Please make sure to check your config.yml after you update ItemsAdder because the resourcepack part is reverted to default. You will have to set the URL (and port if needed) back to your values in order to make it work.

New
- compatibility with 1.17.1 datapack for negative heights: https://www.planetminecraft.com/data-pack/caves-amp-cliffs-expansion-pack-20w20a-compatible/


- added auto-external-host feature in config.yml. This feature allows you to auto upload the resourcepack to a very fast private resourcepacks hosting repository for free!
Read here for more information: http://a.devs.beer/3t3qc



- added a new property "enabled" to the minecraft_lang_overwrite options to allow you to disable/enable this kind of configurations without deleting them completely.
- added biomes info in worlds_populators, trees_populators, surface_populators


- updated the online IDE with latest attributes from 2.4.8-2.4.9 https://ide.devs.beer/itemsadder/

Config changes
- changed config.yml section about hosting
- changed language files "biome:" string, please delete it.
- added options to ia_gui.yml file

Fixes
- optimized font_images loading
- fixed pack.mcmeta version (red background)
- fixed chat compatibility with worldguard and similar plugins
- fixed Can't replace REAL_NOTE blocks using replace_block action
- fixed memory leaks about world generators registration