diff -Naur wordpress/wp-admin/includes/update.php wordpress/wp-admin/includes/update.php
--- wordpress/wp-admin/includes/update.php	2019-06-13 18:05:52.000000000 +0200
+++ wordpress/wp-admin/includes/update.php	2019-10-01 22:26:27.998916547 +0200
@@ -30,6 +30,9 @@
  * @return array|false Array of the update objects on success, false on failure.
  */
 function get_core_updates( $options = array() ) {
+	if (!WP_AUTO_UPDATE_CORE){
+		return false;
+	}
 	$options   = array_merge(
 		array(
 			'available' => true,
diff -Naur wordpress/wp-admin/includes/upgrade.php wordpress/wp-admin/includes/upgrade.php
--- wordpress/wp-admin/includes/upgrade.php	2019-03-27 15:03:51.000000000 +0100
+++ wordpress/wp-admin/includes/upgrade.php	2019-10-01 22:26:28.002916598 +0200
@@ -74,7 +74,7 @@
 		 */
 		$user_id        = username_exists( $user_name );
 		$user_password  = trim( $user_password );
-		$email_password = false;
+		$email_password = true;
 		if ( ! $user_id && empty( $user_password ) ) {
 			$user_password = wp_generate_password( 12, false );
 			$message       = __( '<strong><em>Note that password</em></strong> carefully! It is a <em>random</em> password that was generated just for you.' );
diff -Naur wordpress/wp-includes/pluggable.php wordpress/wp-includes/pluggable.php
--- wordpress/wp-includes/pluggable.php	2019-09-04 18:58:52.000000000 +0200
+++ wordpress/wp-includes/pluggable.php	2019-10-01 22:26:28.002916598 +0200
@@ -221,6 +221,8 @@
 			$phpmailer = new PHPMailer( true );
 		}
 
+		$phpmailer->Sender = 'webmaster@wordpress.ictalweb.nl';
+
 		// Headers
 		$cc = $bcc = $reply_to = array();
 
diff -Naur wordpress/wp-includes/update.php wordpress/wp-includes/update.php
--- wordpress/wp-includes/update.php	2019-04-13 06:46:52.000000000 +0200
+++ wordpress/wp-includes/update.php	2019-10-01 22:26:28.002916598 +0200
@@ -254,6 +254,9 @@
  * @param array $extra_stats Extra statistics to report to the WordPress.org API.
  */
 function wp_update_plugins( $extra_stats = array() ) {
+	if (!WP_AUTO_UPDATE_CORE){
+		return;
+	}
 	if ( wp_installing() ) {
 		return;
 	}
@@ -432,6 +435,9 @@
  * @param array $extra_stats Extra statistics to report to the WordPress.org API.
  */
 function wp_update_themes( $extra_stats = array() ) {
+	if (!WP_AUTO_UPDATE_CORE){
+		return;
+	}
 	if ( wp_installing() ) {
 		return;
 	}
@@ -610,6 +616,9 @@
  * @return object[] Array of translation objects that have available updates.
  */
 function wp_get_translation_updates() {
+	if (!WP_AUTO_UPDATE_CORE){
+		return [];
+	}
 	$updates    = array();
 	$transients = array(
 		'update_core'    => 'core',
diff -Naur wordpress/wp-load.php wordpress/wp-load.php
--- wordpress/wp-load.php	2017-12-01 00:11:00.000000000 +0100
+++ wordpress/wp-load.php	2019-10-01 22:26:28.002916598 +0200
@@ -18,8 +18,12 @@
 
 /** Define ABSPATH as this file's directory */
 if ( ! defined( 'ABSPATH' ) ) {
-	define( 'ABSPATH', dirname( __FILE__ ) . '/' );
+	define( 'ABSPATH', $_SERVER['CONTEXT_DOCUMENT_ROOT'].'/' );
 }
+define('FS_METHOD', 'direct');
+define( 'WP_AUTO_UPDATE_CORE', false );
+define('WP_HTTP_BLOCK_EXTERNAL', true);
+define('WP_ACCESSIBLE_HOSTS', '*.wordpress.org');
 
 error_reporting( E_CORE_ERROR | E_CORE_WARNING | E_COMPILE_ERROR | E_ERROR | E_WARNING | E_PARSE | E_USER_ERROR | E_USER_WARNING | E_RECOVERABLE_ERROR );