[Feature]: 1.21.11

[Theslees]

What is the new feature or improvement?

Port to 1.21.11

[pirozokking-oss]

we need this
and when 26.1 releases for it too

[vico93]

Second for 26.1

[ffuentesm]

Especially now that Aether 2 is on 26.1.2, Polymorph would help a lot with the Aether planks/vanilla recipes.