Moodle 2.0 question type API changes
This is probably incomplete, and will probably change more before Moodle 2.0 is released, but hopefully it is better than nothing.
For the last several versions, we have provided legacy support for question types with language strings in the quiz.php language file. That support is now gone. You should have a proper qtype_xxx.php language file for your question type. Similarly for help files.
As a result, the get_heading method has had its signature changed. MDL-18350.
How the category parameter is passed to save_question
Most question types should not need to override the save_question method, however ... In Moodle 1.9, it was necessary to do complex processing on the combination $form->category and $form->categorymoveto. This is now handled by question/question.php, and save_question need only use the $form->category. (This change was actually in Moodle 1.9.5. )
New question type administration page
The old get_config_options method has been removed. I don't think any question types were using it.
New metadata methods
Most of these you should not have to change, because the base class implementation should be fine. Please read the PHPdoc comments for further details.
- plugin_name - can be used in get_string calls. MDL-18350
- requires_qtypes - used by the qtypes admin screen. MDL-6751
- is_question_manual_graded MDL-8648