Path	Best for
1.21	current maintained branch
1.20.1	deepest in-site coverage
Upgrade	migration and compatibility
Official docs	authoritative references
Third-party docs	direct entry to Course 1.20.1 and XPlus 1.19.2/1.18.2

Layer	Role
in-site docs	curated structure in CrychicDoc
NeoForge topics	collected NeoForge study paths
official references	NeoForged docs, toolchain docs, and NeoGradle plugin docs

1.20.4

Sub-sections

Section	Notes
	Open the landing page for this sub-section

Column	Description
Docs & Info	structure, rules, Q&A, board topics, and module requests
Guide Hubs	community links, tools, and topical gateways