The V1 API present under the /api/v1 URL namespace, should be considered deprecated as of the launch of the stable API set under the Service and Session APIs.
New integrations should not target the V1 API and should instead use the APIs documented here under /api/service and /api/session. No new APIs or functionality will be added to V1, however the V1 API will be maintained for the foreseeable future and we will give notice if we plan to remove it in the future.
Interactive V1 documentation can still be found after installing Designer by navigating to d3Manager > Help > Open API Documentation or by browsing to http://[serverip]/docs/v1.
