OO-4068 the QTI 1.2 editor was already disabled. With Release 15.0 the next step follows:
- The execution of QTI 1.2 questions in tests shall be disabled
- The import of QTI 1.2 question items and tests is not supported anymore
- A flag in "olat.local.properties" can reactivate the functions, but it's discouraged.
The conversion of QTI 1.2 question items and tests to QTI 2.1 shall still be possible.
In addition prevent the import and execution of QTI 1.2 questionnaires.