Version 1.7
    – updated data pack version to 88.0 for compatibility with MC 1.21.9 – The Copper Age
    – updated .mcmeta syntax for compatibility with data pack versions 88.0 and above (see snapshot 25w31a for changes)

Version 1.6
    – updated data pack version to 81 for compatibility with MC 1.21.7 and 1.21.8

Version 1.5
    - updated data pack version to 80 for compatibility with MC 1.21.6 - Chase the Skies

Version 1.4
    - updated data pack version to 71 for compatibility with MC 1.21.5 – Spring to Life

Version 1.3 
    - updated .json logic for new version (missed in changelog – my apologies!)

Version 1.2 
    - stable release for MC 1.21.4 – The Garden Releases
    - updated data pack version to 61

Version 1.1
    - updated data pack versions to 57 for stable release for MC 1.21.1 – The Bundles of Bravery Drop

Version 1.0
    - first stable release for Minecraft 1.21

Version 0.3-beta
    - updated to data pack version 48 for compatibility with Minecraft 1.21-pr3
    - added supported format tags for versions 46-48 (inclusive) to allow compatibility from MC 1.21-pr1+

Version 0.2-beta
    - updated to datapack version 47 for compatibility with Minecraft 1.21-pr2

Version 0.1-beta
    - datapack version 46 for compatibility with Minecraft 1.21-pr1
    - creates heavy core duplication recipe using iron blocks, trial keys, and a heavy core