diff --git a/.upgradenotes/MDL-87426-2026012001313723.yml b/.upgradenotes/MDL-87426-2026012001313723.yml
new file mode 100644
index 00000000000..e649062a737
--- /dev/null
+++ b/.upgradenotes/MDL-87426-2026012001313723.yml
@@ -0,0 +1,5 @@
+issueNumber: MDL-87426
+notes:
+  mod_choice:
+    - message: Undo the deletion of public/mod/choice/classes/event/answer_updated.php file.
+      type: changed
diff --git a/public/mod/choice/classes/event/answer_updated.php b/public/mod/choice/classes/event/answer_updated.php
new file mode 100644
index 00000000000..c728a8c30f3
--- /dev/null
+++ b/public/mod/choice/classes/event/answer_updated.php
@@ -0,0 +1,138 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * The mod_choice answer updated event.
+ *
+ * @package    mod_choice
+ * @copyright  2013 Adrian Greeve <adrian@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace mod_choice\event;
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * The mod_choice answer updated event class.
+ *
+ * This event is deprecated in Moodle 3.2, it can no longer be triggered, do not
+ * write event observers for it. This event can only be initiated during
+ * restore from previous Moodle versions and appear in the logs.
+ *
+ * Event observers should listen to mod_choice\event\answer_created and
+ * mod_choice\event\answer_deleted instead, these events will be triggered for
+ * each option that was user has selected or unselected
+ *
+ * @property-read array $other {
+ *      Extra information about event.
+ *
+ *      - int choiceid: id of choice.
+ *      - int optionid: (optional) id of option.
+ * }
+ *
+ * @deprecated since 3.2
+ * @package    mod_choice
+ * @since      Moodle 2.6
+ * @copyright  2013 Adrian Greeve <adrian@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class answer_updated extends \core\event\base {
+
+    /**
+     * Returns description of what happened.
+     *
+     * @return string
+     */
+    public function get_description() {
+        return "The user with id '$this->userid' updated their choice with id '$this->objectid' in the choice activity
+            with course module id '$this->contextinstanceid'.";
+    }
+
+    /**
+     * Return localised event name.
+     *
+     * @return string
+     */
+    public static function get_name() {
+        return get_string('eventanswerupdated', 'mod_choice');
+    }
+
+    /**
+     * Get URL related to the action
+     *
+     * @return \moodle_url
+     */
+    public function get_url() {
+        return new \moodle_url('/mod/choice/view.php', array('id' => $this->contextinstanceid));
+    }
+
+    /**
+     * Init method.
+     *
+     * @return void
+     */
+    protected function init() {
+        // The objecttable here is wrong. We are updating an answer, not a choice activity.
+        // This also makes the description misleading as it states we made a choice with id
+        // '$this->objectid' which just refers to the 'choice' table. The trigger for
+        // this event should be triggered after we update the 'choice_answers' table.
+        $this->data['crud'] = 'u';
+        $this->data['edulevel'] = self::LEVEL_PARTICIPATING;
+        $this->data['objecttable'] = 'choice';
+    }
+
+    /**
+     * Custom validation.
+     *
+     * @throws \coding_exception
+     * @return void
+     */
+    protected function validate_data() {
+        parent::validate_data();
+
+        debugging('Event \\mod_choice\event\\answer_updated should not be used '
+                . 'any more for triggering new events and can only be initiated during restore. '
+                . 'For new events please use \\mod_choice\\event\\answer_created '
+                . 'and  \\mod_choice\\event\\answer_deleted', DEBUG_DEVELOPER);
+
+        if (!isset($this->other['choiceid'])) {
+            throw new \coding_exception('The \'choiceid\' value must be set in other.');
+        }
+    }
+
+    public static function get_objectid_mapping() {
+        return array('db' => 'choice', 'restore' => 'choice');
+    }
+
+    public static function get_other_mapping() {
+        $othermapped = array();
+        $othermapped['choiceid'] = array('db' => 'choice', 'restore' => 'choice');
+
+        // The 'optionid' is being passed as an array, so we can't map it. The event is
+        // triggered each time a choice is answered, where it may be possible to select
+        // multiple choices, so the value is converted to an array, which is then passed
+        // to the event. Ideally this event should be triggered every time we update the
+        // 'choice_answers' table so this will only be an int.
+        $othermapped['optionid'] = \core\event\base::NOT_MAPPED;
+
+        return $othermapped;
+    }
+
+    public static function is_deprecated() {
+        return true;
+    }
+}