (internal release) to 5.1.0