Gemified in 2.3

The following libraries were made standard gems with Ruby 2.3.0

New Default Gems

New Default Gem Description Resources
json c Support for JSON (JavaScript Object Notation) RubyGems · GitHub · RDoc · CRuby

New Bundled Gems

New Bundled Gem Description Resources
did_you_mean Patches error messages to suggest correct spelling of methods/classes/variables RubyGems · GitHub · RDoc
net-telnet Support for Telnet RubyGems · GitHub · RDoc
rake A Ruby task runner, inspired by make RubyGems · GitHub · RDoc

More Standard Gems