Preparing release v4.28.1 (#345)

* Preparing release v4.28.1

* Fixed the wrong version in CHANGELOG.

* Added new line between changelog and version number in readme.txt.

CHANGELOG.md

@@ -1,6 +1,9 @@
 # CHANGELOG
 
-### [v4.28.0 _(Jan 24, 2023)_](https://github.com/omise/omise-woocommerce/releases/tag/v4.28.0)
+### [v4.28.1 _(Jan 25, 2023)_](https://github.com/omise/omise-woocommerce/releases/tag/v4.28.1)
+- Fix Uncaught Error: Call to a member function getShopeeBackend() on null. (PR [#344](https://github.com/omise/omise-woocommerce/pull/344))
+
+### [v4.28.0 _(Jan 23, 2023)_](https://github.com/omise/omise-woocommerce/releases/tag/v4.28.0)
 - Added ShopeePay for Thailand and Singapore. (PR [#339](https://github.com/omise/omise-woocommerce/pull/339))
 - Rebrand Lotus's Bill Payment. (PR [#336](https://github.com/omise/omise-woocommerce/pull/336))
 - Replace ezypay with MBB in installments. (PR [#333](https://github.com/omise/omise-woocommerce/pull/333))

omise-woocommerce.php

@@ -4,7 +4,7 @@
  * Plugin Name: Opn Payments
  * Plugin URI:  https://www.omise.co/woocommerce
  * Description: Opn Payments is a WordPress plugin designed specifically for WooCommerce. The plugin adds support for Opn Payments Payment Gateway's payment methods to WooCommerce.
- * Version:     4.28.0
+ * Version:     4.28.1
  * Author:      Opn Payments and contributors
  * Author URI:  https://github.com/omise/omise-woocommerce/graphs/contributors
  * Text Domain: omise
@@ -22,7 +22,7 @@ class Omise
 	 *
 	 * @var string
 	 */
-	public $version = '4.28.0';
+	public $version = '4.28.1';
 
 	/**
 	 * The Omise Instance.

readme.txt

@@ -3,7 +3,7 @@ Contributors: Opn Payments
 Tags: opn payments, payment, payment gateway, woocommerce plugin, omise, opn, installment, internet banking, alipay, paynow, truemoney wallet, woocommerce payment
 Requires at least: 4.3.1
 Tested up to: 6.0.2
-Stable tag: 4.28.0
+Stable tag: 4.28.1
 License: MIT
 License URI: https://opensource.org/licenses/MIT
 
@@ -34,6 +34,10 @@ From there:
 
 == Changelog ==
 
+= 4.28.1 =
+
+- Fix Uncaught Error: Call to a member function getShopeeBackend() on null. (PR [#344](https://github.com/omise/omise-woocommerce/pull/344))
+
 = 4.28.0 =
 
 - Added ShopeePay for Thailand and Singapore. (PR [#339](https://github.com/omise/omise-woocommerce/pull/339))