"The Hidden Year", an adventurous add-on package for Minecraft, is provided under the MIT open source license. It has begun to take shape. With continuous updates, it will gradually become a highly playable add-on package/module. Currently the latest version of this mod is 1.13.2, which only supports Bedrock Edition 1.20.0+
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Ore can be generated in 1.20.30 again, provided that you install the feature repair package that comes with the update.