Now that your here your going to want to open the file in this pack called pack.mcmeta

From there your going to want to changes the number after pack format with the the number that pairs with the version of minecraft your looking to play.

Which will be listed down below. Save the file and your done! just make sure you download the correct version of optifine for it to work.


The following list what versions each value is associated with:

1 for versions 1.6.1 – 1.8.9
2 for versions 1.9 – 1.10.2
3 for versions 1.11 – 1.12.2
4 for versions 1.13 – 1.14.4
5 for versions 1.15 – 1.16.1
6 for versions 1.16.2 – 1.16.5
7 for versions 1.17+
