Please update it :))))))

(I ask mainly because #25 prevents modpacks that use ThonkUtil from working behind Velocity, and getting players to manually update their clients is a pain)

Same problem here and the curseforge version is the same version from here, it's just not fixed at all, I'm trying to proxy AOF5 but yeah I still have "Client did not understand response query message with channel name thonkutil:universal_packet" and everything, it's really annoying
Well it's not like AOF6 is a thing and slowly becoming more stable and apparently it's fixed in 1.19 but still, 1.18 update would be really appreciated

@SiriusBYT If it helps, here are the relevant files I used to get AOF5 v1.5.1 working under Velocity:
https://mega.nz/folder/0l8lXD7T#G2tc-_nftJUZxN8fqawL6g

I couldn't get AOF5 v2.0.4 working the last time I tried, but I didn't look into it much. Maybe you'll have better luck?

Well nope, no such luck here.
Running on AOF5 2.0.6, Java 19 on ARM Ubuntu Server here, still same error message, pretty sure the only fix is to go ahead and modify the code ourselves or something to fix it
Was worth a shot tho