From: Eric Hodel <redmine@...>
Date: 2010-08-10T09:58:20+09:00
Subject: [ruby-core:31659] [Bug #3671] DateTime dumped by Marshal from ruby 1.8 cannot be loaded by ruby 1.9

Bug #3671: DateTime dumped by Marshal from ruby 1.8 cannot be loaded by ruby 1.9
http://redmine.ruby-lang.org/issues/show/3671

Author: Eric Hodel
Status: Open, Priority: Normal
Category: lib
ruby -v: ruby 1.9.3dev (2010-07-07 trunk 28561) [x86_64-darwin10.4.0]

$ ruby -rdate -e 'Marshal.dump DateTime.now, $stdout' | ruby19 -rdate -e 'p Marshal.load $stdin.read'
-e:1:in `load': class DateTime needs to have method `_load' (TypeError)
	from -e:1:in `<main>'

$ ruby -v
ruby 1.8.7 (2009-06-12 patchlevel 174) [universal-darwin10.0]
$ ruby19 -v
ruby 1.9.3dev (2010-07-07 trunk 28561) [x86_64-darwin10.4.0]

Ruby 1.9 should implement DateTime._load in order to load from older versions


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