Without a doubt the coolest feature with the SD release, that was also showcased by @UTKARSH JAIN last week, is the heatmap workbench from the Workspace.

There is however something really critical to know if you want to test it out: you need the correct persona for your user to be able to view it. If you go to UI Builder you will see that the Risk Workspace comes in 3 versions. Only the sn_risk_workspace.operational_risk_manager role grants you the persona where this new feature is available.

if you also have sn_risk_workspace.business_op_risk_manager role, your workspace will show the Business Op-Risk Manager home page (it seems to be the "highest" risk persona somehow) - and this one does not have the Heatmap Workbench. If you are only an IT risk manager, you will also not see it.