The update from 1.5.5 to 1.5.6 requires an update of the structure configuration files (This will be done automatically by the plugin so please backup before updating). Please see the migration guide here for more information. Changes:
Changed the system that loot tables use. (This allows the multiple container types without interfering with probability).
Added a system to automatically update to the new config version.
Added the ability to control if the 'SpawnY' should be calculated before or after other conditions.
Add the 'flat_error' mode to the BlockLevelLimit.
Improved the error handling for structures.
Improved the API for loot tables.
Bug Fixes:
Fixed a bug where the plugin would not properly ignore plants and trees.
Fixed a bug where the BlockLevelLimit did not work as intended.
Fixed a bug where the new_chunk limitation did not work as intended.