This version of the plugin supports 1.16.3-1.20.1. No more updates are to be expected for these versions
Pending bug #2 is NOT fixed in this release. You will have to use 5.0.0 which supports latest minor versions of all major versions (ie., 1.16.5, 1.17.1, 1.18.2, 1.19.4) and all minor versions of latest major version (ie., 1.20.0, 1.20.1, 1.20.2, 1.20.3/4)
Changes Backported from 5.0.0:
NEW COMMAND! /whereami - permission node `playerbiomes.command.whereami`. Description: Displays the name of the biome the player is currently in.