These are the API documents for base classes and modules in the current stable release of Ruby 3.1.2
- 3.1.2 core - Core API docs for Ruby 3.1.2 This is the current official release.
- 3.2.0-preview1 core - Core API docs for Ruby 3.2.0-preview1
- 3.1.1 core - Core API docs for Ruby 3.1.1
- 3.1.0 core - Core API docs for Ruby 3.1.0
- 3.0.4 core - Core API docs for Ruby 3.0.4
- 3.0.3 core - Core API docs for Ruby 3.0.3
- 3.0.2 core - Core API docs for Ruby 3.0.2
- 3.0.1 core - Core API docs for Ruby 3.0.1
- 3.0.0 core - Core API docs for Ruby 3.0.0
- 2.7.6 core - Core API docs for Ruby 2.7.6
- 2.7.5 core - Core API docs for Ruby 2.7.5
- 2.7.4 core - Core API docs for Ruby 2.7.4
- 2.7.3 core - Core API docs for Ruby 2.7.3
- 2.7.2 core - Core API docs for Ruby 2.7.2
- 2.7.1 core - Core API docs for Ruby 2.7.1
- 2.7.0 core - Core API docs for Ruby 2.7.0
- 2.6.10 core - Core API docs for Ruby 2.6.10
- 2.6.9 core - Core API docs for Ruby 2.6.9
- 2.6.8 core - Core API docs for Ruby 2.6.8
- 2.6.7 core - Core API docs for Ruby 2.6.7
- 2.6.6 core - Core API docs for Ruby 2.6.6
- 2.6.5 core - Core API docs for Ruby 2.6.5
- 2.6.4 core - Core API docs for Ruby 2.6.4
- 2.6.3 core - Core API docs for Ruby 2.6.3
- 2.6.2 core - Core API docs for Ruby 2.6.2
- 2.6.1 core - Core API docs for Ruby 2.6.1
- 2.6 core - Core API docs for Ruby 2.6
- 2.5.9 core - Core API docs for Ruby 2.5.9
- 2.5.8 core - Core API docs for Ruby 2.5.8
- 2.5.7 core - Core API docs for Ruby 2.5.7
- 2.5.6 core - Core API docs for Ruby 2.5.6
- 2.5.5 core - Core API docs for Ruby 2.5.5
- 2.5.4 core - Core API docs for Ruby 2.5.4
- 2.5.3 core - Core API docs for Ruby 2.5.3
- 2.5.2 core - Core API docs for Ruby 2.5.2
- 2.5.1 core - Core API docs for Ruby 2.5.1
- 2.5.0 core - Core API docs for Ruby 2.5.0
- 2.4.10 core - Core API docs for Ruby 2.4.10
- 2.4.9 core - Core API docs for Ruby 2.4.9
- 2.4.8 core - Core API docs for Ruby 2.4.8
- 2.4.7 core - Core API docs for Ruby 2.4.7
- 2.4.6 core - Core API docs for Ruby 2.4.6
- 2.4.5 core - Core API docs for Ruby 2.4.5
- 2.4.4 core - Core API docs for Ruby 2.4.4
- 2.4.3 core - Core API docs for Ruby 2.4.3
- 2.4.2 core - Core API docs for Ruby 2.4.2
- 2.4.1 core - Core API docs for Ruby 2.4.1
- 2.4.0 core - Core API docs for Ruby 2.4.0
- 2.3.8 core - Core API docs for Ruby 2.3.8
- 2.3.7 core - Core API docs for Ruby 2.3.7
- 2.3.6 core - Core API docs for Ruby 2.3.6
- 2.3.5 core - Core API docs for Ruby 2.3.5
- 2.3.4 core - Core API docs for Ruby 2.3.4
- 2.3.3 core - Core API docs for Ruby 2.3.3
- 2.3.2 core - Core API docs for Ruby 2.3.2
- 2.3.1 core - Core API docs for Ruby 2.3.1
- 2.3.0 core - Core API docs for Ruby 2.3.0
- 2.2.10 core - Core API docs for Ruby 2.2.10
- 2.2.7 core - Core API docs for Ruby 2.2.7
- 2.2.6 core - Core API docs for Ruby 2.2.6
- 2.2.5 core - Core API docs for Ruby 2.2.5
- 2.2.4 core - Core API docs for Ruby 2.2.4
- 2.2.3 core - Core API docs for Ruby 2.2.3
- 2.2.2 core - Core API docs for Ruby 2.2.2
- 2.2.1 core - Core API docs for Ruby 2.2.1
- 2.2.0 core - Core API docs for Ruby 2.2.0
- 2.1.9 core - Core API docs for Ruby 2.1.9
- 2.1.8 core - Core API docs for Ruby 2.1.8
- 2.1.7 core - Core API docs for Ruby 2.1.7
- 2.1.6 core - Core API docs for Ruby 2.1.6
- 2.1.5 core - Core API docs for Ruby 2.1.5
- 2.1.4 core - Core API docs for Ruby 2.1.4
- 2.1.3 core - Core API docs for Ruby 2.1.3
- 2.1.2 core - Core API docs for Ruby 2.1.2
- 2.1.1 core - Core API docs for Ruby 2.1.1
- 2.1.0 core - Core API docs for Ruby 2.1.0
- 2.0.0 core - Core API docs for Ruby 2.0.0
- 1.9.3 core - Core API docs for Ruby 1.9.3 base classes and modules, such as String, Array, Symbol, etc.
- 1.9 keywords - Keywords defined in 1.9.
- MRuby core - Core API docs for MRuby (this is not an active release version).
- trunk-core - Core API docs for Ruby trunk (not yet officially released)
- 1.9.2 core - Core API docs for Ruby 1.9.2
- 1.9.1 core - Core API docs for Ruby 1.9.1
- 1.8.7 core - Core API docs for Ruby 1.8.7.
- 1.8.6 core - Core API docs for Ruby 1.8.6.