Support for the Ruby 2.4 series has ended. See here for reference.
![show/hide quicksearch [+]](../../images/find.png)
Represents an installed gem. This is used for dependency resolution.
Installed sources sort before all other sources
 
               # File rubygems/source/installed.rb, line 14
def <=> other
  case other
  when Gem::Source::Git,
       Gem::Source::Lock,
       Gem::Source::Vendor then
    -1
  when Gem::Source::Installed then
    0
  when Gem::Source then
    1
  else
    nil
  end
end