The first RC for JRuby 1.6 is out and brings improved Ruby 1.9.2 compatibility, experimental C extensions support, improved Windows support, Ruby Gems Maven support, performance and profiling improvements and more. InfoQ talked to JRuby's Charles Nutter about JRuby 1.6, the impact of Java 7 on JRuby, new language features in Ruby and much more.
Mobile Ruby developers get a new version of Rhodes: the 2.0 release brings many new features, and also puts the framework under the MIT license. іPhone developers will be glad to hear Rhodes apps are being accepted into the AppStore. Also: Android developers and users can use JRuby with Ruboto and Ruboto-IRB.
JRuby on Google App Engine has come a long way, recently with improvements in JRuby 1.5.1. Also: work on native extension support in Ruby Summer of Code.
When Oracle released its GlassFish roadmap, a notable absence was the GlassFish gem. This gem-based server for Rails, Merb, and Sinatra applications has become a common deployment option for the JRuby platform and has been widely recommended to the JRuby community. The gem allows Rails users running in multithreaded mode to take advantage of the JVM by running multiple threads per server instance.
With its upcoming 1.5 release, anticipated at the end of April, the JRuby project is continuing to improve interoperability between Java and Ruby by providing integration with Maven, Ant and Rake. Ruby developers will be able to take greater advantage of strengths of the Java platform, while Java developers will find more reasons to mix Ruby tools into their existing projects.
Engine Yard, the employer of most of JRuby's core team, started offering commercial support for JRuby this week.
JRuby-Prof is a new, low overhead profiler for JRuby which, unlike plain Java profilers, will generate clear, Ruby-specific reports. A new feature in JRuby is JRuby::Synchronized, a module that, when extended, will make all methods of a class synchronized.
The first beta of Rails 3 is available. Rails 3 is a major rewrite of the codebase bringing with it stable APIs and design decisions inspired by Merb, cleaner internals, performance improvements and much more. InfoQ takes a look at the changes in Rails 3, and on which Ruby implementations it runs.
SapphireSteel Software, the developers of the Visual Studio based Ruby in Steel IDE have just released version 1.5. Among many improvements, they also dropped support for IronRuby.
JRuby's Charles Nutter is making Maven artifacts installable as RubyGems. An alternative to using Maven is JavaGems, built on RubyGems, Bundler and Gemcutter to make it easier to install libraries for Scala, Clojure and other JVM languages. Also, JRuby gets the ability to generate real Java classes.
A new intermediate representation (IR) for JRuby code enables many optimizations and could bring the next performance boost. InfoQ talked to Subbu Sastry who works on the IR.
Charles Nutter talks about his two new languages for the JVM: Duby and its dynamic cousin Surinx.
The final release of JRuby 1.4 is now available, with many performance, Java integration and other improvements. It also adds a native launcher for Windows, which works around some problems with the BAT-based launcher. Also: the Hpricot 0.8.2 release fixes problems with Hpricot on JRuby.
NewRelic just released RPM 2, the latest version of their performance monitoring software. RPM, which is available as SaaS (Software as a Service) now supports monitoring Java web/JEE applications as well as Ruby on Rails applications. We talked to NewRelic's Lew Cirne about the new release.