Aptana released RadRails 1.0, an Eclipse-based IDE for Rails and Ruby development.
JRuby core developer Charles Nutter introduces a version of Ruby that uses type inference to help the compiler attain better performance. Nutter's experimental language is called Duby, and its performance using primitive types compares to that of Java.
Zed Shaw, creator of the Mongrel HTTP daemon, explains how the decision to use any language, including Ruby, depends on the appropriateness to task and the amount of yak shaving necessary. He lists 7 plusses and 6 minuses of using Ruby for enterprise computing tasks.
The second release candidate of JRuby 1.1 was made available last week, containing over 260 improvements from the previous version, including a large I/O refactoring and memory improvements for just-in-time compiled methods.
JRuby on Rails solves many of the deployment and scaling problems pure Ruby-based Rails applications may encounter. Sun's Uma Sabada provides a straightforward tutorial on how to deploy a Rails application on Sun's Java application server, using JRuby and the Goldspike plugin.
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