I didn’t check the dates in that other topic, but if your forum is different from this one, you want to upgrade. You can run an upgrade on your forum, either from the web interface or from the command line. Any changes you see here are publicly available in the tests-passed (default) branch.
If the other forum doesn’t want to upgrade for whatever reason then there isn’t much your can do. If they are on the stable branch, you’ll need to wait some months before these changes hit there. Your can check the version by looking at the source of the page, it’s near the top.