| ⇢ | C | UserManager::getUserListExtraConditions() added | |
| ⇢ | B | UserManager::build_user_extra_file_list() added | |
| ⇢ | A | UserGroup::getUserGroupByCourseWithDataCount() added | |
| ⇢ | A | UserManager::remove_user_extra_file() added | |
| ⇢ | A | UserManager::get_all_extra_field_by_type() added |