It would be nice to know when new software or firmware releases are available.

This might work as a forum feature request.
If there was a thread dedicated to a certain product (e.g. SPARK HDMI) and every time a new firmware was available, CS could post it in that thread.
All of us who own SPARK HDMI devices could SUBSCRIBE TO THAT THREAD and we would be instantly notified of updates.

You could create a thread for each product area that was dedicated to updates.

All you would need to do is turn on the subscription option on this forum application.

...unless this is already a thing and I simply don't know what I am doing...

Andrew