EDIT: For all those tuning into my blog for the first time be sure to check out the Ruby threading bugfix from an earlier post: Ruby Threading Bugfix: Small fix goes a long way In this blog post I’m releasing some patches to MRI Ruby 1.8.7p72 that add heap dumping, object reference finder, stack dumping, object allocation/deallocation tracking, and some more goodies to MRI Ruby 1.8.7p72. These are