It's updating to 1.14, but should be usable in earlier versions (?).
Sometimes there is some issues with certain blocks like leaves losing transparency or clipping weirdly when you use a texturepack that is way too new for the version of Minecraft. But that's okay! I can just make the modpack for 1.12 or 1.14. Thanks for letting me know!
Heya. When I first discovered this pack, I was hyped to the bone, but I was saddened when I learned that Santiago3 left it. That sadness changed when I read that you have been working to continue what the original creator has started. I was happy to see the progress you've made. I was wondering if I could offer a few contributions to support this group. Similar to a previous member, I have been drawing some sketches on how I envisioned the updated Minecraft versions with The End is Extremely Nigh texture pack and I would like to share these ideas with you. I am also available on Discord if you want to invite me in.
EDIT: I forgot to bring up how I have looked for music/sound effects that could potentially add to the atmosphere of this pack.