See the Installation page for details on building Ruby from source. If you have an issue compiling Ruby, consider using one of the third party tools mentioned above.

The Koans walk you along the path to enlightenment in order to learn Ruby. The goal is to learn the Ruby language, syntax, structure, and some common functions and libraries.

In the Playground you can try any Ruby code you like. The Official Ruby documentation is included.

Ruby Documentation Welcome to the official Ruby programming language documentation. Getting Started New to Ruby? Start with our Getting Started Guide. Core Classes and …

Identical regexp can or cannot run in linear time depending on your ruby binary. Neither forward nor backward compatibility is guaranteed about the return value of this method.

Oct 2, 2005 · If you have found an issue that affects a specific Ruby community’s gem, follow the instructions on RubyGems.org. To get in touch with the security team directly outside of …

Miniruby is a version of Ruby which has no external dependencies and lacks certain features. It can be useful in Ruby development because it allows for faster build times.

Ruby code can raise exceptions. Most often, a raised exception is meant to alert the running program that an unusual (i.e., exceptional) situation has arisen, and may need to be handled.

Mar 26, 2025 · Please see the GitHub releases for further details. This version is a last version of normal maintenance for Ruby 3.2 series. We will fix only security issues for Ruby 3.2 series …

Formats for Dates and Times Several Ruby time-related classes have instance method strftime, which returns a formatted string representing all or part of a date or time: Date#strftime. …