press releases

Engine Yard Applauds Release of JRuby 1.5

Community-Driven Contributions Exceed 1,000 Commits From Over 30 Open Source Developers

SAN FRANCISCO, May 12, 2010 – Engine Yard, the leading Platform-as-a-Service for Ruby on Rails, today celebrated the availability of JRuby 1.5. JRuby is a popular open source package that allows Java developers to use Ruby to expand the capabilities of Java applications, provide SOA/WOA interfaces for existing Java applications, or create entirely new applications. Ruby continues to gain adoption in the enterprise market because it offers significant productivity gains. The latest release makes it easier than ever for Java developers to take Ruby for a spin because of the seamless interaction it allows with commonly used Java components.

"With JRuby, we can accelerate development by 4-10x while writing 80% less code. The true cost of software is in testing and code maintenance, and JRuby allows more thorough testing which helps to keep maintenance costs down," said Joe O'Brien, Co-founder of EdgeCase, LLC. "In addition, we lowered our costs for engineering resources on one project by 50% and reduced the time required for deploying code changes from 6-8 weeks to 3 weeks. These productivity gains give us more time to build new applications."

Engine Yard has a special interest in JRuby because three of the projects four core contributors work at Engine Yard, including Thomas Enebo, Charlie Nutter, and Nick Sieger. The company also congratulates the entire community of JRuby contributors, over 30 developers contributed more than 1,000 individual commits that comprise JRuby 1.5. Key features in JRuby 1.5 include:

  • Tighter Java Library Integration – JRuby 1.5 delivers more efficient memory and CPU usage enables faster development cycles
  • Improved Ruby Compatibility – JRuby 1.5 is the most Ruby-compatible release yet, which means developers can feel confident their Ruby code will 'just work' on JRuby
  • Improved Windows Support – JRuby 1.5 eliminates dozens of challenges to running JRuby on Windows, so Windows developers interested in Ruby can select JRuby with greater confidence

JRuby provides unique productivity benefits to Java teams including the ability to deploy Ruby code to the same servers, use the same libraries, and integrate with existing Java code and applications that they are familiar with. For a full description of all the improvements and bug fixes in JRuby 1.5, or to download JRuby, visit:

"This was our most ambitious development cycle yet—but with the fantastic support of JRuby contributors and the Java and Ruby communities—we've made JRuby 1.5 a release everyone deserves to be proud of," said Charles Nutter, lead JRuby developer and co-lead of the JRuby core team at Engine Yard.

JRuby Commercial Support

Engine Yard also recently announced the industry's first JRuby commercial support offering, which includes JRuby 1.5. Commercial JRuby support from Engine Yard includes developer assistance and advice on how to tune and optimize JRuby. It covers the most recent version of JRuby and the following libraries: jruby-openssl, activerecord-jdbc-adapter, warbler, jruby-rack. It also covers bundled JRuby components such as Joni, Yecht, and jrubyffi. More information on Engine Yard commercial JRuby support is available at:

About Engine Yard

Engine Yard is the leading provider of automation technologies and services for Ruby on Rails, including the Engine Yard Cloud, a Platform-as-a-Service (PaaS) for web developers and web teams. It provides easy-to-use, automated Rails application deployment and management, with a design philosophy that allows easy migration of existing applications. Engine Yard helps development teams realize productivity gains and cost savings by eliminating the operational overhead caused by application deployment issues and managing complex infrastructures. A significant contributor to the advancement of Open Source projects, Engine Yard employs top industry experts and sponsors or directly contributes to many projects such as Ruby on Rails, JRuby and Rubinius Headquartered in San Francisco, Calif., Engine Yard is backed by Benchmark Capital, New Enterprise Associates, and

Media Contact

Sabrina Cook Horn Group for Engine Yard 415.905.4013

Media Contact

Theresa Maloney
Cogenta Communications for Engine Yard

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