Java 16 (and 1.17) is now supported!
There are 2 jars now, use the second (newer) only if you are using latest
1.16 or 1.17 with Java 16!
Read the full changelog here.
Parties 3.1.0:
What is changed?
The command system has been improved with a new configuration and aliases! Support for GriefDefender and some changes/fixes.