diff --git a/src/ext/updater/.htaccess b/src/ext/updater/.htaccess
new file mode 100644
index 0000000..8d2f256
--- /dev/null
+++ b/src/ext/updater/.htaccess
@@ -0,0 +1 @@
+deny from all
diff --git a/src/ext/updater/class.controller.php b/src/ext/updater/class.controller.php
new file mode 100644
index 0000000..35c51f9
--- /dev/null
+++ b/src/ext/updater/class.controller.php
@@ -0,0 +1,66 @@
+<?php declare(strict_types=1);
+
+/*
+    This file is a part of myTinyTodo.
+    (C) Copyright 2022 Max Pozdeev <maxpozdeev@gmail.com>
+    Licensed under the GNU GPL version 2 or any later. See file COPYRIGHT for details.
+*/
+
+namespace UpdaterExtension;
+
+use \UpdaterExtension;
+use \Config;
+
+class Controller extends \ApiController
+{
+    function postCheck()
+    {
+        $prefs = UpdaterExtension::preferences();
+        $a = UpdaterExtension::lastVersionInfo();
+        if ($a) {
+            $prefs['lastCheck'] = time();
+            $prefs['version'] = $a['version'] ?? '';
+            $prefs['download'] = $a['download'] ?? '';
+            Config::saveDomain(UpdaterExtension::domain, $prefs);
+        }
+        $this->response->data = [ 'total' => 1 ];
+    }
+
+    function postUpdate()
+    {
+        $prefs = UpdaterExtension::preferences();
+        $url = $prefs['download'] ?? '';
+        if ($url == '') {
+            $this->response->data = [ 'total' => 0, 'msg' => __("updater.download_error") ];
+            return;
+        }
+        $file = MTTPATH. 'update.tar.gz';
+        $error = null;
+        if (!UpdaterExtension::download($url, $file, $error)) {
+            $this->response->data = [ 'total' => 0, 'msg' => __("updater.download_error"), 'details' => $error ];
+            return;
+        }
+        $error = null;
+        if (!UpdaterExtension::extractAndReplace($file, $error)) {
+            $this->response->data = [ 'total' => 0, 'msg' => __("updater.update_error"), 'details' => $error ];
+            return;
+        }
+        @unlink($file);
+
+        if (function_exists("opcache_reset")) {
+            opcache_reset();
+        }
+
+        // TODO: need to run post-update by new version
+        // ...
+
+        $prefs['version'] = '';
+        $prefs['download'] = '';
+        $prefs['lastCheck'] = 0;
+        Config::saveDomain(UpdaterExtension::domain, $prefs);
+
+        $this->response->data = [ 'total' => 1, 'msg' => __("updater.updated"), 'reload' => 'ext-settings' ];
+    }
+
+
+}
diff --git a/src/ext/updater/extension.json b/src/ext/updater/extension.json
new file mode 100644
index 0000000..88f2086
--- /dev/null
+++ b/src/ext/updater/extension.json
@@ -0,0 +1,6 @@
+{
+    "bundleId": "updater",
+    "name": "Updates",
+    "version": "0.9",
+    "description": "myTinyTodo self-updater"
+}
diff --git a/src/ext/updater/lang/en.json b/src/ext/updater/lang/en.json
new file mode 100644
index 0000000..a2ab622
--- /dev/null
+++ b/src/ext/updater/lang/en.json
@@ -0,0 +1,13 @@
+{
+    "ext.updater.name": "Updates",
+    "updater.h_check_updates": "Check updates",
+    "updater.check": "Check",
+    "updater.no_updates": "No updates available",
+    "updater.current_version": "Current version",
+    "updater.last_checked": "Last checked",
+    "updater.updatet_version_avaialable": "Updated version is available",
+    "updater.update": "Update",
+    "updater.updated": "Update has completed",
+    "updater.download_error": "Download failed",
+    "updater.update_error": "Update error"
+}
diff --git a/src/ext/updater/lang/ru.json b/src/ext/updater/lang/ru.json
new file mode 100644
index 0000000..57a0a8a
--- /dev/null
+++ b/src/ext/updater/lang/ru.json
@@ -0,0 +1,13 @@
+{
+    "ext.updater.name": "Обновления",
+    "updater.h_check_updates": "Проверка обновлений",
+    "updater.check": "Проверить",
+    "updater.no_updates": "Нет обновлений",
+    "updater.current_version": "Текущая версия",
+    "updater.last_checked": "Последняя проверка",
+    "updater.updatet_version_avaialable": "Доступно обновление",
+    "updater.update": "Обновить",
+    "updater.updated": "Обновление завершено",
+    "updater.download_error": "Ошибка при загрузке",
+    "updater.update_error": "Ошибка при обновлении"
+}
diff --git a/src/ext/updater/loader.php b/src/ext/updater/loader.php
new file mode 100644
index 0000000..93148ac
--- /dev/null
+++ b/src/ext/updater/loader.php
@@ -0,0 +1,195 @@
+<?php declare(strict_types=1);
+
+/*
+    This file is a part of myTinyTodo.
+    (C) Copyright 2022 Max Pozdeev <maxpozdeev@gmail.com>
+    Licensed under the GNU GPL version 2 or any later. See file COPYRIGHT for details.
+*/
+
+if (!defined('MTTPATH')) {
+    die("Unexpected usage.");
+}
+
+require_once('class.controller.php');
+
+function mtt_ext_updater_instance(): MTTExtension
+{
+    return new UpdaterExtension();
+}
+
+use UpdaterExtension\Controller;
+
+class UpdaterExtension extends MTTExtension implements MTTExtensionSettingsInterface, MTTHttpApiExtender
+{
+    //the same as dir name
+    const bundleId = 'updater';
+
+    // settings domain
+    const domain = "ext.updater.json";
+
+    function init()
+    {
+    }
+
+    // MTTHttpApiExtender
+    function extendHttpApi(): array
+    {
+        return array(
+            '/check' => [
+                'POST'  => [ Controller::class , 'postCheck' ],
+            ],
+            '/update' => [
+                'POST'  => [ Controller::class , 'postUpdate' ],
+            ]
+        );
+    }
+
+    function settingsPage(): string
+    {
+        $e = function($s) { return __($s, true); };
+        $ext = htmlspecialchars(self::bundleId);
+        $prefs = self::preferences();
+        $lastCheck = $prefs['lastCheck'] ?? 0;
+        $version =  $prefs['version'] ?? '';
+        $updateStr = '';
+        $curVersion = htmlspecialchars(mytinytodo\Version::VERSION);
+        if (time() - $lastCheck > 86400*7) {
+            $a = self::lastVersionInfo();
+            if ($a) {
+                $lastCheck = $prefs['lastCheck'] = time();
+                $version = $prefs['version'] = $a['version'] ?? '';
+                $prefs['download'] = $a['download'] ?? '';
+                Config::saveDomain(self::domain, $prefs);
+            }
+        }
+        if ($version != '') {
+            if ( version_compare($version, mytinytodo\Version::VERSION) > 0 ) {
+                $updateStr = "<br> {$e('updater.updatet_version_avaialable')}: ". htmlspecialchars($version);
+                if ("1.7." == substr($version, 0, 4)) {
+                    $updateStr .= "<br><br>\n <a href=\"#\" data-ext-settings-action=\"post:update\" data-ext=\"$ext\">{$e('updater.update')}</a> ";
+                }
+            }
+            else {
+                $updateStr = "<br>{$e('updater.no_updates')}";
+            }
+        }
+        $lastCheckStr = $lastCheck ? timestampToDatetime($lastCheck, true) : "";
+
+
+        return
+<<<EOD
+<div class="tr">
+ <div class="th"> {$e('updater.h_check_updates')} </div>
+ <div class="td">
+    {$e('updater.current_version')}: $curVersion <br>
+    {$e('updater.last_checked')}: $lastCheckStr &nbsp; <button type=button data-ext-settings-action="post:check" data-ext="$ext">{$e('updater.check')}</button> <br>
+    $updateStr
+ </div>
+</div>
+EOD;
+    }
+
+    function saveSettings(array $params, ?string &$outMessage): bool
+    {
+       return true;
+    }
+
+
+
+    static function preferences(): array
+    {
+        $prefs = Config::requestDomain(self::domain);
+        return $prefs;
+    }
+
+    static function lastVersionInfo(): ?array
+    {
+        $options = array(
+            'http' => array(
+                'header'  => "Content-type: application/json\r\nUser-Agent: mytinytodo\r\n"
+            )
+        );
+        $context  = stream_context_create($options);
+        $json = @file_get_contents("https://api.github.com/repos/maxpozdeev/mytinytodo/releases/latest", false, $context);
+        if ($json === false || $json == '') {
+            return null;
+        }
+        $a = json_decode($json, true) ?? [];
+        $ret = [];
+        if ( isset($a['name']) && isset($a['assets']) &&
+             is_array($a['assets']) && count($a['assets']) > 0 &&
+             ($asset = $a['assets'][0]) && isset($asset['browser_download_url']) )
+        {
+            $ret['version'] = substr($a['name'], 1); //remove first 'v'
+            $ret['download'] = $asset['browser_download_url'];
+        }
+        else {
+            error_log("Unexpected content");
+        }
+        return $ret;
+    }
+
+    static function download(string $url, string $outfile, string &$error = null): bool
+    {
+        $dir = dirname($outfile);
+        if (!is_dir($dir) || !is_writable($dir)) {
+            $error = "myTinyTodo directory is not writable";
+            return false;
+        }
+        $f = @fopen($url, 'r');
+        if ($f === false) {
+            $ea = error_get_last();
+            $error = ($ea && isset($ea['message'])) ? $ea['message'] : "Failed to open stream";
+            return false;
+        }
+        $bytes = @file_put_contents($outfile, $f, LOCK_EX);
+        $ea = error_get_last();
+        fclose($f);
+        if ($bytes === false) {
+            $error = ($ea && isset($ea['message'])) ? $ea['message'] :  "Can not save file";
+            return false;
+        }
+        return true;
+    }
+
+    static function extractAndReplace(string $filename, string &$error = null): bool
+    {
+        $dir = MTTPATH;
+        if (!is_dir($dir) || !is_writable($dir)) {
+            $error = "myTinyTodo directory is not writable";
+            return false;
+        }
+
+        $output = null;
+        $retval = null;
+        $command = "tar xzf ". escapeshellarg($filename). " --strip-components 1 -C ". escapeshellarg($dir). " 2>&1";
+        @exec($command, $output, $retval);
+        if ($retval != 0) {
+            $error = "Failed to execute tar command ($retval): ". ($output ? implode("\n", $output) : "no output");
+            error_log($error);
+            return false;
+        }
+
+        // Extensions
+        $dir = MTT_EXT;
+        $filename = $dir . 'extensions.tar.gz';
+        if (file_exists($filename)) {
+            if (!is_writable($dir)) {
+                $error = "Extensions directory is not writable";
+                return false;
+            }
+            $command = "tar xzf ". escapeshellarg($filename). " -C ". escapeshellarg($dir). " 2>&1";
+            @exec($command, $output, $retval);
+            if ($retval != 0) {
+                $error = "Extensions: failed to execute tar command ($retval): ". ($output ? implode("\n", $output) : "no output");
+                error_log($error);
+                return false;
+            }
+            unlink($filename);
+        }
+
+        return true;
+    }
+
+
+}