diff --git a/course/lib.php b/course/lib.php
index 25af452c7fa..52432a46bb3 100644
--- a/course/lib.php
+++ b/course/lib.php
@@ -2201,7 +2201,8 @@ function move_courses($courseids, $categoryid) {
             'objectid' => $course->id,
             'context' => context_course::instance($course->id),
             'other' => array('shortname' => $dbcourse->shortname,
-                             'fullname' => $dbcourse->fullname)
+                             'fullname' => $dbcourse->fullname,
+                             'updatedfields' => array('category' => $category->id))
         ));
         $event->set_legacy_logdata(array($course->id, 'course', 'move', 'edit.php?id=' . $course->id, $course->id));
         $event->trigger();
@@ -2513,8 +2514,6 @@ function create_course($data, $editoroptions = NULL) {
 function update_course($data, $editoroptions = NULL) {
     global $DB, $CFG;
 
-    $data->timemodified = time();
-
     // Prevent changes on front page course.
     if ($data->id == SITEID) {
         throw new moodle_exception('invalidcourse', 'error');
@@ -2523,6 +2522,28 @@ function update_course($data, $editoroptions = NULL) {
     $oldcourse = course_get_format($data->id)->get_course();
     $context   = context_course::instance($oldcourse->id);
 
+    // Capture the updated fields for the log data.
+    $updatedfields = [];
+    foreach (get_object_vars($oldcourse) as $field => $value) {
+        if ($field == 'summary_editor') {
+            if (($data->$field)['text'] !== $value['text']) {
+                // The summary might be very long, we don't wan't to fill up the log record with the full text.
+                $updatedfields[$field] = '(updated)';
+            }
+        } else if ($field == 'tags') {
+            // Tags might not have the same array keys, just check the values.
+            if (array_values($data->$field) !== array_values($value)) {
+                $updatedfields[$field] = $data->$field;
+            }
+        } else {
+            if (isset($data->$field) && $data->$field != $value) {
+                $updatedfields[$field] = $data->$field;
+            }
+        }
+    }
+
+    $data->timemodified = time();
+
     if ($editoroptions) {
         $data = file_postupdate_standard_editor($data, 'summary', $editoroptions, $context, 'course', 'summary', 0);
     }
@@ -2629,7 +2650,8 @@ function update_course($data, $editoroptions = NULL) {
         'objectid' => $course->id,
         'context' => context_course::instance($course->id),
         'other' => array('shortname' => $course->shortname,
-                         'fullname' => $course->fullname)
+                         'fullname' => $course->fullname,
+                         'updatedfields' => $updatedfields)
     ));
 
     $event->set_legacy_logdata(array($course->id, 'course', 'update', 'edit.php?id=' . $course->id, $course->id));
diff --git a/course/tests/courselib_test.php b/course/tests/courselib_test.php
index 8cd7d25a87c..7e82c061cdb 100644
--- a/course/tests/courselib_test.php
+++ b/course/tests/courselib_test.php
@@ -1800,6 +1800,39 @@ class core_course_courselib_testcase extends advanced_testcase {
         $this->assertEventContextNotUsed($event);
     }
 
+    /**
+     * Test that triggering a course_updated event logs changes.
+     */
+    public function test_course_updated_event_with_changes() {
+        global $DB;
+
+        $this->resetAfterTest();
+
+        // Create a course.
+        $course = $this->getDataGenerator()->create_course((object)['visible' => 1]);
+
+        $editedcourse = $DB->get_record('course', ['id' => $course->id]);
+        $editedcourse->visible = 0;
+
+        // Update course and catch course_updated event.
+        $sink = $this->redirectEvents();
+        update_course($editedcourse);
+        $events = $sink->get_events();
+        $sink->close();
+
+        $event = array_shift($events);
+        $this->assertInstanceOf('\core\event\course_updated', $event);
+        $otherdata = [
+            'shortname' => $course->shortname,
+            'fullname' => $course->fullname,
+            'updatedfields' => [
+                'visible' => 0
+            ]
+        ];
+        $this->assertEquals($otherdata, $event->other);
+
+    }
+
     /**
      * Test that triggering a course_deleted event works as expected.
      */
diff --git a/lib/classes/event/course_updated.php b/lib/classes/event/course_updated.php
index fab46c534e9..2c9e59d42ce 100644
--- a/lib/classes/event/course_updated.php
+++ b/lib/classes/event/course_updated.php
@@ -34,6 +34,7 @@ defined('MOODLE_INTERNAL') || die();
  *
  *      - string shortname: (optional) shortname of course.
  *      - string fullname: (optional) fullname of course.
+ *      - string updatedfields: (optional) array of course table fields edited in this event, ['fieldname' => 'newvalue']
  * }
  *
  * @package    core