A new plugin mode has been added:

1. If you add it to the plugins folder on the server, it will work as a plugin.
2. If you add it to the mods folder on the client, it will work as a mod. In this mode, for your friends to be able to join you, you need to open your single-player world to LAN.
   

add 1.21.10 supprt on proximamp

EN
A bug was fixed where, upon server startup, the plugin retrieved the local server version incorrectly, causing the server not to appear in the connection menu.

RU
Исправили ошибку, из-за которой при запуске сервера плагин неправильно определял его версию, и сервер не отображался в меню подключения.