Great news for all Ruby implementations around. A project to bring RbYAML up-to-date and perform better has been accepted for Google Summer of Code. Long Sun is the name of the student, and me and Xue Yong Zhi will jointly mentor this effort.
In fact, I'm very excited about this news. RbYAML was an incredibly important piece of the puzzle to get JRuby to finally work with RubyGems, and that kickstarted our possibilities to start testing numerous other applications. I soon ported RbYAML to Java, and created the JvYAML and JvYAMLb projects, to get better efficiency. Sadly, this left RbYAML without any TLC. That changed a while back when Rubinius picked up the project to get their YAML support going, and now that Long Sun will work on it, hopefully we will finally get an extremely compliant and bug free YAML implementation for Ruby.
This will obviously benefit Rubinius, but it will also be very good for both JRuby and IronRuby. The work will be test-driven which means a more complete test suite will be built around YAML in Ruby.
If you're interested in following the project, it's now hosted at Google Code (due to problems with RubyForge from China) at http://code.google.com/p/rbyaml/. Long Sun will also blog about his progress here: http://rbyaml.blogspot.com/.
Exciting news indeed.