diff --git a/application/Espo/Core/defaults/config.php b/application/Espo/Core/defaults/config.php
index 480e6510e5..37afe59630 100644
--- a/application/Espo/Core/defaults/config.php
+++ b/application/Espo/Core/defaults/config.php
@@ -111,6 +111,7 @@ return array (
     'adminNotifications' => true,
     'adminNotificationsNewVersion' => true,
     'adminNotificationsCronIsNotConfigured' => true,
+    'adminNotificationsNewExtensionVersion' => true,
     'assignmentEmailNotifications' => false,
     'assignmentEmailNotificationsEntityList' => ['Lead', 'Opportunity', 'Task', 'Case'],
     'assignmentNotificationsEntityList' => ['Meeting', 'Call', 'Task', 'Email'],
diff --git a/application/Espo/Core/defaults/systemConfig.php b/application/Espo/Core/defaults/systemConfig.php
index 514f1c4501..99275895f8 100644
--- a/application/Espo/Core/defaults/systemConfig.php
+++ b/application/Espo/Core/defaults/systemConfig.php
@@ -154,7 +154,11 @@ return array (    'defaultPermissions' =>
         'ldapUserTeamsIds',
         'ldapUserTeamsNames',
         'cleanupJobPeriod',
-        'cleanupActionHistoryPeriod'
+        'cleanupActionHistoryPeriod',
+        'adminNotifications',
+        'adminNotificationsNewVersion',
+        'adminNotificationsCronIsNotConfigured',
+        'adminNotificationsNewExtensionVersion'
     ),
     'userItems' =>
     array (
diff --git a/application/Espo/Jobs/CheckNewExtensionsVersions.php b/application/Espo/Jobs/CheckNewExtensionsVersions.php
new file mode 100644
index 0000000000..d089891acb
--- /dev/null
+++ b/application/Espo/Jobs/CheckNewExtensionsVersions.php
@@ -0,0 +1,54 @@
+<?php
+/************************************************************************
+ * This file is part of EspoCRM.
+ *
+ * EspoCRM - Open Source CRM application.
+ * Copyright (C) 2014-2018 Yuri Kuznetsov, Taras Machyshyn, Oleksiy Avramenko
+ * Website: http://www.espocrm.com
+ *
+ * EspoCRM is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * EspoCRM is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with EspoCRM. If not, see http://www.gnu.org/licenses/.
+ *
+ * The interactive user interfaces in modified source and object code versions
+ * of this program must display Appropriate Legal Notices, as required under
+ * Section 5 of the GNU General Public License version 3.
+ *
+ * In accordance with Section 7(b) of the GNU General Public License version 3,
+ * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
+ ************************************************************************/
+
+namespace Espo\Jobs;
+
+use Espo\Core\Exceptions;
+
+class CheckNewExtensionsVersions extends CheckNewVersion
+{
+    public function run()
+    {
+        if (!$this->getConfig()->get('adminNotifications') || !$this->getConfig()->get('adminNotificationsNewExtensionVersion')) {
+            return true;
+        }
+
+        $job = $this->getEntityManager()->getEntity('Job');
+        $job->set(array(
+            'name' => 'Check for New Version of installed extensions (job)',
+            'serviceName' => 'AdminNotifications',
+            'methodName' => 'jobCheckNewExtensionsVersions',
+            'executeTime' => $this->getRunTime()
+        ));
+
+        $this->getEntityManager()->saveEntity($job);
+
+        return true;
+    }
+}
\ No newline at end of file
diff --git a/application/Espo/Resources/i18n/en_US/Settings.json b/application/Espo/Resources/i18n/en_US/Settings.json
index 468b24d53a..8cc19e8bdf 100644
--- a/application/Espo/Resources/i18n/en_US/Settings.json
+++ b/application/Espo/Resources/i18n/en_US/Settings.json
@@ -93,6 +93,7 @@
         "aclAllowDeleteCreated": "Allow to remove created records",
         "adminNotifications": "System notifications in administration panel",
         "adminNotificationsNewVersion": "Show notification when new EspoCRM version is available",
+        "adminNotificationsNewExtensionVersion": "Show notification when new version of extensions are available",
         "textFilterUseContainsForVarchar": "Use 'contains' operator when filtering varchar fields",
         "authTokenPreventConcurrent": "Only one auth token per user",
         "scopeColorsDisabled": "Disable scope colors",
diff --git a/application/Espo/Resources/layouts/Settings/notifications.json b/application/Espo/Resources/layouts/Settings/notifications.json
index 58d2936061..a0abba9d6c 100644
--- a/application/Espo/Resources/layouts/Settings/notifications.json
+++ b/application/Espo/Resources/layouts/Settings/notifications.json
@@ -19,7 +19,7 @@
         "label": "Admin Notifications",
         "rows": [
             [{"name": "adminNotifications"}, false],
-            [{"name": "adminNotificationsNewVersion"}, false]
+            [{"name": "adminNotificationsNewVersion"}, {"name": "adminNotificationsNewExtensionVersion"}]
         ]
     }
 ]
\ No newline at end of file
diff --git a/application/Espo/Resources/metadata/entityDefs/ScheduledJob.json b/application/Espo/Resources/metadata/entityDefs/ScheduledJob.json
index 6cb3d2137a..7c9914cd5b 100644
--- a/application/Espo/Resources/metadata/entityDefs/ScheduledJob.json
+++ b/application/Espo/Resources/metadata/entityDefs/ScheduledJob.json
@@ -82,6 +82,11 @@
             "name": "Check for New Version",
             "isSystem": true,
             "scheduling": "15 5 * * *"
+        },
+        "CheckNewExtensionsVersions": {
+            "name": "Check for New Version of Installed Extensions",
+            "isSystem": true,
+            "scheduling": "25 5 * * *"
         }
     }
 }
diff --git a/application/Espo/Resources/metadata/entityDefs/Settings.json b/application/Espo/Resources/metadata/entityDefs/Settings.json
index 8f58e048c2..6c0fcb7ddc 100644
--- a/application/Espo/Resources/metadata/entityDefs/Settings.json
+++ b/application/Espo/Resources/metadata/entityDefs/Settings.json
@@ -453,6 +453,9 @@
         "adminNotificationsNewVersion": {
             "type": "bool"
         },
+        "adminNotificationsNewExtensionVersion": {
+            "type": "bool"
+        },
         "textFilterUseContainsForVarchar": {
             "type": "bool",
             "tooltip": true
diff --git a/application/Espo/Services/AdminNotifications.php b/application/Espo/Services/AdminNotifications.php
index 8b1bdf2c32..b8035dbae2 100644
--- a/application/Espo/Services/AdminNotifications.php
+++ b/application/Espo/Services/AdminNotifications.php
@@ -31,6 +31,13 @@ namespace Espo\Services;
 
 class AdminNotifications extends \Espo\Core\Services\Base
 {
+    /**
+     * Job for checking a new version of EspoCRM
+     *
+     * @param  object $data
+     *
+     * @return boolean
+     */
     public function jobCheckNewVersion($data)
     {
         $config = $this->getConfig();
@@ -40,24 +47,129 @@ class AdminNotifications extends \Espo\Core\Services\Base
         }
 
         $latestRelease = $this->getLatestRelease();
-        if (!empty($latestRelease['version']) && $config->get('latestVersion') != $latestRelease['version']) {
+        if (empty($latestRelease['version'])) {
             $config->set('latestVersion', $latestRelease['version']);
             $config->save();
+            return true;
+        }
+
+        if ($config->get('latestVersion') != $latestRelease['version']) {
+            $config->set('latestVersion', $latestRelease['version']);
+
+            if (!empty($latestRelease['notes'])) {
+                //todo: create notification
+            }
+
+            $config->save();
+            return true;
+        }
+
+        if (!empty($latestRelease['notes'])) {
+            //todo: find and modify notification
+        }
+
+        return true;
+    }
+
+    /**
+     * Job for cheking a new version of installed extensions
+     *
+     * @param  object $data
+     *
+     * @return boolean
+     */
+    public function jobCheckNewExtensionsVersions($data)
+    {
+        $config = $this->getConfig();
+
+        if (!$config->get('adminNotifications') || !$config->get('adminNotificationsNewExtensionVersion')) {
+            return true;
+        }
+
+        $pdo = $this->getEntityManager()->getPDO();
+
+        $query = "
+            SELECT id, name, version, check_version_url as url
+            FROM extension
+            WHERE deleted = 0
+            AND is_installed = 1
+            ORDER BY created_at
+        ";
+
+        $sth = $pdo->prepare($query);
+        $sth->execute();
+
+        $rowList = $sth->fetchAll(\PDO::FETCH_ASSOC);
+
+        $latestReleases = [];
+        foreach ($rowList as $row) {
+
+            $url = !empty($row['url']) ? $row['url'] : null;
+            $extensionName = $row['name'];
+
+            $latestRelease = $this->getLatestRelease($url, [
+                'response' => 'latestRelease',
+                'name' => $extensionName,
+            ]);
+
+            if (!empty($latestRelease) && !isset($latestRelease['error'])) {
+                $latestReleases[$extensionName] = $latestRelease;
+            }
+        }
+
+        $latestExtensionVersions = $config->get('latestExtensionVersions', []);
+
+        $save = false;
+        foreach ($latestReleases as $extensionName => $extensionData) {
+
+            if (empty($latestExtensionVersions[$extensionName])) {
+                $latestExtensionVersions[$extensionName] = $extensionData['version'];
+                $save = true;
+                continue;
+            }
+
+            if ($latestExtensionVersions[$extensionName] != $extensionData['version']) {
+                $latestExtensionVersions[$extensionName] = $extensionData['version'];
+
+                if (!empty($extensionData['notes'])) {
+                    //todo: create notification
+                }
+
+                $save = true;
+                continue;
+            }
+
+            if (!empty($extensionData['notes'])) {
+                //todo: find and modify notification
+            }
+        }
+
+        if ($save) {
+            $config->set('latestExtensionVersions', $latestExtensionVersions);
+            $config->save();
         }
 
         return true;
     }
 
-    protected function getLatestRelease($url = null, array $requestData = ['action' => 'latestRelease'])
+    /**
+     * Get latest version
+     *
+     * @param  string $url
+     * @param  array  $requestData
+     *
+     * @return array|null
+     */
+    protected function getLatestRelease($url = null, array $requestData = ['response' => 'latestRelease'])
     {
         if (function_exists('curl_version')) {
             $ch = curl_init();
 
-            curl_setopt($ch, CURLOPT_URL, $url ? $url : base64_decode('aHR0cHM6Ly9zLmVzcG9jcm0uY29tLw=='));
+            $requestUrl = $url ? $url : base64_decode('aHR0cHM6Ly9zLmVzcG9jcm0uY29tLw==');
+
+            curl_setopt($ch, CURLOPT_URL, $requestUrl. '?' . http_build_query($requestData));
             curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
             curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 60);
-            curl_setopt($ch, CURLOPT_POST, true);
-            curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($requestData));
 
             $result = curl_exec($ch);
             $httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
diff --git a/client/src/views/admin/notifications.js b/client/src/views/admin/notifications.js
index d129ac560b..107f770640 100644
--- a/client/src/views/admin/notifications.js
+++ b/client/src/views/admin/notifications.js
@@ -54,14 +54,14 @@ Espo.define('views/admin/notifications', 'views/settings/record/edit', function
                     true: [
                         {
                             action: 'show',
-                            fields: ['adminNotificationsNewVersion']
+                            fields: ['adminNotificationsNewVersion', 'adminNotificationsNewExtensionVersion']
                         }
                     ]
                 },
                 default: [
                     {
                         action: 'hide',
-                        fields: ['adminNotificationsNewVersion']
+                        fields: ['adminNotificationsNewVersion', 'adminNotificationsNewExtensionVersion']
                     }
                 ]
             }