Links - Documentation & Other...
Ruby Documentation
- ruby-lang.org EN - RDoc
- ruby-lang.org JA
- ruby-doc.org - RDoc
- ruby-lang.org trunk EN - RDoc - shows all Core and std-lib classes & methods together, as if one required all of the std-lib
- ruby-doc.org trunk - RDoc - shows std-lib separate from Core
- RubyDoc.info - YARD
- RubyGems Command Reference
Ruby Downloads
Note that the site is available in several other languages.
Rails
- RubyOnRails.org Main
- RubyOnRails.org Guides - available for multiple Rails versions
Rails Documentation
- RubyOnRails.org API master (edge) - RDoc - master branch
- RubyOnRails.org API current gem - RDoc
- RubyDoc.info v4.1.7 - YARD
- RubyDoc.info v4.0.0 - YARD