diff --git a/lib/db/upgrade.php b/lib/db/upgrade.php
index 33f888b9f6c..c67eb530610 100644
--- a/lib/db/upgrade.php
+++ b/lib/db/upgrade.php
@@ -3268,12 +3268,12 @@ privatefiles,moodle|/user/files.php';
         upgrade_main_savepoint(true, 2023042400.03);
     }
 
-    if ($oldversion < 2023042401.08) {
+    if ($oldversion < 2023042401.09) {
         // Upgrade yaml mime type for existing yaml and yml files.
-        $filetypes = array(
+        $filetypes = [
             '%.yaml' => 'application/yaml',
             '%.yml' => 'application/yaml,'
-        );
+        ];
 
         $select = $DB->sql_like('filename', '?', false);
         foreach ($filetypes as $extension => $mimetype) {
@@ -3282,12 +3282,12 @@ privatefiles,moodle|/user/files.php';
                 'mimetype',
                 $mimetype,
                 $select,
-                array($extension)
+                [$extension]
             );
         }
 
         // Main savepoint reached.
-        upgrade_main_savepoint(true, 2023042401.08);
+        upgrade_main_savepoint(true, 2023042401.09);
     }
 
     return true;
diff --git a/version.php b/version.php
index fa75df29b03..0551cb65246 100644
--- a/version.php
+++ b/version.php
@@ -29,7 +29,7 @@
 
 defined('MOODLE_INTERNAL') || die();
 
-$version  = 2023042401.08;              // 20230424      = branching date YYYYMMDD - do not modify!
+$version  = 2023042401.09;              // 20230424      = branching date YYYYMMDD - do not modify!
                                         //         RR    = release increments - 00 in DEV branches.
                                         //           .XX = incremental changes.
 $release  = '4.2.1+ (Build: 20230728)'; // Human-friendly version name