I am happy to announce that the ClownerCraft Network now supports Minecraft client versions 1.8.8 through 1.18.
We’d still recommend using 1.17.1 for the best experience, as this is what our sandbox servers run on.
You can however now join the server with the new 1.18 client, just remember that any new gameplay features will not be available. 

We still have no ETA on the full 1.18 update, thanks for your patience.
~Clowner