XL Packets has been updated to 1.18.2 and 1.19.x. Please downloaded the official version instead: https://www.curseforge.com/minecraft/mc-mods/xl-packets
Old Description:
Fixes https://bugs.mojang.com/browse/MC-185901 by increasing the packet size limit from 2MB to 2GB, preventing servers with large datapacks, packets, etc. from kicking the client.
This mod is needed clientside for any connecting clients.
XL Packets Renewed is an updated version of XL Packets (by tfarcenim) for Forge 1.18.x and 1.19.x.
For Fabric, use the latest version of XL Packets Fabric (by tfarcenim)