The latest Datamine Discover AddIn for ArcGIS Pro release is now available using the link below:
This version supports ArcGIS Pro version 3.0 and 3.1. For instructions on how to upgrade to ArcGIS Pro 3.0 and Discover 2.0 check the related article. This is a full install that will upgrade any previous version of Discover. Or it can be installed on a clean/new computer.
Alternate download link for latest version is here -
If you are using ArcGIS Pro 2.8 or 2.9 the latest version of Discover, (v1.2.x) that supports these can be downloaded from here -
Note this only has limited support. More details on ESRI's support life cycle for old version can be found here