Ruby 1.8.6 Policy
Ruby 1.8.6 is old and it's API is lacking the forward-compatibility that Ruby 1.8.7 has for moving to Ruby 1.9. Since I maintain two large ruby libraries that are shipped in 1.9 (RDoc and RubyGems) it is becoming hard to maintain 1.8.6 support inside them comfortably.
Currently I do not develop against 1.8.6 and correct operation on 1.8.6 is the last thing I investigate before release. Ensuring that my software works well in three versions of Ruby (1.8.6, 1.8.7 and 1.9.1) has become difficult. Supporting it in four once 1.9.2 is out will be too hard.
Ruby 1.8.7 offers many of the features of Ruby 1.9 making support for it fairly easy.
RubyGems 1.4.x will not support Ruby 1.8.6.
The RDoc 2.5.x releases do not guarantee support for Ruby 1.8.6.
Sorry Ruby 1.8.6, it's time to let you go. comments
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