Redmine 3.4.4

db/migrate/065_add_settings_updated_on.rb

@@ -0,0 +1,11 @@
+class AddSettingsUpdatedOn < ActiveRecord::Migration
+  def self.up
+    add_column :settings, :updated_on, :timestamp
+    # set updated_on
+    Setting.all.each(&:save)
+  end
+
+  def self.down
+    remove_column :settings, :updated_on
+  end
+end