diff --git a/changelog.txt b/changelog.txt
index d6e87be..f64798d 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -1,3 +1,8 @@
+= v22.07.01 (2022-07-15) =
+- Fixed: Plugin:cleanuppost() -> Invalid index for trashbin.
+- Fixed: MoCache() -> Add $entries, $headers properties to avoid warning on get_translations_for_domain.
+- Updated: Symfony component -> symfony/var-exporter.
+
 = v21.08.11 (2022-05-30) =
 - Fixed: Avoid calling Filesystem::close_buffer() if a process involved accessing a disk.
 - Fixed: Removed handling stale cache on shutdown.
diff --git a/dist/docket-cache.zip b/dist/docket-cache.zip
index 9a11e8d..c14b3ea 100644
Binary files a/dist/docket-cache.zip and b/dist/docket-cache.zip differ
diff --git a/docket-cache.php b/docket-cache.php
index f868baf..9395220 100644
--- a/docket-cache.php
+++ b/docket-cache.php
@@ -12,8 +12,8 @@
  * @wordpress-plugin
  * Plugin Name:         Docket Cache
  * Plugin URI:          https://docketcache.com/?utm_source=wp-plugins&utm_campaign=plugin-uri&utm_medium=wp-dash
- * Version:             21.08.11
- * VerPrev:             21.08.10
+ * Version:             22.07.01
+ * VerPrev:             21.08.11
  * Description:         A persistent object cache stored as a plain PHP code, accelerates caching with OPcache backend.
  * GitHub Plugin URI:   https://github.com/nawawi/docket-cache
  * Author:              Nawawi Jamili
diff --git a/includes/object-cache.php b/includes/object-cache.php
index 2d0d4b7..48ca42d 100644
--- a/includes/object-cache.php
+++ b/includes/object-cache.php
@@ -3,7 +3,7 @@
  * @wordpress-plugin
  * Plugin Name:         Docket Cache Drop-in
  * Plugin URI:          https://wordpress.org/plugins/docket-cache/
- * Version:             21.08.11
+ * Version:             22.07.01
  * Description:         A persistent object cache stored as a plain PHP code, accelerates caching with OPcache backend.
  * Author:              Nawawi Jamili
  * Author URI:          https://docketcache.com
diff --git a/includes/src/Crawler.php b/includes/src/Crawler.php
index 13c6f48..84450c9 100644
--- a/includes/src/Crawler.php
+++ b/includes/src/Crawler.php
@@ -14,7 +14,7 @@
 
 final class Crawler
 {
-    private static $version = '21.08.11';
+    private static $version = '22.07.01';
     public static $send_cookie = false;
 
     private static function default_args($param = [])
diff --git a/includes/src/Event.php b/includes/src/Event.php
index 74a26ef..6a7ec69 100644
--- a/includes/src/Event.php
+++ b/includes/src/Event.php
@@ -265,7 +265,6 @@ public function garbage_collector($force = false)
         $fcnt = 0;
         $pcnt = 0;
         $slowdown = 0;
-        $slowdown2 = 0;
 
         foreach ($this->pt->scanfiles($this->pt->cache_path) as $object) {
             if ($this->max_execution_time > 0 && (microtime(true) - $this->wp_start_timestamp) > $this->max_execution_time) {
diff --git a/includes/src/MoCache.php b/includes/src/MoCache.php
index 9ee3bc2..0b9edb6 100644
--- a/includes/src/MoCache.php
+++ b/includes/src/MoCache.php
@@ -21,6 +21,11 @@ final class MoCache
     private $upstream = null;
     private $mofile = null;
 
+    // Avoid warning on get_translations_for_domain.
+    // Reference: wp-includes/pomo/translations.php.
+    public $entries = [];
+    public $headers = [];
+
     public function __construct($mofile, $domain, $override)
     {
         $this->mofile = apply_filters('load_textdomain_mofile', $mofile, $domain);
diff --git a/includes/src/Plugin.php b/includes/src/Plugin.php
index 6f4e161..f9246d1 100644
--- a/includes/src/Plugin.php
+++ b/includes/src/Plugin.php
@@ -843,7 +843,7 @@ public function cleanuppost()
                     wp_delete_post($id, true);
                     $doflush = true;
                 }
-                $collect['trash'] += \count($query);
+                $collect['trashbin'] += \count($query);
             }
 
             if ($is_multisite) {
diff --git a/includes/vendor/autoload.php b/includes/vendor/autoload.php
index 77acf5e..02a47a9 100644
--- a/includes/vendor/autoload.php
+++ b/includes/vendor/autoload.php
@@ -2,6 +2,11 @@
 
 // autoload.php @generated by Composer
 
+if (PHP_VERSION_ID < 50600) {
+    echo 'Composer 2.3.0 dropped support for autoloading on PHP <5.6 and you are running '.PHP_VERSION.', please upgrade PHP or use Composer 2.2 LTS via "composer self-update --2.2". Aborting.'.PHP_EOL;
+    exit(1);
+}
+
 require_once __DIR__ . '/composer/autoload_real.php';
 
 return ComposerAutoloaderInit71169967e8f502f7da209e4236957996::getLoader();
diff --git a/includes/vendor/composer/InstalledVersions.php b/includes/vendor/composer/InstalledVersions.php
index 41bc143..c6b54af 100644
--- a/includes/vendor/composer/InstalledVersions.php
+++ b/includes/vendor/composer/InstalledVersions.php
@@ -28,7 +28,7 @@ class InstalledVersions
 {
     /**
      * @var mixed[]|null
-     * @psalm-var array{root: array{name: string, version: string, reference: string, pretty_version: string, aliases: string[], dev: bool, install_path: string, type: string}, versions: array<string, array{dev_requirement: bool, pretty_version?: string, version?: string, aliases?: string[], reference?: string, replaced?: string[], provided?: string[], install_path?: string, type?: string}>}|array{}|null
+     * @psalm-var array{root: array{name: string, pretty_version: string, version: string, reference: string|null, type: string, install_path: string, aliases: string[], dev: bool}, versions: array<string, array{pretty_version?: string, version?: string, reference?: string|null, type?: string, install_path?: string, aliases?: string[], dev_requirement: bool, replaced?: string[], provided?: string[]}>}|array{}|null
      */
     private static $installed;
 
@@ -39,7 +39,7 @@ class InstalledVersions
 
     /**
      * @var array[]
-     * @psalm-var array<string, array{root: array{name: string, version: string, reference: string, pretty_version: string, aliases: string[], dev: bool, install_path: string, type: string}, versions: array<string, array{dev_requirement: bool, pretty_version?: string, version?: string, aliases?: string[], reference?: string, replaced?: string[], provided?: string[], install_path?: string, type?: string}>}>
+     * @psalm-var array<string, array{root: array{name: string, pretty_version: string, version: string, reference: string|null, type: string, install_path: string, aliases: string[], dev: bool}, versions: array<string, array{pretty_version?: string, version?: string, reference?: string|null, type?: string, install_path?: string, aliases?: string[], dev_requirement: bool, replaced?: string[], provided?: string[]}>}>
      */
     private static $installedByVendor = array();
 
@@ -243,7 +243,7 @@ public static function getInstallPath($packageName)
 
     /**
      * @return array
-     * @psalm-return array{name: string, version: string, reference: string, pretty_version: string, aliases: string[], dev: bool, install_path: string, type: string}
+     * @psalm-return array{name: string, pretty_version: string, version: string, reference: string|null, type: string, install_path: string, aliases: string[], dev: bool}
      */
     public static function getRootPackage()
     {
@@ -257,7 +257,7 @@ public static function getRootPackage()
      *
      * @deprecated Use getAllRawData() instead which returns all datasets for all autoloaders present in the process. getRawData only returns the first dataset loaded, which may not be what you expect.
      * @return array[]
-     * @psalm-return array{root: array{name: string, version: string, reference: string, pretty_version: string, aliases: string[], dev: bool, install_path: string, type: string}, versions: array<string, array{dev_requirement: bool, pretty_version?: string, version?: string, aliases?: string[], reference?: string, replaced?: string[], provided?: string[], install_path?: string, type?: string}>}
+     * @psalm-return array{root: array{name: string, pretty_version: string, version: string, reference: string|null, type: string, install_path: string, aliases: string[], dev: bool}, versions: array<string, array{pretty_version?: string, version?: string, reference?: string|null, type?: string, install_path?: string, aliases?: string[], dev_requirement: bool, replaced?: string[], provided?: string[]}>}
      */
     public static function getRawData()
     {
@@ -280,7 +280,7 @@ public static function getRawData()
      * Returns the raw data of all installed.php which are currently loaded for custom implementations
      *
      * @return array[]
-     * @psalm-return list<array{root: array{name: string, version: string, reference: string, pretty_version: string, aliases: string[], dev: bool, install_path: string, type: string}, versions: array<string, array{dev_requirement: bool, pretty_version?: string, version?: string, aliases?: string[], reference?: string, replaced?: string[], provided?: string[], install_path?: string, type?: string}>}>
+     * @psalm-return list<array{root: array{name: string, pretty_version: string, version: string, reference: string|null, type: string, install_path: string, aliases: string[], dev: bool}, versions: array<string, array{pretty_version?: string, version?: string, reference?: string|null, type?: string, install_path?: string, aliases?: string[], dev_requirement: bool, replaced?: string[], provided?: string[]}>}>
      */
     public static function getAllRawData()
     {
@@ -303,7 +303,7 @@ public static function getAllRawData()
      * @param  array[] $data A vendor/composer/installed.php data set
      * @return void
      *
-     * @psalm-param array{root: array{name: string, version: string, reference: string, pretty_version: string, aliases: string[], dev: bool, install_path: string, type: string}, versions: array<string, array{dev_requirement: bool, pretty_version?: string, version?: string, aliases?: string[], reference?: string, replaced?: string[], provided?: string[], install_path?: string, type?: string}>} $data
+     * @psalm-param array{root: array{name: string, pretty_version: string, version: string, reference: string|null, type: string, install_path: string, aliases: string[], dev: bool}, versions: array<string, array{pretty_version?: string, version?: string, reference?: string|null, type?: string, install_path?: string, aliases?: string[], dev_requirement: bool, replaced?: string[], provided?: string[]}>} $data
      */
     public static function reload($data)
     {
@@ -313,7 +313,7 @@ public static function reload($data)
 
     /**
      * @return array[]
-     * @psalm-return list<array{root: array{name: string, version: string, reference: string, pretty_version: string, aliases: string[], dev: bool, install_path: string, type: string}, versions: array<string, array{dev_requirement: bool, pretty_version?: string, version?: string, aliases?: string[], reference?: string, replaced?: string[], provided?: string[], install_path?: string, type?: string}>}>
+     * @psalm-return list<array{root: array{name: string, pretty_version: string, version: string, reference: string|null, type: string, install_path: string, aliases: string[], dev: bool}, versions: array<string, array{pretty_version?: string, version?: string, reference?: string|null, type?: string, install_path?: string, aliases?: string[], dev_requirement: bool, replaced?: string[], provided?: string[]}>}>
      */
     private static function getInstalled()
     {
diff --git a/includes/vendor/composer/autoload_real.php b/includes/vendor/composer/autoload_real.php
index a2be10f..acbaf51 100644
--- a/includes/vendor/composer/autoload_real.php
+++ b/includes/vendor/composer/autoload_real.php
@@ -29,7 +29,7 @@ public static function getLoader()
         spl_autoload_unregister(array('ComposerAutoloaderInit71169967e8f502f7da209e4236957996', 'loadClassLoader'));
 
         require __DIR__ . '/autoload_static.php';
-        \Composer\Autoload\ComposerStaticInit71169967e8f502f7da209e4236957996::getInitializer($loader)();
+        call_user_func(\Composer\Autoload\ComposerStaticInit71169967e8f502f7da209e4236957996::getInitializer($loader));
 
         $loader->register(true);
 
diff --git a/includes/vendor/composer/installed.php b/includes/vendor/composer/installed.php
index 5f972a7..5b5aaa1 100644
--- a/includes/vendor/composer/installed.php
+++ b/includes/vendor/composer/installed.php
@@ -1,40 +1,40 @@
 <?php return array(
     'root' => array(
+        'name' => 'nawawi/docket-cache',
         'pretty_version' => 'dev-master',
         'version' => 'dev-master',
+        'reference' => '23082fe9d10007bed258a977b1d5f0173d5729c3',
         'type' => 'wordpress-plugin',
         'install_path' => __DIR__ . '/../../../',
         'aliases' => array(),
-        'reference' => 'aae4a66153c4248f80e3cfc8e93b330032109d39',
-        'name' => 'nawawi/docket-cache',
         'dev' => true,
     ),
     'versions' => array(
         'nawawi/docket-cache' => array(
             'pretty_version' => 'dev-master',
             'version' => 'dev-master',
+            'reference' => '23082fe9d10007bed258a977b1d5f0173d5729c3',
             'type' => 'wordpress-plugin',
             'install_path' => __DIR__ . '/../../../',
             'aliases' => array(),
-            'reference' => 'aae4a66153c4248f80e3cfc8e93b330032109d39',
             'dev_requirement' => false,
         ),
         'symfony/polyfill-php80' => array(
-            'pretty_version' => 'v1.25.0',
-            'version' => '1.25.0.0',
+            'pretty_version' => 'v1.26.0',
+            'version' => '1.26.0.0',
+            'reference' => 'cfa0ae98841b9e461207c13ab093d76b0fa7bace',
             'type' => 'library',
             'install_path' => __DIR__ . '/../symfony/polyfill-php80',
             'aliases' => array(),
-            'reference' => '4407588e0d3f1f52efb65fbe92babe41f37fe50c',
             'dev_requirement' => false,
         ),
         'symfony/var-exporter' => array(
-            'pretty_version' => 'v5.4.8',
-            'version' => '5.4.8.0',
+            'pretty_version' => 'v5.4.10',
+            'version' => '5.4.10.0',
+            'reference' => '8fc03ee75eeece3d9be1ef47d26d79bea1afb340',
             'type' => 'library',
             'install_path' => __DIR__ . '/../symfony/var-exporter',
             'aliases' => array(),
-            'reference' => '7e132a3fcd4b57add721b4207236877b6017ec93',
             'dev_requirement' => false,
         ),
     ),
diff --git a/includes/vendor/symfony/var-exporter/Instantiator.php b/includes/vendor/symfony/var-exporter/Instantiator.php
index 9b3c7b7..e94c8c3 100644
--- a/includes/vendor/symfony/var-exporter/Instantiator.php
+++ b/includes/vendor/symfony/var-exporter/Instantiator.php
@@ -39,10 +39,10 @@ final class Instantiator
      *         Bar::class => ['privateBarProperty' => $propertyValue],
      *     ]);
      *
-     * Instances of ArrayObject, ArrayIterator and SplObjectHash can be created
+     * Instances of ArrayObject, ArrayIterator and SplObjectStorage can be created
      * by using the special "\0" property name to define their internal value:
      *
-     *     // creates an SplObjectHash where $info1 is attached to $obj1, etc.
+     *     // creates an SplObjectStorage where $info1 is attached to $obj1, etc.
      *     Instantiator::instantiate(SplObjectStorage::class, ["\0" => [$obj1, $info1, $obj2, $info2...]]);
      *
      *     // creates an ArrayObject populated with $inputArray
diff --git a/includes/vendor/symfony/var-exporter/Internal/Exporter.php b/includes/vendor/symfony/var-exporter/Internal/Exporter.php
index 334d02d..dad9002 100644
--- a/includes/vendor/symfony/var-exporter/Internal/Exporter.php
+++ b/includes/vendor/symfony/var-exporter/Internal/Exporter.php
@@ -108,12 +108,7 @@ public static function prepare($values, $objectsPool, &$refsPool, &$objectsCount
                 $arrayValue = (array) $value;
             } elseif ($value instanceof \Serializable
                 || $value instanceof \__PHP_Incomplete_Class
-                || $value instanceof \DatePeriod
-                || (\PHP_VERSION_ID >= 80200 && (
-                    $value instanceof \DateTimeInterface
-                    || $value instanceof \DateTimeZone
-                    || $value instanceof \DateInterval
-                ))
+                || \PHP_VERSION_ID < 80200 && $value instanceof \DatePeriod
             ) {
                 ++$objectsCount;
                 $objectsPool[$value] = [$id = \count($objectsPool), serialize($value), [], 0];
diff --git a/languages/docket-cache.pot b/languages/docket-cache.pot
index 277dcd1..e4edf6e 100644
--- a/languages/docket-cache.pot
+++ b/languages/docket-cache.pot
@@ -2,16 +2,16 @@
 # This file is distributed under the MIT.
 msgid ""
 msgstr ""
-"Project-Id-Version: Docket Cache 21.08.11\n"
+"Project-Id-Version: Docket Cache 22.07.01\n"
 "Report-Msgid-Bugs-To: https://wordpress.org/support/plugin/docket-cache\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
-"POT-Creation-Date: 2022-05-30T13:40:11+00:00\n"
+"POT-Creation-Date: 2022-07-15T11:40:35+00:00\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
-"X-Generator: WP-CLI 2.5.0\n"
+"X-Generator: WP-CLI 2.6.0\n"
 "X-Domain: docket-cache\n"
 
 #. Plugin Name of the plugin
diff --git a/readme.txt b/readme.txt
index 4377c9c..1aba851 100644
--- a/readme.txt
+++ b/readme.txt
@@ -4,7 +4,7 @@ Tags: object cache, OPcache, fastcgi, cache, database, Optimisation, performance
 Requires at least: 5.4
 Tested up to: 6.0
 Requires PHP: 7.2.5
-Stable tag: 21.08.11
+Stable tag: 22.07.01
 License: MIT
 License URI: https://github.com/nawawi/docket-cache/blob/master/LICENSE.txt
 
@@ -171,6 +171,11 @@ Yes, you can. It can boost more your WordPress performance since there is no net
 Please do manually remove wp-content/object-cache.php and wp-content/cache/docket-cache if an error occurs during updates. Thanks.
 
 == Changelog ==
+= 22.07.01 (2022-07-15) =
+- Fixed: Plugin:cleanuppost() -> Invalid index for trashbin.
+- Fixed: MoCache() -> Add $entries, $headers properties to avoid warning on get_translations_for_domain.
+- Updated: Symfony component -> symfony/var-exporter.
+
 = 21.08.11 =
 - Fixed: Avoid calling Filesystem::close_buffer() if a process involved accessing a disk.
 - Fixed: Removed handling stale cache on shutdown.