Why is Ruby 1.9.2 on Windows 7 using a 1.9.1 path for gems? it is using c:/ruby192/lib/ruby/gems/1.9.1/gems/railties-3.0.0/lib/rails/commands.rb

I installed Ruby 1.9.2 using one click installer to c:\ruby192

It doesn't set any path, so I set it to include c:\ruby192 at the very beginning of the path.

But when it error on something (for Rails 3.0), the path says:

[Error message]
c:/ruby192/lib/ruby/gems/1.9.1/gems/railtie开发者_开发技巧s-3.0.0/lib/rails/commands.rb

why is it 1.9.1 gems path for Ruby 1.9.2?

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From a little FAQ chapter to the release:

The standard library is installed in /usr/local/lib/ruby/1.9.1 This version number is "library compatibility version". Ruby 1.9.2 is mostly compatible with the 1.9.2, so its library is installed in the directory.