Changes to Release all sessions

removed the request body

request body became required

added the new optional query request parameter projectId

added the non-success response with the status 503

added the optional property linkToDocs to the response with the 500 status

removed the optional property context from the response with the 400 status

removed the optional property error from the response with the 400 status

added the required property success to the response with the 400 status

the response property context/items/params became required for the status 400

the response property context/items/params became required for the status 500