It’s great to know that newer version 3.6.0 of camunda modeler was released on January 27, 2020.
Modeler 3.6 release notes can be found here:
https://blog.camunda.com/post/2020/01/camunda-modeler-3.6.0-released/
But found that the docs page is not updated for Quick Start : Deploy the process. The docs page was still referring to the camunda modeler version 3.0.0.