new

# File activesupport/lib/active_support/deprecation.rb, line 35
    def initialize(deprecation_horizon = '4.2', gem_name = 'Rails')
      self.gem_name = gem_name
      self.deprecation_horizon = deprecation_horizon
      # By default, warnings are not silenced and debugging is off.
      self.silenced = false
      self.debug = false
    end