diff --git a/.github/workflows/moodle-ci.yml b/.github/workflows/moodle-ci.yml
index 1ffa225b21e..ff58505766d 100644
--- a/.github/workflows/moodle-ci.yml
+++ b/.github/workflows/moodle-ci.yml
@@ -114,7 +114,7 @@ jobs:
     steps:
       - name: Start MariaDB
         if: matrix.database == 'mariadb'
-        run: docker run -p 3306:3306 -e MYSQL_USER=root -e MYSQL_ALLOW_EMPTY_PASSWORD=true -d mariadb:10
+        run: docker run -p 3306:3306 -e MYSQL_USER=root -e MYSQL_ALLOW_EMPTY_PASSWORD=true -d mariadb:10.5
 
       - name: Start PostgreSQL
         if: matrix.database == 'pgsql'
diff --git a/classes/event/rating_created.php b/classes/event/rating_created.php
index 4e918e9aeeb..d96a91321ae 100644
--- a/classes/event/rating_created.php
+++ b/classes/event/rating_created.php
@@ -63,4 +63,4 @@ public function get_description() {
     public static function get_name() {
         return get_string('eventratingcreated', 'mod_moodleoverflow');
     }
-}
\ No newline at end of file
+}
diff --git a/classes/event/rating_deleted.php b/classes/event/rating_deleted.php
index 209cf35b104..1d1fa070e65 100644
--- a/classes/event/rating_deleted.php
+++ b/classes/event/rating_deleted.php
@@ -63,4 +63,4 @@ public function get_description() {
     public static function get_name() {
         return get_string('eventratingdeleted', 'mod_moodleoverflow');
     }
-}
\ No newline at end of file
+}
diff --git a/classes/event/rating_updated.php b/classes/event/rating_updated.php
index 6b3901ee47f..bf0673f79f3 100644
--- a/classes/event/rating_updated.php
+++ b/classes/event/rating_updated.php
@@ -63,4 +63,4 @@ public function get_description() {
     public static function get_name() {
         return get_string('eventratingupdated', 'mod_moodleoverflow');
     }
-}
\ No newline at end of file
+}
diff --git a/classes/observer.php b/classes/observer.php
index 199cf027f2a..26948f67c30 100644
--- a/classes/observer.php
+++ b/classes/observer.php
@@ -141,4 +141,4 @@ public static function course_module_created(\core\event\course_module_created $
             moodleoverflow_instance_created($event->get_context(), $moodleoverflow);
         }
     }
-}
\ No newline at end of file
+}
diff --git a/classes/privacy/data_export_helper.php b/classes/privacy/data_export_helper.php
index 271496a059a..d6314a30bd4 100644
--- a/classes/privacy/data_export_helper.php
+++ b/classes/privacy/data_export_helper.php
@@ -498,4 +498,4 @@ public static function get_subcontext($discussion = null, $post = null) {
         }
         return $subcontext;
     }
-}
\ No newline at end of file
+}
diff --git a/classes/readtracking.php b/classes/readtracking.php
index 8bedfe8946f..8b67e39be1a 100644
--- a/classes/readtracking.php
+++ b/classes/readtracking.php
@@ -565,4 +565,4 @@ public static function moodleoverflow_count_unread_posts_course($userid, $course
         // Else return nothing.
         return array();
     }
-}
\ No newline at end of file
+}
diff --git a/classes/subscriptions.php b/classes/subscriptions.php
index 349cec5d3db..4231c4ed4a9 100644
--- a/classes/subscriptions.php
+++ b/classes/subscriptions.php
@@ -1081,4 +1081,4 @@ public static function get_discussion_subscription_icon($moodleoverflow, $discus
 
         return \html_writer::link($subscriptionlink, $output, $array);
     }
-}
\ No newline at end of file
+}
diff --git a/db/events.php b/db/events.php
index fb23de721ef..a5d05d3463e 100644
--- a/db/events.php
+++ b/db/events.php
@@ -44,4 +44,4 @@
         'callback'  => 'mod_moodleoverflow_observer::course_module_created',
     ),
 
-);
\ No newline at end of file
+);
diff --git a/db/messages.php b/db/messages.php
index adb9f3a540e..c03df6a673a 100644
--- a/db/messages.php
+++ b/db/messages.php
@@ -28,4 +28,4 @@
 
     // Ordinary single moodleoverflow posts.
     'posts' => array(),
-);
\ No newline at end of file
+);
diff --git a/db/services.php b/db/services.php
index 2061917cbf2..7bcba3e5eba 100644
--- a/db/services.php
+++ b/db/services.php
@@ -34,4 +34,4 @@
         'ajax'         => true,
         'capabilities' => 'mod/moodleoverflow:ratepost'
     )
-);
\ No newline at end of file
+);
diff --git a/db/upgrade.php b/db/upgrade.php
index a7b54be1255..e33cb2fe2a0 100644
--- a/db/upgrade.php
+++ b/db/upgrade.php
@@ -94,8 +94,6 @@ function xmldb_moodleoverflow_upgrade($oldversion) {
         $table->add_field('moodleoverflowid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0');
         $table->add_field('userid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0');
         $table->add_field('grade', XMLDB_TYPE_FLOAT, '10', null, XMLDB_NOTNULL, null, '0');
-        $table->add_field('late', XMLDB_TYPE_INTEGER, '3', null, XMLDB_NOTNULL, null, '0');
-        $table->add_field('completed', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0');
 
         // Adding keys to table moodleoverflow_grades.
         $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
@@ -155,5 +153,24 @@ function xmldb_moodleoverflow_upgrade($oldversion) {
         upgrade_mod_savepoint(true, 2021060800, 'moodleoverflow');
     }
 
+    if ($oldversion < 2021072700) {
+        // Define fields late and completed to be dropped from moodleoverflow_grades.
+        $table = new xmldb_table('moodleoverflow_grades');
+
+        $field = new xmldb_field('late');
+        // Conditionally launch drop field late.
+        if ($dbman->field_exists($table, $field)) {
+            $dbman->drop_field($table, $field);
+        }
+
+        $field = new xmldb_field('completed');
+        // Conditionally launch drop field completed.
+        if ($dbman->field_exists($table, $field)) {
+            $dbman->drop_field($table, $field);
+        }
+
+        upgrade_mod_savepoint(true, 2021072700, 'moodleoverflow');
+    }
+
     return true;
-}
\ No newline at end of file
+}
diff --git a/discussion.php b/discussion.php
index 1c814d75113..fbb22b423ab 100644
--- a/discussion.php
+++ b/discussion.php
@@ -159,4 +159,4 @@
 
 moodleoverflow_print_discussion($course, $cm, $moodleoverflow, $discussion, $post, $canreply);
 
-echo $OUTPUT->footer();
\ No newline at end of file
+echo $OUTPUT->footer();
diff --git a/index.php b/index.php
index 445d34d7eaf..ad494c22ab3 100644
--- a/index.php
+++ b/index.php
@@ -390,4 +390,4 @@
 }
 
 // Print the pages footer.
-echo $OUTPUT->footer();
\ No newline at end of file
+echo $OUTPUT->footer();
diff --git a/locallib.php b/locallib.php
index 8a5671b21c9..33bb760f318 100644
--- a/locallib.php
+++ b/locallib.php
@@ -1901,8 +1901,6 @@ function moodleoverflow_update_user_grade_on_db($moodleoverflow, $postuserrating
         $gradedataobject->moodleoverflowid = $moodleoverflow->id;
         $gradedataobject->userid = $userid;
         $gradedataobject->grade = $grade;
-        $gradedataobject->late = 0;
-        $gradedataobject->completed = 0;
         $DB->insert_record('moodleoverflow_grades', $gradedataobject, false);
     }
 
diff --git a/markposts.php b/markposts.php
index 376645cff9b..e56ce3bb627 100644
--- a/markposts.php
+++ b/markposts.php
@@ -142,4 +142,4 @@
     // Redirect the user back to the view.php.
     redirect(moodleoverflow_go_back_to($returnto), $message, null, $status);
     exit;
-}
\ No newline at end of file
+}
diff --git a/post.php b/post.php
index bd22209343c..08804cfc12b 100644
--- a/post.php
+++ b/post.php
@@ -763,4 +763,4 @@
 $mformpost->display();
 
 // Display the footer.
-echo $OUTPUT->footer();
\ No newline at end of file
+echo $OUTPUT->footer();
diff --git a/renderer.php b/renderer.php
index 6a953be58b3..b05569a3d13 100644
--- a/renderer.php
+++ b/renderer.php
@@ -102,4 +102,4 @@ public function render_moodleoverflow_email(\mod_moodleoverflow\output\moodleove
     public function moodleoverflow_email_template() {
         return null;
     }
-}
\ No newline at end of file
+}
diff --git a/settings.php b/settings.php
index 0c0710c3e29..f51f296c035 100644
--- a/settings.php
+++ b/settings.php
@@ -112,4 +112,4 @@
         $setting->set_updatedcallback('moodleoverflow_update_all_grades');
     }
 
-}
\ No newline at end of file
+}
diff --git a/subscribe.php b/subscribe.php
index 4772dad12e2..cc1617dd454 100644
--- a/subscribe.php
+++ b/subscribe.php
@@ -333,4 +333,4 @@
         redirect($returnto, get_string('discussionnowsubscribed', 'moodleoverflow', $info), null, $notify['success']);
         exit;
     }
-}
\ No newline at end of file
+}
diff --git a/tests/privacy_provider_test.php b/tests/privacy_provider_test.php
index 6907576df7f..2b8bf369775 100644
--- a/tests/privacy_provider_test.php
+++ b/tests/privacy_provider_test.php
@@ -1459,4 +1459,4 @@ public function test_grades() {
                 'userid, grade');
         self::assertEmpty($grades);
     }
-}
\ No newline at end of file
+}
diff --git a/tests/readtracking_test.php b/tests/readtracking_test.php
index 5da8937c18f..ea979137cf7 100644
--- a/tests/readtracking_test.php
+++ b/tests/readtracking_test.php
@@ -159,4 +159,4 @@ public function test_moodleoverflow_is_tracked() {
         $result = \mod_moodleoverflow\readtracking::moodleoverflow_is_tracked($mooptional);
         $this->assertEquals(false, $result);
     }
-}
\ No newline at end of file
+}
diff --git a/tests/subscriptions_test.php b/tests/subscriptions_test.php
index 82325c7f9c3..341e96635f2 100644
--- a/tests/subscriptions_test.php
+++ b/tests/subscriptions_test.php
@@ -1458,4 +1458,4 @@ public function test_is_subscribable_loggedin($options, $expect) {
 
         $this->assertEquals($expect, \mod_moodleoverflow\subscriptions::is_subscribable($moodleoverflow));
     }
-}
\ No newline at end of file
+}
diff --git a/tracking.php b/tracking.php
index f56fe1dd6eb..64dcb17f9c4 100644
--- a/tracking.php
+++ b/tracking.php
@@ -121,4 +121,4 @@
         // Print an error message.
         print_error('cannottrack', 'moodleoverflow', get_local_referer(false));
     }
-}
\ No newline at end of file
+}
diff --git a/version.php b/version.php
index b180510332a..7dde56bd8a2 100644
--- a/version.php
+++ b/version.php
@@ -28,7 +28,7 @@
 defined('MOODLE_INTERNAL') || die();
 
 $plugin->component = 'mod_moodleoverflow';
-$plugin->version = 2021060800;
+$plugin->version = 2021072700;
 $plugin->release = 'v3.11-r1';
 $plugin->requires = 2018051703;
 $plugin->maturity = MATURITY_STABLE;