History
| Version | Date |
|---|---|
| 1.0 | 02005-12-13December 13, 2005 |
| 1.2 | 02007-01-19January 19, 2007 |
| 2.0 | 02007-12-07December 7, 2007 |
| 2.1 | 02008-06-01June 1, 2008 |
| 2.2 | 02008-11-21November 21, 2008 |
| 2.3 | 02009-03-16March 16, 2009 |
| 3.0 | 02010-08-29August 29, 2010 |
| 3.1 | 02011-08-31August 31, 2011 |
| 3.2 | 02012-01-20January 20, 2012 |
David Heinemeier Hansson extracted Ruby on Rails from his work on Basecamp, a project management tool by 37signals (now a web application company). Hansson first released Rails as open source in July 2004, but did not share commit rights to the project until February 2005. In August 2006, the framework reached a milestone when Apple announced that it would ship Ruby on Rails with Mac OS X v10.5 "Leopard", which was released in October 2007.
Rails version 2.3 was released on March 15, 2009. Major new developments in Rails include templates, engines, Rack and nested model forms. Templates enable the developer to generate a skeleton application with custom gems and configurations. Engines let one reuse application pieces complete with routes, view paths and models. The Rack web server interface and Metal allow one to write optimized pieces of code that route around ActionController.
On December 23, 2008, Merb, another web application framework, was launched, and Ruby on Rails announced it would work with the Merb project to bring "the best ideas of Merb" into Rails 3, ending the "unnecessary duplication" across both communities. Merb was merged with Rails as part of the Rails 3.0 release.
Rails 3.1 was released on August 31, 2011, featuring Reversible Database Migrations, Asset Pipeline, Streaming, jQuery as default Javascript Library and newly introduced CoffeeScript and Sass into the stack
Rails 3.2 was released on January 20, 2012 with performance enhancement for development mode, Faster Routing Engine (as known as journey engine), Automatic Query Explain and Tagged Logging. Rails 3.2.x is the last version that supports Ruby 1.8.7.
Read more about this topic: Ruby On Rails
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