It is planned to drop support for older versions and leave only 1.20+ (or even 1.21+) , as ~97% of users are using version 1.21+
This will improve plugin performance and future features
If you have any concerns, feel free to write!
​

Added option 'async-packets' - if enabled may provide a slight performance boost (not guaranteed no all servers)
Added %required_level% placeholder for spawner modifieres (only works when the required spawner level is greater than 0)
Added options to allow per-mob permissions:
- 'Breaking -> allow-permissions' (spawnerlegacy.breaking.allow.*)
- 'Placing -> allow-permissions' (spawnerlegacy.placing.allow.*)
- 'Stacking -> allow-permissions' (spawnerlegacy.stacking.allow.*)
(detailed information in the configuration file)
Moved some options to a new category (Optimisation)​

Fixed spawn particles causing an error
Fixed spawner placing and breaking permissions not allowing players to place or break spawners​

Implemented methods to spawn stacked entities
Implemented stacked entity states​