- Added new feature: EXP Gain Multipliers! By setting this in the config/level system configuration, you can adjust whether people should gain extra exp. This is useful for a server-wide exp boost event, where players gain extra exp for a short time.

- There are also per-player gain multipliers, so you can have specific individual players gain exp at a higher or lower rate. Both of these multipliers can be set with commands in-game or by messing with the right config files.

- As a result of this new change, the config has been adjusted. The config should automatically update, but you will have to go and manually remove the exp-multiplier field in your config.yml and levelsystems.yml files as this field has been replaced by the exp-required-multiplier field.

- The plugin is also fully and officially tested to work on 1.20!