From: Jeremy Kemper Date: 2012-04-27T09:52:56+09:00 Subject: [ruby-core:44669] Re: possible YAML bug in ruby 1.9.3p125? On Thu, Apr 26, 2012 at 5:09 PM, Young Hyun wrote: > YAML in ruby 1.9.3p125 seems to have a bug reading in YAML from older Ruby versions. �Specifically, YAML in 1.9.3p125 mis-parses text like "123_456" as a number (just as in Ruby) rather than as a string, which appears to be the correct behavior according to the YAML specification. Psych (yaml in 1.9.3) is correctly parsing 123_456 as a String. Syck (yaml in 1.8) took some liberties with the yaml spec :)