diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3b1de77f6..c394dadf0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,7 +1,17 @@
+# v1.7.30
+## 02/07/2022
+
+1. [](#new)
+    * Added twig filter `|field_parent` to get parent field name
+2. [](#bugfix)
+    * Fixed error while deleting retina image in admin
+    * Fixed "Page Authors" field in Security tab, wrongly loading and saving the value [#3525](https://github.com/getgrav/grav/issues/3525)
+    * Fixed accounts filter only matches against email address [getgrav/grav-plugin-admin#2224](https://github.com/getgrav/grav-plugin-admin/issues/2224)
+
 # v1.7.29.1
 ## 01/31/2022
 
-3. [](#bugfix)
+1. [](#bugfix)
     * Fixed `Call to undefined method` error when upgrading from Grav 1.6 [#3523](https://github.com/getgrav/grav/issues/3523)
 
 # v1.7.29
diff --git a/composer.json b/composer.json
index 2c82dd72d..511690104 100644
--- a/composer.json
+++ b/composer.json
@@ -82,7 +82,8 @@
         "ext-intl": "Recommended for multi-language sites",
         "ext-memcache": "Needed to support Memcache servers",
         "ext-memcached": "Needed to support Memcached servers",
-        "ext-redis": "Needed to support Redis servers"
+        "ext-redis": "Needed to support Redis servers",
+        "ext-exif": "Needed to use exif data from images."
     },
     "config": {
         "apcu-autoloader": true,
diff --git a/composer.lock b/composer.lock
index ce9ff368c..215309419 100644
--- a/composer.lock
+++ b/composer.lock
@@ -764,12 +764,12 @@
                 }
             },
             "autoload": {
-                "psr-4": {
-                    "GuzzleHttp\\Psr7\\": "src/"
-                },
                 "files": [
                     "src/functions_include.php"
-                ]
+                ],
+                "psr-4": {
+                    "GuzzleHttp\\Psr7\\": "src/"
+                }
             },
             "notification-url": "https://packagist.org/downloads/",
             "license": [
@@ -1316,16 +1316,16 @@
         },
         {
             "name": "nyholm/psr7",
-            "version": "1.4.1",
+            "version": "1.5.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/Nyholm/psr7.git",
-                "reference": "2212385b47153ea71b1c1b1374f8cb5e4f7892ec"
+                "reference": "1461e07a0f2a975a52082ca3b769ca912b816226"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/Nyholm/psr7/zipball/2212385b47153ea71b1c1b1374f8cb5e4f7892ec",
-                "reference": "2212385b47153ea71b1c1b1374f8cb5e4f7892ec",
+                "url": "https://api.github.com/repos/Nyholm/psr7/zipball/1461e07a0f2a975a52082ca3b769ca912b816226",
+                "reference": "1461e07a0f2a975a52082ca3b769ca912b816226",
                 "shasum": ""
             },
             "require": {
@@ -1377,7 +1377,7 @@
             ],
             "support": {
                 "issues": "https://github.com/Nyholm/psr7/issues",
-                "source": "https://github.com/Nyholm/psr7/tree/1.4.1"
+                "source": "https://github.com/Nyholm/psr7/tree/1.5.0"
             },
             "funding": [
                 {
@@ -1389,7 +1389,7 @@
                     "type": "github"
                 }
             ],
-            "time": "2021-07-02T08:32:20+00:00"
+            "time": "2022-02-02T18:37:57+00:00"
         },
         {
             "name": "nyholm/psr7-server",
@@ -2654,12 +2654,12 @@
                 }
             },
             "autoload": {
-                "psr-4": {
-                    "Symfony\\Polyfill\\Iconv\\": ""
-                },
                 "files": [
                     "bootstrap.php"
-                ]
+                ],
+                "psr-4": {
+                    "Symfony\\Polyfill\\Iconv\\": ""
+                }
             },
             "notification-url": "https://packagist.org/downloads/",
             "license": [
@@ -2814,12 +2814,12 @@
                 }
             },
             "autoload": {
-                "psr-4": {
-                    "Symfony\\Polyfill\\Php74\\": ""
-                },
                 "files": [
                     "bootstrap.php"
-                ]
+                ],
+                "psr-4": {
+                    "Symfony\\Polyfill\\Php74\\": ""
+                }
             },
             "notification-url": "https://packagist.org/downloads/",
             "license": [
@@ -2894,12 +2894,12 @@
                 }
             },
             "autoload": {
-                "psr-4": {
-                    "Symfony\\Polyfill\\Php80\\": ""
-                },
                 "files": [
                     "bootstrap.php"
                 ],
+                "psr-4": {
+                    "Symfony\\Polyfill\\Php80\\": ""
+                },
                 "classmap": [
                     "Resources/stubs"
                 ]
@@ -2977,12 +2977,12 @@
                 }
             },
             "autoload": {
-                "psr-4": {
-                    "Symfony\\Polyfill\\Php81\\": ""
-                },
                 "files": [
                     "bootstrap.php"
                 ],
+                "psr-4": {
+                    "Symfony\\Polyfill\\Php81\\": ""
+                },
                 "classmap": [
                     "Resources/stubs"
                 ]
@@ -3507,13 +3507,13 @@
                 "branch-alias": []
             },
             "autoload": {
+                "files": [
+                    "functions.php"
+                ],
                 "psr-4": {
                     "Codeception\\": "src/Codeception",
                     "Codeception\\Extension\\": "ext"
-                },
-                "files": [
-                    "functions.php"
-                ]
+                }
             },
             "notification-url": "https://packagist.org/downloads/",
             "license": [
@@ -4214,12 +4214,12 @@
             },
             "type": "library",
             "autoload": {
-                "psr-4": {
-                    "DeepCopy\\": "src/DeepCopy/"
-                },
                 "files": [
                     "src/DeepCopy/deep_copy.php"
-                ]
+                ],
+                "psr-4": {
+                    "DeepCopy\\": "src/DeepCopy/"
+                }
             },
             "notification-url": "https://packagist.org/downloads/",
             "license": [
@@ -4641,16 +4641,16 @@
         },
         {
             "name": "phpstan/phpstan",
-            "version": "1.4.3",
+            "version": "1.4.6",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phpstan/phpstan.git",
-                "reference": "89d10839dbfc95eeb7da656578b4a899ad2b59b1"
+                "reference": "8a7761f1c520e0dad6e04d862fdc697445457cfe"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/89d10839dbfc95eeb7da656578b4a899ad2b59b1",
-                "reference": "89d10839dbfc95eeb7da656578b4a899ad2b59b1",
+                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/8a7761f1c520e0dad6e04d862fdc697445457cfe",
+                "reference": "8a7761f1c520e0dad6e04d862fdc697445457cfe",
                 "shasum": ""
             },
             "require": {
@@ -4681,7 +4681,7 @@
             "description": "PHPStan - PHP Static Analysis Tool",
             "support": {
                 "issues": "https://github.com/phpstan/phpstan/issues",
-                "source": "https://github.com/phpstan/phpstan/tree/1.4.3"
+                "source": "https://github.com/phpstan/phpstan/tree/1.4.6"
             },
             "funding": [
                 {
@@ -4701,7 +4701,7 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2022-01-28T16:27:17+00:00"
+            "time": "2022-02-06T12:56:13+00:00"
         },
         {
             "name": "phpstan/phpstan-deprecation-rules",
diff --git a/system/blueprints/flex/user-accounts.yaml b/system/blueprints/flex/user-accounts.yaml
index 384bf97c0..8d336f993 100644
--- a/system/blueprints/flex/user-accounts.yaml
+++ b/system/blueprints/flex/user-accounts.yaml
@@ -122,6 +122,8 @@ config:
       fields:
         - key
         - email
+        - username
+        - fullname
 
 blueprints:
   configure:
diff --git a/system/blueprints/flex/user-groups.yaml b/system/blueprints/flex/user-groups.yaml
index 05ba87b73..a5d348b5a 100644
--- a/system/blueprints/flex/user-groups.yaml
+++ b/system/blueprints/flex/user-groups.yaml
@@ -113,6 +113,7 @@ config:
       fields:
         - key
         - groupname
+        - readableName
         - description
 
 blueprints:
diff --git a/system/blueprints/pages/partials/security.yaml b/system/blueprints/pages/partials/security.yaml
index d7619b975..26d8c7dcb 100644
--- a/system/blueprints/pages/partials/security.yaml
+++ b/system/blueprints/pages/partials/security.yaml
@@ -51,17 +51,13 @@ form:
             type: bool
 
         header.permissions.authors:
-          type: list
+          type: array
           toggleable: true
+          value_only: true
+          placeholder_value: PLUGIN_ADMIN.USERNAME
           label: PLUGIN_ADMIN.PAGE_AUTHORS
           help: PLUGIN_ADMIN.PAGE_AUTHORS_HELP
 
-          fields:
-            value:
-              type: text
-              placeholder: PLUGIN_ADMIN.USERNAME
-              style: vertical
-
         header.permissions.groups:
           ignore@: true
           type: acl_picker
diff --git a/system/defines.php b/system/defines.php
index 6520711f3..39dd69264 100644
--- a/system/defines.php
+++ b/system/defines.php
@@ -9,7 +9,7 @@
 
 // Some standard defines
 define('GRAV', true);
-define('GRAV_VERSION', '1.7.29.1');
+define('GRAV_VERSION', '1.7.30');
 define('GRAV_SCHEMA', '1.7.0_2020-11-20_1');
 define('GRAV_TESTING', false);
 
diff --git a/system/src/Grav/Common/Media/Traits/MediaUploadTrait.php b/system/src/Grav/Common/Media/Traits/MediaUploadTrait.php
index 2bddf9752..36a4503f1 100644
--- a/system/src/Grav/Common/Media/Traits/MediaUploadTrait.php
+++ b/system/src/Grav/Common/Media/Traits/MediaUploadTrait.php
@@ -573,6 +573,8 @@ protected function doRemove(string $filename, string $path): void
                 }
             }
         }
+
+        $this->hide($filename);
     }
 
     /**
diff --git a/system/src/Grav/Common/Twig/Extension/FilesystemExtension.php b/system/src/Grav/Common/Twig/Extension/FilesystemExtension.php
index 9b9085558..0ae793e62 100644
--- a/system/src/Grav/Common/Twig/Extension/FilesystemExtension.php
+++ b/system/src/Grav/Common/Twig/Extension/FilesystemExtension.php
@@ -266,24 +266,24 @@ public function getimagesize($filename)
     }
 
     /**
-     * @param string $file
+     * @param string $filename
      * @param string|null $required_sections
      * @param bool $as_arrays
      * @param bool $read_thumbnail
      * @return array|false
      */
-    public function exif_read_data($file, ?string $required_sections, bool $as_arrays = false, bool $read_thumbnail = false)
+    public function exif_read_data($filename, ?string $required_sections, bool $as_arrays = false, bool $read_thumbnail = false)
     {
-        if (!Utils::functionExists('exif_read_data') || !$this->checkFilename($file)) {
+        if (!Utils::functionExists('exif_read_data') || !$this->checkFilename($filename)) {
             return false;
         }
 
-        return exif_read_data($file, $required_sections, $as_arrays, $read_thumbnail);
+        return exif_read_data($filename, $required_sections, $as_arrays, $read_thumbnail);
     }
 
     /**
      * @param string $filename
-     * @return string|false
+     * @return int|false
      */
     public function exif_imagetype($filename)
     {
@@ -311,18 +311,18 @@ public function hash_file(string $algo, string $filename, bool $binary = false)
 
     /**
      * @param string $algo
-     * @param string $data
+     * @param string $filename
      * @param string $key
      * @param bool $binary
      * @return string|false
      */
-    public function hash_hmac_file(string $algo, string $data, string $key, bool $binary = false)
+    public function hash_hmac_file(string $algo, string $filename, string $key, bool $binary = false)
     {
-        if (!$this->checkFilename($data)) {
+        if (!$this->checkFilename($filename)) {
             return false;
         }
 
-        return hash_hmac_file($algo, $data, $key, $binary);
+        return hash_hmac_file($algo, $filename, $key, $binary);
     }
 
     /**
diff --git a/system/src/Grav/Common/Twig/Extension/GravExtension.php b/system/src/Grav/Common/Twig/Extension/GravExtension.php
index dcff83750..52e2a1841 100644
--- a/system/src/Grav/Common/Twig/Extension/GravExtension.php
+++ b/system/src/Grav/Common/Twig/Extension/GravExtension.php
@@ -116,6 +116,7 @@ public function getFilters(): array
             new TwigFilter('defined', [$this, 'definedDefaultFilter']),
             new TwigFilter('ends_with', [$this, 'endsWithFilter']),
             new TwigFilter('fieldName', [$this, 'fieldNameFilter']),
+            new TwigFilter('parent_field', [$this, 'fieldParentFilter']),
             new TwigFilter('ksort', [$this, 'ksortFilter']),
             new TwigFilter('ltrim', [$this, 'ltrimFilter']),
             new TwigFilter('markdown', [$this, 'markdownFunction'], ['needs_context' => true, 'is_safe' => ['html']]),
@@ -260,6 +261,10 @@ public function getTokenParsers(): array
         ];
     }
 
+    /**
+     * @param mixed $var
+     * @return string
+     */
     public function print_r($var)
     {
         return print_r($var, true);
@@ -278,6 +283,20 @@ public function fieldNameFilter($str)
         return array_shift($path) . ($path ? '[' . implode('][', $path) . ']' : '');
     }
 
+    /**
+     * Filters field name by changing dot notation into array notation.
+     *
+     * @param  string $str
+     * @return string
+     */
+    public function fieldParentFilter($str)
+    {
+        $path = explode('.', rtrim($str, '.'));
+        array_pop($path);
+
+        return implode('.', $path);
+    }
+
     /**
      * Protects email address.
      *