I'm sorry for no updates. I'm still working on 2.1.0 update. It's quite big update for me, because it's the start of modular plugin system for legacy versions support(1.12.2 - 1.13.2). I have to test everything - I don't want servers to suffer due to some stupid errors in my code.

As a spoiler for this update
- 1.12-1.15 support
- Mimic - a new mob that will spawn in custom structures
- The Plague - a new mob that will infect you, so you will infect other players
- Major optimization for mobs ticking
- Вetter cave-ins shape

Next planned updates
- Health customization for every mob
- Limit cave-aging if N% of undergrounds is "aged"
- ???