2.2.2 (wasn't posted to spigot):
Attempted to fix a use item desync
Re-enable an optimization for collisions to reduce the amount of blocks collided upon up by around 40% or so
Don't relocate adventure in an attempt to fix some PacketEvents issues
Don't re-encode packets to try and fix issue with players having high latency
Fixed placing blocks on top of lectern false
Updated PacketEvents to fix compatibility with NachoSpigot

2.2.3:
Fix an issue on pre-1.13 servers when right clicking near a wall on a 1.13+ client
Fix an issue where an exception would be thrown on pre-1.13 servers with vines
Fix/hack around an issue where an exception would be thrown when opening some inventories on pre-1.14
Added a fastmath handler for 1.7 fastmath
Fixed a setback issue where every flag after the first would result in a setback, this took over a week for anyone to notice
Add a config to by default kick players who haven't responded to transaction in over 2 minutes, to stop a memory leak