Starting with Unimus 2.2.0, APIv3 is being introduced. APIv3 focuses on covering what isn't available in APIv2 first, to achieve full feature parity between the API and the web GUI.
After API feature parity with the GUI is achieve, we will start adding endpoints into APIv3 which are currently covered in v2.
APIv2 will be supported for the foreseeable future alongside APIv3.
Swagger documentation (in OpenAPI format) is available at:
https://download.unimus.net/api-v3-preview/
Unimus also has a built-in Swagger UI you can access at:
http://your-unimus-ip:8085/api/v3/ui