diff --git a/.github/workflows/moodle-ci.yml b/.github/workflows/moodle-ci.yml
index fc70249..1b322ac 100644
--- a/.github/workflows/moodle-ci.yml
+++ b/.github/workflows/moodle-ci.yml
@@ -4,11 +4,11 @@ on: [push, pull_request]
 
 jobs:
   test:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
 
     services:
       postgres:
-        image: postgres:12.7
+        image: postgres:13
         env:
           POSTGRES_USER: 'postgres'
           POSTGRES_HOST_AUTH_METHOD: 'trust'
@@ -16,7 +16,7 @@ jobs:
           - 5432:5432
         options: --health-cmd pg_isready --health-interval 10s --health-timeout 5s --health-retries 3
       mariadb:
-        image: mariadb:10.5
+        image: mariadb:10.6.7
         env:
           MYSQL_USER: 'root'
           MYSQL_ALLOW_EMPTY_PASSWORD: "true"
@@ -28,36 +28,33 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          - php: '8.0'
+          - php: '8.2'
             moodle-branch: 'master'
             database: 'pgsql'
-          - php: '8.0'
+          - php: '8.3'
             moodle-branch: 'master'
             database: 'mariadb'
+          - php: '8.2'
+            moodle-branch: 'MOODLE_405_STABLE'
+            database: 'mariabd'
+          - php: '8.2'
+            moodle-branch: 'MOODLE_405_STABLE'
+            database: 'pgsql'
+          - php: '8.2'
+            moodle-branch: 'MOODLE_404_STABLE'
+            database: 'mariadb'
+          - php: '8.1'
+            moodle-branch: 'MOODLE_403_STABLE'
+            database: 'pgsql'
           - php: '8.0'
-            moodle-branch: 'MOODLE_401_STABLE'
+            moodle-branch: 'MOODLE_402_STABLE'
             database: 'pgsql'
           - php: '8.0'
-            moodle-branch: 'MOODLE_400_STABLE'
+            moodle-branch: 'MOODLE_402_STABLE'
             database: 'mariadb'
           - php: '8.0'
-            moodle-branch: 'MOODLE_311_STABLE'
-            database: 'pgsql'
-          - php: '7.4'
-            moodle-branch: 'MOODLE_310_STABLE'
-            database: 'pgsql'
-          - php: '7.4'
-            moodle-branch: 'MOODLE_39_STABLE'
-            database: 'pgsql'
-          - php: '7.3'
-            moodle-branch: 'MOODLE_38_STABLE'
-            database: 'pgsql'
-          - php: '7.2'
-            moodle-branch: 'MOODLE_37_STABLE'
+            moodle-branch: 'MOODLE_401_STABLE'
             database: 'pgsql'
-          - php: '7.0'
-            moodle-branch: 'MOODLE_35_STABLE'
-            database: 'mariadb'
 
     steps:
       - name: Check out repository code
diff --git a/classes/privacy/provider.php b/classes/privacy/provider.php
index 137a348..5610ee5 100644
--- a/classes/privacy/provider.php
+++ b/classes/privacy/provider.php
@@ -31,7 +31,6 @@
  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 class provider implements \core_privacy\local\metadata\null_provider {
-
     /**
      * Get the language string identifier with the component's language
      * file to explain why this plugin stores no data.
diff --git a/lib.php b/lib.php
index 2d87ade..c77590c 100644
--- a/lib.php
+++ b/lib.php
@@ -35,10 +35,9 @@ function atto_preview_params_for_js($elementid, $options, $fpoptions) {
     if (!$context) {
         $context = context_system::instance();
     }
-    return array('contextid' => $context->id,
+    return ['contextid' => $context->id,
                  'previewurl' => $CFG->wwwroot . '/lib/editor/atto/plugins/preview/preview.php',
-                 'sesskey' => sesskey());
-
+                 'sesskey' => sesskey()];
 }
 
 /**
@@ -47,6 +46,5 @@ function atto_preview_params_for_js($elementid, $options, $fpoptions) {
 function atto_preview_strings_for_js() {
     global $PAGE;
 
-    $PAGE->requires->strings_for_js(array('pluginname'), 'atto_preview');
+    $PAGE->requires->strings_for_js(['pluginname'], 'atto_preview');
 }
-
diff --git a/preview.php b/preview.php
index a5237f5..3227e5b 100644
--- a/preview.php
+++ b/preview.php
@@ -29,7 +29,7 @@
 
 $PAGE->set_url('/lib/editor/atto/plugins/preview/preview.php');
 
-list($context, $course, $cm) = get_context_info_array($contextid);
+[$context, $course, $cm] = get_context_info_array($contextid);
 $PAGE->set_context($context);
 
 require_login($course, false, $cm);
@@ -42,12 +42,12 @@
 
 // Print dialog link a la book print tool.
 $printtext = get_string('printcontent', 'atto_preview');
-$printicon = $OUTPUT->pix_icon('book', $printtext, 'booktool_print', array('class' => 'icon'));
-$printlinkatt = array('onclick' => 'window.print();return false;', 'class' => 'hidden-print');
-$printbutton = html_writer::link('#', $printicon.$printtext, $printlinkatt);
+$printicon = $OUTPUT->pix_icon('book', $printtext, 'booktool_print', ['class' => 'icon']);
+$printlinkatt = ['onclick' => 'window.print();return false;', 'class' => 'hidden-print'];
+$printbutton = html_writer::link('#', $printicon . $printtext, $printlinkatt);
 
 // Output filtered content.
-$content = format_text($content, FORMAT_HTML, array('context' => $contextid));
+$content = format_text($content, FORMAT_HTML, ['context' => $contextid]);
 $content = preg_replace('/brokenfile.php#/', 'draftfile.php', $content);
 print $printbutton . $OUTPUT->container($content, 'atto-preview-content');
 
diff --git a/settings.php b/settings.php
index 7d55ac7..d3c9ae1 100644
--- a/settings.php
+++ b/settings.php
@@ -31,15 +31,17 @@
     // Create a list of page layouts to be available.
     $name = new lang_string('layout', 'atto_preview');
     $desc = new lang_string('layout_desc', 'atto_preview');
-    $options = array ('embedded' => 'embedded',
+    $options = ['embedded' => 'embedded',
                       'popup' => 'popup',
-                      'print' => 'print');
+                      'print' => 'print'];
     $default = 'print';
 
-    $setting = new admin_setting_configselect('atto_preview/layout',
-                                              $name,
-                                              $desc,
-                                              $default,
-                                              $options);
+    $setting = new admin_setting_configselect(
+        'atto_preview/layout',
+        $name,
+        $desc,
+        $default,
+        $options
+    );
     $settings->add($setting);
 }
diff --git a/version.php b/version.php
index 5b5ff46..1018c79 100644
--- a/version.php
+++ b/version.php
@@ -24,7 +24,7 @@
 
 defined('MOODLE_INTERNAL') || die();
 
-$plugin->version   = 2016021505;        // The current plugin version (Date: YYYYMMDDXX).
+$plugin->version   = 2016021506;        // The current plugin version (Date: YYYYMMDDXX).
 $plugin->requires  = 2018051700;        // Requires this Moodle version.
 $plugin->component = 'atto_preview';  // Full name of the plugin (used for diagnostics).
 $plugin->maturity = MATURITY_STABLE; // Maturity level.