How do I ensure I'm using the latest DTH?



I set up my Honeywell T9 thermostat with Webcore quite a long time ago and was disappointed that the DTH was missing some basic functionality (i.e.“resume program” and others)

Question is: How do I know if there is a new/updated DTH that I could try? What if anything updates the list shown below to ensure I have access to the latest version of DTHs?