diff --git a/ordernumbers_woocommerce_basic.php b/ordernumbers_woocommerce_basic.php
index 4720b9dc4ddb713ea5b729271d8d3078bc233e68..20eba970301af45d5a4ad23a482c2e65a8888013 100644
--- a/ordernumbers_woocommerce_basic.php
+++ b/ordernumbers_woocommerce_basic.php
@@ -376,7 +376,8 @@ class OpenToolsOrdernumbersBasic {
 	 * Handle the "Assign a new order number" action from the edit order page in the backend
 	 */
 	public function order_action_assign_new_ordernumber( $order ) {
-		$number = $this->generateNumber($order->get_id(), $order, 'ordernumber');
+		$wc_ver3 = !version_compare(WC_VERSION, '2.7', '<');
+		$number = $this->generateNumber($wc_ver3?$order->get_id():$order->id, $order, 'ordernumber');
 	}
 		
 	/** 
diff --git a/plugin-update-checker/vendor/Parsedown.php b/plugin-update-checker/vendor/Parsedown.php
index 71a033e2ea3cdd46531161c746544fcf047bc5e9..bbc2d3236dc7e6378178883f349d1f8e8c227ed1 100644
--- a/plugin-update-checker/vendor/Parsedown.php
+++ b/plugin-update-checker/vendor/Parsedown.php
@@ -1409,7 +1409,7 @@ class Parsedown
 
             if (isset($Element['handler']))
             {
-                $markup .= $this->$Element['handler']($Element['text']);
+                $markup .= $this->{$Element['handler']}($Element['text']);
             }
             else
             {
diff --git a/readme.txt b/readme.txt
index f1913efd108584c9b7d892e9988fe8106570976a..d3753f6f3641948d918c93bf247af2ed8e9a297e 100644
--- a/readme.txt
+++ b/readme.txt
@@ -3,7 +3,7 @@ Plugin Name: Ordernumbers for WooCommerce
 Contributors: opentools
 Tags: WooCommerce, Order numbers, orders
 Requires at least: 4.0
-Tested up to: 4.8
+Tested up to: 4.9.2
 Stable tag: 1.4.3
 License: GPLv3 or later
 License URI: http://www.gnu.org/licenses/gpl.html
diff --git a/woocommerce-advanced-ordernumbers.php b/woocommerce-advanced-ordernumbers.php
index bb226b4548151dde5fd5eba75788e19c59872a3e..11fdb41eda603a1ce0a6c31f07739aba524f69bf 100644
--- a/woocommerce-advanced-ordernumbers.php
+++ b/woocommerce-advanced-ordernumbers.php
@@ -11,7 +11,7 @@
  * License: GPL2+
  * Network: true
  * WC requires at least: 2.2
- * WC tested up to: 3.1
+ * WC tested up to: 3.2.6
 */
 
 if ( ! defined( 'ABSPATH' ) ) { 
diff --git a/woocommerce-basic-ordernumbers.php b/woocommerce-basic-ordernumbers.php
index f984f71cb82a60fae708d09c832b00a7ff42fb17..21fbf51c38807166574af1bcf17dabcdab619454 100644
--- a/woocommerce-basic-ordernumbers.php
+++ b/woocommerce-basic-ordernumbers.php
@@ -10,7 +10,7 @@
  * License: GPL2+
  * Network: true
  * WC requires at least: 2.2
- * WC tested up to: 3.1
+ * WC tested up to: 3.2.6
 */
 
 if ( ! defined( 'ABSPATH' ) ) {