Upgradable Backpack

• Fixed: Custom blocks can't be opened in caves.
• Improved: Dropped-type custom blocks can be created when there are no other items dropped within a 1-block range, instead of 5.
• Simplified: Removed the credit link display.
• Custom Craft Version: 5 (compatible with the same version)

change the item base of the GUI item of the working table to a clay ball, which means you need to change a new resource pack if you want to play this version.
If you are the old player in v9 and you don't play my other data packs, nothing will change if you upgrade to v9.1.
If you want to play my other data packs, you need to upgrade to v9.1 for the compatibility of my other data packs because they share the same resource pack.
the resource pack is at the dependencies

Update to 1.20.1, May work in 1.19.* ~ 1.17.*
Need to install Optifine 1.20.1
Don't need Custom Craft like v8.* any more.

Update to 1.20.1, May work in 1.19.* ~ 1.17.*
There is a resource pack needed to install.
Need to install Optifine 1.20.1
Don't need Custom Craft like v8.* any more.

This is the version that I beautify the GUI, the armor texture (backpack on your back). I add the texture of the largest backpack. This datapack works only when installing Custom Craft v3.1 or above.