LagMap
LagMap throughout 1.8-1.15 was hard to implement without breaking support to the newer versions. We've found a solution for that and managed to solve issues with the lag map once and for all!

Persistent StatsBar
Keep your stats bar on even if you leave your server. The new stats bar system should remove the bother from having to re-activate the stats bar each time you leave and re-join.
The info is not persistent after restarts.

Mob Stacker XP
Stacked mobs would previously not drop XP when killed by an entity, which has now been solved.