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.