Players can also take advantage of other updates like improved weapon textures, improved menu systems, and network optimization; horses are just the marquee feature for this particular update. Considering the overall path it has taken for players to get any sort of MMO-ish wild west game on the PC, this may be all you need. So go ahead and take your horse to the old town road, although we suspect you will be able to ride no more when someone shoots you and your horse.

Content retrieved from: https://massivelyop.com/2019/06/09/rusts-latest-update-brings-in-the-earliest-ridable-horses/.