It's been a while since the last RPG reset, but it finally happened! RPG was just reset and updated to 1.17, we've also updated SlimeFun and everything that goes with that (1.17 mcMMO, 1.17 GriefPrevention, ...).
Since RPG server is now running Minecraft 1.17 you can only connect with Minecraft 1.9 or higher, we recommend Minecraft 1.17.1.
What about 1.18 update? 1.18 update will likely happen as an upgrade (not reset) once the 1.18 server is stable enough.