diff --git a/question/bank/columnsortorder/tests/column_manager_test.php b/question/bank/columnsortorder/tests/column_manager_test.php
index 4c71365ce6a..16fafd1dbc3 100644
--- a/question/bank/columnsortorder/tests/column_manager_test.php
+++ b/question/bank/columnsortorder/tests/column_manager_test.php
@@ -40,6 +40,19 @@ require_once($CFG->dirroot . '/question/classes/external.php');
  */
 class column_manager_test extends advanced_testcase {
 
+
+    /** @var \stdClass course record. */
+    protected $course;
+
+    /** @var \core_question\local\bank\view  */
+    protected $questionbank;
+
+    /** @var array  */
+    protected $columns;
+
+    /** @var \qbank_columnsortorder\column_manager  */
+    protected $columnmanager;
+
     /**
      * Setup testcase.
      */
diff --git a/question/bank/customfields/backup/moodle2/restore_qbank_customfields_plugin.class.php b/question/bank/customfields/backup/moodle2/restore_qbank_customfields_plugin.class.php
index 1e0de7eb207..a085ef18954 100644
--- a/question/bank/customfields/backup/moodle2/restore_qbank_customfields_plugin.class.php
+++ b/question/bank/customfields/backup/moodle2/restore_qbank_customfields_plugin.class.php
@@ -24,6 +24,9 @@
  */
 class restore_qbank_customfields_plugin extends restore_qbank_plugin {
 
+    /** @var stdClass|null a fieldset object. */
+    protected $cachedcategory;
+
     /**
      * Returns the paths to be handled by the plugin at question level.
      *
diff --git a/question/bank/editquestion/tests/external/update_question_version_status_test.php b/question/bank/editquestion/tests/external/update_question_version_status_test.php
index 873cff6ac1a..13baf228de0 100644
--- a/question/bank/editquestion/tests/external/update_question_version_status_test.php
+++ b/question/bank/editquestion/tests/external/update_question_version_status_test.php
@@ -32,6 +32,12 @@ use qbank_editquestion\external\update_question_version_status;
  */
 class update_question_version_status_test extends \advanced_testcase {
 
+    /** @var \stdClass course record. */
+    protected $course;
+
+    /** @var mixed. */
+    protected $user;
+
     /**
      * Called before every test.
      */
diff --git a/question/bank/managecategories/category.php b/question/bank/managecategories/category.php
index ade905f02ec..1ab08d264f2 100644
--- a/question/bank/managecategories/category.php
+++ b/question/bank/managecategories/category.php
@@ -112,11 +112,11 @@ if ($param->delete) {
     // Second pass, if we still have questions to move, setup the form.
     if ($questionstomove) {
         $categorycontext = context::instance_by_id($category->contextid);
-        $qcobject->moveform = new question_move_form($thispageurl,
+        $moveform = new question_move_form($thispageurl,
             ['contexts' => [$categorycontext], 'currentcat' => $param->delete]);
-        if ($qcobject->moveform->is_cancelled()) {
+        if ($moveform->is_cancelled()) {
             redirect($thispageurl);
-        } else if ($formdata = $qcobject->moveform->get_data()) {
+        } else if ($formdata = $moveform->get_data()) {
             list($tocategoryid, $tocontextid) = explode(',', $formdata->category);
             $qcobject->move_questions_and_delete_category($formdata->delete, $tocategoryid);
             $thispageurl->remove_params('cat', 'category');
@@ -171,7 +171,11 @@ if ($param->edit !== null || $qcobject->catform->is_submitted()) {
     // In this case, category id is in the 'id' hidden filed.
     $qcobject->edit_single_category($param->edit ?? required_param('id', PARAM_INT));
 } else if ($questionstomove) {
-    $qcobject->display_move_form($questionstomove, $category);
+    $vars = new stdClass();
+    $vars->name = $category->name;
+    $vars->count = $questionstomove;
+    echo $OUTPUT->box(get_string('categorymove', 'question', $vars), 'generalbox boxaligncenter');
+    $moveform->display();
 } else {
     // Display the user interface.
     $qcobject->display_user_interface();
diff --git a/question/bank/managecategories/classes/question_category_object.php b/question/bank/managecategories/classes/question_category_object.php
index 98f8c769bac..2837486023e 100644
--- a/question/bank/managecategories/classes/question_category_object.php
+++ b/question/bank/managecategories/classes/question_category_object.php
@@ -306,8 +306,14 @@ class question_category_object {
      * @param int $questionsincategory
      * @param object $category
      * @throws \coding_exception
+     *
+     * @deprecated No longer used by internal code and not recommended since Moodle 4.2 MDL-77299.
      */
     public function display_move_form($questionsincategory, $category): void {
+        debugging(
+            'display_move_form() is deprecated and no longer used by internal code.',
+            DEBUG_DEVELOPER
+        );
         global $OUTPUT;
         $vars = new stdClass();
         $vars->name = $category->name;
diff --git a/question/bank/tagquestion/tests/external/submit_tags_test.php b/question/bank/tagquestion/tests/external/submit_tags_test.php
index f4d5602abe0..0d31bc2e0f7 100644
--- a/question/bank/tagquestion/tests/external/submit_tags_test.php
+++ b/question/bank/tagquestion/tests/external/submit_tags_test.php
@@ -31,6 +31,15 @@ require_once($CFG->dirroot . '/webservice/tests/helpers.php');
  */
 class submit_tags_test extends \externallib_advanced_testcase {
 
+    /** @var \stdClass course record. */
+    protected $course;
+
+    /** @var \stdClass user record. */
+    protected $student;
+
+    /** @var \stdClass user role record. */
+    protected $studentrole;
+
     /**
      * Set up for every test
      */
diff --git a/question/classes/bank/search/category_condition.php b/question/classes/bank/search/category_condition.php
index 319905ce3b6..5af6f5074f1 100644
--- a/question/classes/bank/search/category_condition.php
+++ b/question/classes/bank/search/category_condition.php
@@ -59,6 +59,9 @@ class category_condition extends condition {
     /** @var int The maximum displayed length of the category info. */
     protected $maxinfolength;
 
+    /** @var \moodle_url The URL the form is submitted to. */
+    protected $baseurl;
+
     /**
      * Constructor
      * @param string     $cat           categoryID,contextID as used with question_bank_view->display()
diff --git a/question/classes/bank/search/tag_condition.php b/question/classes/bank/search/tag_condition.php
index 521553ba18e..89453b894a6 100644
--- a/question/classes/bank/search/tag_condition.php
+++ b/question/classes/bank/search/tag_condition.php
@@ -35,7 +35,10 @@ class tag_condition extends condition {
     /** @var string SQL fragment to add to the where clause. */
     protected $where;
 
-    /** @var string SQL fragment to add to the where clause. */
+    /** @var array Named SQL params to be used with the SQL WHERE snippet. */
+    protected $params;
+
+    /** @var array List of contexts to show tags from. */
     protected $contexts;
 
     /** @var array List of IDs for tags that have been selected in the form. */
diff --git a/question/engine/questionattemptstep.php b/question/engine/questionattemptstep.php
index f7e3f936d9f..781aeb053dd 100644
--- a/question/engine/questionattemptstep.php
+++ b/question/engine/questionattemptstep.php
@@ -647,12 +647,12 @@ class question_attempt_step_subquestion_adapter extends question_attempt_step {
 
     /**
      * Constructor.
-     * @param question_attempt_step $realqas the step to wrap. (Can be null if you
+     * @param question_attempt_step $realstep the step to wrap. (Can be null if you
      *      just want to call add/remove.prefix.)
      * @param string $extraprefix the extra prefix that is used for date fields.
      */
-    public function __construct($realqas, $extraprefix) {
-        $this->realqas = $realqas;
+    public function __construct($realstep, $extraprefix) {
+        $this->realstep = $realstep;
         $this->extraprefix = $extraprefix;
     }
 
@@ -704,7 +704,7 @@ class question_attempt_step_subquestion_adapter extends question_attempt_step {
     }
 
     public function get_state() {
-        return $this->realqas->get_state();
+        return $this->realstep->get_state();
     }
 
     public function set_state($state) {
@@ -712,7 +712,7 @@ class question_attempt_step_subquestion_adapter extends question_attempt_step {
     }
 
     public function get_fraction() {
-        return $this->realqas->get_fraction();
+        return $this->realstep->get_fraction();
     }
 
     public function set_fraction($fraction) {
@@ -720,51 +720,51 @@ class question_attempt_step_subquestion_adapter extends question_attempt_step {
     }
 
     public function get_user_id() {
-        return $this->realqas->get_user_id();
+        return $this->realstep->get_user_id();
     }
 
     public function get_timecreated() {
-        return $this->realqas->get_timecreated();
+        return $this->realstep->get_timecreated();
     }
 
     public function has_qt_var($name) {
-        return $this->realqas->has_qt_var($this->add_prefix($name));
+        return $this->realstep->has_qt_var($this->add_prefix($name));
     }
 
     public function get_qt_var($name) {
-        return $this->realqas->get_qt_var($this->add_prefix($name));
+        return $this->realstep->get_qt_var($this->add_prefix($name));
     }
 
     public function set_qt_var($name, $value) {
-        $this->realqas->set_qt_var($this->add_prefix($name), $value);
+        $this->realstep->set_qt_var($this->add_prefix($name), $value);
     }
 
     public function get_qt_data() {
-        return $this->filter_array($this->realqas->get_qt_data());
+        return $this->filter_array($this->realstep->get_qt_data());
     }
 
     public function has_behaviour_var($name) {
-        return $this->realqas->has_behaviour_var($this->add_prefix($name));
+        return $this->realstep->has_behaviour_var($this->add_prefix($name));
     }
 
     public function get_behaviour_var($name) {
-        return $this->realqas->get_behaviour_var($this->add_prefix($name));
+        return $this->realstep->get_behaviour_var($this->add_prefix($name));
     }
 
     public function set_behaviour_var($name, $value) {
-        return $this->realqas->set_behaviour_var($this->add_prefix($name), $value);
+        return $this->realstep->set_behaviour_var($this->add_prefix($name), $value);
     }
 
     public function get_behaviour_data() {
-        return $this->filter_array($this->realqas->get_behaviour_data());
+        return $this->filter_array($this->realstep->get_behaviour_data());
     }
 
     public function get_submitted_data() {
-        return $this->filter_array($this->realqas->get_submitted_data());
+        return $this->filter_array($this->realstep->get_submitted_data());
     }
 
     public function get_all_data() {
-        return $this->filter_array($this->realqas->get_all_data());
+        return $this->filter_array($this->realstep->get_all_data());
     }
 
     public function get_qt_files($name, $contextid) {
diff --git a/question/engine/tests/questionattempt_test.php b/question/engine/tests/questionattempt_test.php
index 13b11e45785..fe1397fec54 100644
--- a/question/engine/tests/questionattempt_test.php
+++ b/question/engine/tests/questionattempt_test.php
@@ -52,12 +52,6 @@ class questionattempt_test extends \advanced_testcase {
         $this->qa = new question_attempt($this->question, $this->usageid);
     }
 
-    protected function tearDown(): void {
-        $this->question = null;
-        $this->useageid = null;
-        $this->qa = null;
-    }
-
     public function test_constructor_sets_maxmark() {
         $qa = new question_attempt($this->question, $this->usageid);
         $this->assertSame($this->question, $qa->get_question(false));
diff --git a/question/engine/upgrade/behaviourconverters.php b/question/engine/upgrade/behaviourconverters.php
index c6bffa0afbe..632278ed103 100644
--- a/question/engine/upgrade/behaviourconverters.php
+++ b/question/engine/upgrade/behaviourconverters.php
@@ -66,6 +66,8 @@ abstract class question_behaviour_attempt_updater {
     protected $qsession;
     /** @var array the question states for the session to be upgraded. */
     protected $qstates;
+    /** @var stdClass */
+    protected $startstate;
 
     /**
      * @var int counts the question_steps as they are converted to
@@ -336,6 +338,7 @@ abstract class question_behaviour_attempt_updater {
 
 
 class qbehaviour_deferredfeedback_converter extends question_behaviour_attempt_updater {
+
     protected function behaviour_name() {
         return 'deferredfeedback';
     }
@@ -398,6 +401,7 @@ class qbehaviour_manualgraded_converter extends question_behaviour_attempt_updat
 
 
 class qbehaviour_informationitem_converter extends question_behaviour_attempt_updater {
+
     protected function behaviour_name() {
         return 'informationitem';
     }
diff --git a/question/engine/upgrade/upgradelib.php b/question/engine/upgrade/upgradelib.php
index 82eb82e03c3..09b3488be1d 100644
--- a/question/engine/upgrade/upgradelib.php
+++ b/question/engine/upgrade/upgradelib.php
@@ -45,6 +45,8 @@ class question_engine_attempt_upgrader {
     protected $questionloader;
     /** @var question_engine_assumption_logger */
     protected $logger;
+    /** @var stdClass */
+    protected $qsession;
 
     public function save_usage($preferredbehaviour, $attempt, $qas, $quizlayout) {
         global $OUTPUT;
@@ -280,6 +282,9 @@ class question_engine_upgrade_question_loader {
     protected $cache = array();
     protected $datasetcache = array();
 
+    /** @var base_logger */
+    protected $logger;
+
     public function __construct($logger) {
         $this->logger = $logger;
     }
diff --git a/question/format.php b/question/format.php
index 620fc55f411..ad7d4132ec8 100644
--- a/question/format.php
+++ b/question/format.php
@@ -54,6 +54,8 @@ class qformat_default {
     protected $importcontext = null;
     /** @var bool $displayprogress Whether to display progress. */
     public $displayprogress = true;
+    /** @var context[] */
+    public $contexts;
 
     // functions to indicate import/export functionality
     // override to return true if implemented
@@ -166,7 +168,7 @@ class qformat_default {
 
     /**
      * set an array of contexts.
-     * @param array $contexts Moodle course variable
+     * @param context[] $contexts
      */
     public function setContexts($contexts) {
         $this->contexts = $contexts;
diff --git a/question/format/blackboard_six/format.php b/question/format/blackboard_six/format.php
index b7a926c8bc6..0d8afcf4fb0 100644
--- a/question/format/blackboard_six/format.php
+++ b/question/format/blackboard_six/format.php
@@ -57,6 +57,8 @@ class qformat_blackboard_six extends qformat_blackboard_six_base {
     const FILETYPE_QTI = 1;
     /** @var int Blackboard question pool files were previously handled by the blackboard plugin. */
     const FILETYPE_POOL = 2;
+    /** @var string temporary directory/folder.  */
+    public $temp_dir;
 
     /**
      * Return the content of a file given by its path in the tempdir directory.
diff --git a/question/tests/externallib_test.php b/question/tests/externallib_test.php
index f81f2d18504..45b3decde68 100644
--- a/question/tests/externallib_test.php
+++ b/question/tests/externallib_test.php
@@ -38,6 +38,15 @@ require_once($CFG->dirroot . '/question/engine/tests/helpers.php');
  */
 class externallib_test extends externallib_advanced_testcase {
 
+    /** @var \stdClass course record. */
+    protected $course;
+
+    /** @var \stdClass user record. */
+    protected $student;
+
+    /** @var \stdClass user role record. */
+    protected $studentrole;
+
     /**
      * Set up for every test
      */
diff --git a/question/type/calculated/question.php b/question/type/calculated/question.php
index 5e6d2e10d23..3857afb6a4c 100644
--- a/question/type/calculated/question.php
+++ b/question/type/calculated/question.php
@@ -311,7 +311,6 @@ class qtype_calculated_variable_substituter {
 
         // Prepare an array for {@link substitute_values()}.
         $this->search = array();
-        $this->replace = array();
         foreach ($values as $name => $value) {
             if (!is_numeric($value)) {
                 $a = new stdClass();
diff --git a/question/type/calculatedmulti/edit_calculatedmulti_form.php b/question/type/calculatedmulti/edit_calculatedmulti_form.php
index 98f836456e8..010729a14e2 100644
--- a/question/type/calculatedmulti/edit_calculatedmulti_form.php
+++ b/question/type/calculatedmulti/edit_calculatedmulti_form.php
@@ -131,12 +131,11 @@ class qtype_calculatedmulti_edit_form extends question_edit_form {
         $addfieldsname = 'updatecategory';
         $addstring = get_string('updatecategory', 'qtype_calculated');
         $mform->registerNoSubmitButton($addfieldsname);
-        $this->editasmultichoice = 1;
 
         $mform->insertElementBefore(
                 $mform->createElement('submit', $addfieldsname, $addstring), 'listcategory');
         $mform->registerNoSubmitButton('createoptionbutton');
-        $mform->addElement('hidden', 'multichoice', $this->editasmultichoice);
+        $mform->addElement('hidden', 'multichoice', 1);
         $mform->setType('multichoice', PARAM_INT);
 
         $menu = array(get_string('answersingleno', 'qtype_multichoice'),
diff --git a/question/type/calculatedsimple/edit_calculatedsimple_form.php b/question/type/calculatedsimple/edit_calculatedsimple_form.php
index 7af36e2d43d..499f3de20f1 100644
--- a/question/type/calculatedsimple/edit_calculatedsimple_form.php
+++ b/question/type/calculatedsimple/edit_calculatedsimple_form.php
@@ -317,7 +317,6 @@ class qtype_calculatedsimple_edit_form extends qtype_calculated_edit_form {
                 get_string('findwildcards', 'qtype_calculatedsimple'));
         $mform->registerNoSubmitButton('analyzequestion');
         $mform->closeHeaderBefore('analyzequestion');
-        $this->wizarddisplay = optional_param('analyzequestion', false, PARAM_BOOL);
         if ($this->maxnumber != -1) {
             $this->noofitems = $this->maxnumber;
         } else {
diff --git a/question/type/ddimageortext/question.php b/question/type/ddimageortext/question.php
index 94c2f861b55..f2839f7a389 100644
--- a/question/type/ddimageortext/question.php
+++ b/question/type/ddimageortext/question.php
@@ -119,6 +119,9 @@ class qtype_ddimageortext_drop_zone {
     /** @var array X and Y location of the drop zone */
     public $xy;
 
+    /** @var string field name to use */
+    public $fieldname;
+
     /**
      * Create a drop zone object.
      *
diff --git a/question/type/ddimageortext/rendererbase.php b/question/type/ddimageortext/rendererbase.php
index 3187b279318..987b1f40623 100644
--- a/question/type/ddimageortext/rendererbase.php
+++ b/question/type/ddimageortext/rendererbase.php
@@ -108,7 +108,6 @@ class qtype_ddtoimage_renderer_base extends qtype_with_combined_feedback_rendere
             list($fieldname, $html) = $this->hidden_field_for_qt_var($qa, $varname, null,
                     ['placeinput', 'place' . $placeno, 'group' . $place->group]);
             $output .= $html;
-            $question->places[$placeno]->fieldname = $fieldname;
         }
 
         $output .= html_writer::end_div();
diff --git a/question/type/essay/tests/question_test.php b/question/type/essay/tests/question_test.php
index c9d582df97f..1e79abf54f5 100644
--- a/question/type/essay/tests/question_test.php
+++ b/question/type/essay/tests/question_test.php
@@ -280,9 +280,9 @@ class question_test extends \advanced_testcase {
 
         // Test the case in which we're in "no inline response" mode,
         // in which the response is not required (as it's not provided).
-        $essay->reponserequired = 0;
+        $essay->responserequired = 0;
         $essay->responseformat = 'noinline';
-        $essay->attachmensrequired = 1;
+        $essay->attachmentsrequired = 1;
 
         $this->assertFalse($essay->is_complete_response(
                 array()));
@@ -294,7 +294,7 @@ class question_test extends \advanced_testcase {
                 array('attachments' => $attachments[1])));
 
         // Ensure that responserequired is ignored when we're in inline response mode.
-        $essay->reponserequired = 1;
+        $essay->responserequired = 1;
         $this->assertTrue($essay->is_complete_response(
                 array('attachments' => $attachments[1])));
     }
diff --git a/question/type/match/tests/question_test.php b/question/type/match/tests/question_test.php
index 65296420f8a..4068c11659f 100644
--- a/question/type/match/tests/question_test.php
+++ b/question/type/match/tests/question_test.php
@@ -191,7 +191,7 @@ class question_test extends \advanced_testcase {
 
         $match = \test_question_maker::make_question('match');
         unset($match->stems[4]);
-        unset($match->stemsformat[4]);
+        unset($match->stemformat[4]);
         unset($match->right[4]);
         $match->apply_attempt_state($firststep);
 
@@ -212,7 +212,7 @@ class question_test extends \advanced_testcase {
 
         $match = \test_question_maker::make_question('match');
         $match->stems[5] = "Snake";
-        $match->stemsformat[5] = FORMAT_HTML;
+        $match->stemformat[5] = FORMAT_HTML;
         $match->choices[5] = "Reptile";
         $match->right[5] = 5;
         $match->apply_attempt_state($firststep);
diff --git a/question/type/multianswer/edit_multianswer_form.php b/question/type/multianswer/edit_multianswer_form.php
index 0ace56a9f14..a192637c8d5 100644
--- a/question/type/multianswer/edit_multianswer_form.php
+++ b/question/type/multianswer/edit_multianswer_form.php
@@ -58,7 +58,10 @@ class qtype_multianswer_edit_form extends question_edit_form {
     public $reload = false;
     /** @var qtype_numerical_answer_processor used when validating numerical answers. */
     protected $ap = null;
-
+    /** @var bool */
+    public $regenerate;
+    /** @var array */
+    public $editas;
 
     public function __construct($submiturl, $question, $category, $contexts, $formeditable = true) {
         $this->regenerate = true;
diff --git a/question/type/multianswer/tests/helper.php b/question/type/multianswer/tests/helper.php
index 9c6e2d2595d..27ab5d6e301 100644
--- a/question/type/multianswer/tests/helper.php
+++ b/question/type/multianswer/tests/helper.php
@@ -428,7 +428,6 @@ class qtype_multianswer_test_helper extends question_test_helper {
         $mc->shuffleanswers = 0;
         $mc->answernumbering = 'none';
         $mc->layout = qtype_multichoice_base::LAYOUT_VERTICAL;
-        $mc->single = 0;
 
         $mc->answers = array(
             16 => new question_answer(16, 'Apple', 0.3333333,
@@ -461,7 +460,6 @@ class qtype_multianswer_test_helper extends question_test_helper {
         $mc2->shuffleanswers = 0;
         $mc2->answernumbering = 'none';
         $mc2->layout = qtype_multichoice_base::LAYOUT_VERTICAL;
-        $mc2->single = 0;
 
         $mc2->answers = array(
             22 => new question_answer(22, 'Raddish', 0.5,
diff --git a/question/type/questiontypebase.php b/question/type/questiontypebase.php
index c0328ec0227..6dddf15db74 100644
--- a/question/type/questiontypebase.php
+++ b/question/type/questiontypebase.php
@@ -1405,7 +1405,7 @@ class question_type {
 
         $question = new stdClass();
         $question->courseid = $courseid;
-        $question->qtype = $this->qtype;
+        $question->qtype = $this->name();
         return array($form, $question);
     }
 
diff --git a/question/type/randomsamatch/db/upgradelib.php b/question/type/randomsamatch/db/upgradelib.php
index f896c058efb..941e1a6da7b 100644
--- a/question/type/randomsamatch/db/upgradelib.php
+++ b/question/type/randomsamatch/db/upgradelib.php
@@ -52,6 +52,8 @@ class qtype_randomsamatch_qe2_attempt_updater extends question_qtype_attempt_upd
     protected $choiceorder;
     /** @var array flipped version of the choiceorder array. */
     protected $flippedchoiceorder;
+    /** @var array of right answer for each stem. */
+    protected $rightanswer;
 
     public function question_summary() {
         return ''; // Done later, after we know which shortanswer questions are used.
diff --git a/question/upgrade.txt b/question/upgrade.txt
index 9881c3d79f1..808662bcfdd 100644
--- a/question/upgrade.txt
+++ b/question/upgrade.txt
@@ -5,6 +5,28 @@ This files describes API changes for code that uses the question API.
 1) The question/qengine.js has been deprecated. We create core_question/question_engine
    and core/scroll_manager to replace it.
 
+2) For properties that were previously only declared dynamically, a few classes now include property declarations to support PHP 8.2.
+   The affected classes are:
+   * restore_qbank_customfields_plugin
+   * category_condition
+   * tag_condition
+   * question_behaviour_attempt_updater
+   * question_engine_attempt_upgrader
+   * qformat_blackboard_six
+   * qtype_multianswer_edit_form
+   * qtype_ddimageortext_drop_zone
+   * qtype_randomsamatch_qe2_attempt_updater
+   * qformat_default
+
+   Some existing code and variables must be removed while working on this issue, including:
+   * Removed $replace in class qtype_calculated_variable_substituter
+   * Removed $wizarddisplay qtype_calculatedsimple_edit_form::definition_inner()
+   * Removed '$question->places[$placeno]->fieldname = $fieldname' in qtype_ddtoimage_renderer_base::formulation_and_controls()
+   * Removed $mc->single in qtype_multianswer_test_helper::make_multianswer_question_multiple()
+
+3) display_move_form() in qbank_managecategories\question_category_object class is deprecated and moved the logic to
+   the question/bank/managecategories/category.php.
+
 === 4.1 ===
 
 1) get_bulk_action_key() in core_question\local\bank\bulk_action_base class is deprecated and renamed to get_key().