From: David Palm <dvdplm@...>
Date: 2009-05-04T23:22:01+09:00
Subject: String#hash changed in Ruby 1.9?

Hi all,
in ruby 1.8.7:
david@trince ~$ ruby -e 'puts "abc".hash'
833038373
david@trince ~$ ruby -e 'puts "abc".hash'
833038373
david@trince ~$ ruby -e 'puts "abc".hash'
833038373

[always the same number]

in ruby 1.9.1:
david@trince ~$ ruby -e 'puts "abc".hash'
402929305
david@trince ~$ ruby -e 'puts "abc".hash'
-403532784
david@trince ~$ ruby -e 'puts "abc".hash'
-650364342

What happened? Is this intentional? Rationale? Any tips on how to replace it?