The original "The Aether" mod, rewritten and ported to modern Minecraft versions.
Full Changelog: https://github.com/The-Aether-Team/The-Aether/compare/1.20.4-1.4.0-neoforge...1.20.4-1.4.1-neoforge
Full Changelog: https://github.com/The-Aether-Team/The-Aether/compare/1.20.2-1.3.0-neoforge...1.20.4-1.4.0-neoforge