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deprecation_management

🚨 Manage and Route Deprecation Warnings​

ActiveSupport::Deprecation lets you control how deprecation notices are handled—log, stderr, notify, or raise. You can subscribe to the deprecation.rails event to forward warnings to an external monitoring service and enforce cleanup policies.

# config/initializers/deprecation.rb
ActiveSupport::Deprecation.behavior = [:stderr, :log]

ActiveSupport::Notifications.subscribe('deprecation.rails') do |_name, _start, _finish, _id, payload|
  Rails.logger.warn("DEPRECATION: #{payload[:message]} (called from #{payload[:callstack].first})")
  MyErrorTracker.notify(:warning, payload[:message])
end