| ⇢ | A | ExerciseLib::getCountOfAnswers() added | |
| ⇢ | A | ExerciseLib::getNumberStudentsAnswerHotspotCount() added | |
| ⇢ | A | ExerciseLib::getStudentStatsByQuestion() added | |
| A | ↛ | ExerciseLib::get_number_students_answer_hotspot_co... removed | |
| A | ↛ | ExerciseLib::get_student_stats_by_question() removed |