Changelog class for per user changes dialog

changelog.rb

class Changelog
  # Put your available versions in the array, in reverse release order, e.g. %w(1.1 1.0 0.9.9999999)
  VERSIONS = %w().freeze

  class << self
    # e.g. Changelog.after('1.0')
    def after(version)
      changes = Changelog.new
      if index = VERSIONS.index(version)
        VERSIONS[0...index].collect {|v| changes[v] }.flatten
      else
        []
      end
    end
  end

  def [](version)
    @all[version]
  end

  def initialize
    @all = {
      # '1.0' => [
      #   'Something hardcore you want others to know',
      # ],
    }
  end
end