Board Thread:M.U.G.E.N Discussion/@comment-27059826-20180404202813/@comment-3495717-20180404224956

That's the plan, but they're version-specific categories and are intended for use on the new "content version" articles, not the old "everything is clumped all under one page" articles.

Context: a few years back I proposed a change to article layouts where instead of everything being documented under one page, content versions would get their own subpages (for stages, the subpages are redirects that contain those categories, since stage versions on their own wouldn't feature enough content to warrant their own individual articles), but naturally the majority of our articles still use the old layout, which we don't use the version-specific categories on.