# Siren 0.2.0 Released

**URL:** <https://www.ruby-forum.com/t/siren-0-2-0-released/171676>\
**Category:** Ruby\
**Created:** [July 7, 2009, 2:51pm UTC](https://www.ruby-forum.com/t/siren-0-2-0-released/171676 "2009-07-07T14:51:21Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![james-calivar](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/2bfe46/32.png) [@james-calivar](https://www.ruby-forum.com/u/james-calivar)\
**Post date:** [July 7, 2009, 2:51pm UTC](https://www.ruby-forum.com/t/siren-0-2-0-released/171676/1 "2009-07-07T14:51:21Z")

</div>

siren version 0.2.0 has been released!

- [http://github.com/jcoglan/siren](http://github.com/jcoglan/siren)

Siren is a JSON and JSONQuery interpreter for Ruby. It extends the  
normal  
functionality  
of JSON-to-Ruby processing with cross-references, automatic typecasting,  
and a succinct query language for filtering JSON and Ruby object graphs.

I began this about six months ago mostly to help me learn Treetop, but  
Rails  
Tips recently  
featured it in an article on testing so I’ve completed the JSONQuery  
implementation and  
released it to Rubyforge.

Changes:

### 0.2.0 / 2009-07-07

- Mostly complete implementation of JSONQuery as described  
by SitePen. This would have been 0.1 but it supercedes  
John’s version.