This files describes API changes for question type plugins.
+=== 2.3.5 / 2.4.2 / 2.5 ===
+
+* The special value question_attempt::PARAM_CLEANHTML_FILES that could be used
+ in the get_expected_data method was renamed to question_attempt::PARAM_RAW_FILES
+ in order to fix a bug. We failed to think this throught, and so did not realised
+ that this might break some question types. If this affected your question type,
+ please accept our apologies. Details in MDL-37847.
+
+
=== 2.3 ===
* Support for backwards-compatible string names dropped. MDL-30120. (See under 2.2 below.)
