This mod provides a config in which one can convert registered IDs.
This mod works with vanilla registries as well as modded registries added through Fabric's registry API. Can be useful for modpacks as mods are often changed.
The config file can be found at ./config/configurabledatafixers.json
The config file will have examples set up for you.
Note: Entries in the config will only convert if the old_id is not found in the game. Ex: If you have old_id set to minecraft:grass_block and new_id set to minecraft:stone, grass blocks will stay the same.