Update 1.4.0 brings with it some bugfixes, as well as a new change:

- The rider of a horse will no longer be able to accidentally hit the passenger when lagging
- The passenger will no longer be able to hit the horse he is riding

An additional toggle in the config file has been made which if enabled (default is disabled) forces the player to chose between horse armor or a passenger, similar to the choice between wearing a chestplate or an elytra.
If enabled, a passenger will no longer be able to mount a horse wearing horse armor. Any passengers already on a horse will be dismounted when horse armor is equiped.

Additionally, I will no longer be offering support via Discord DM's as it has become to overwhelming to maintain. Instead, I encourage you all to join my discord server instead. This server will user both for support for DualHorse, as well as my other plugin JoinLeaveCommands.

Thank you for your support and suggestions!

https://discord.gg/aP6czXzxhc