@FATeknollogee rolling means they constantly upgrade sw when ready. The opposite is sw which sticks at a given version and is subject to security fixes only.
Exactly. In Windows terms, it would be like MS Office updating from 2013 to 2016 automatically on any given day. Tumbleweed tends to update a couple times a week, but the updates are tiny. Just whatever applications have a new release and have been tested get released as they are ready, not in blocks together.
The big difference is that it is updates to packages and releases of new packages as they are available, not just patches that are provided. All OSes release patches on a regular basis as needed, or weekly. But rolling releases actually update the software versions all the time.