8.4.1

Seems to work but please report any bugs you find but I've only done limited testing.

If you use plain BungeeCord instead of Waterfall, you need the -bungeecord JAR. (or switch to Waterfall - plugins are 100% compatible but it has extra features).

If you use an unusual (for MC servers) OS or CPU architecture (Linux MUSL/32-bit ARM/PPC/MacOS/BSD/Android), download the -fat JAR - I removed those native libraries because it reduced JAR size by 71% (14.59 -> 4.2 MB). In case you don't know what that is or means, you probably don't need this.

8.4

I changed a ton of stuff compared to upstream. Seemed to work at a glance but I've done very limited testing.
If you use an unusual server OS/arch (like Linux with MUSL or 32-bit ARM) you should rebuild this because I removed those native libs - it halved JAR size.