This files describes API changes for the core question system. === 2.6 === 1) The method question_behaviour::is_manual_grade_in_range and move and become question_engine::is_manual_grade_in_range. 2) The arguments to core_question_renderer::mark_summary changed from ($qa, $options) to ($qa, $behaviouroutput, $options). If you have overridden that method you will need to update your code. 3) Heading level for number(), add_part_heading() and respond_history() has been lowered by one level. These changes are part of improving the page accessibility and making heading to have proper nesting. (MDL-41615) === Earlier changes === * Were not documented in this way. Sorry.