Prepare for 5.5.1 release

Closes #611

readme.txt

@@ -4,7 +4,7 @@ Donate link: https://contactform7.com/donate/
 Tags: contact, form, contact form, feedback, email, ajax, captcha, akismet, multilingual
 Requires at least: 5.7
 Tested up to: 5.8
-Stable tag: 5.4.2
+Stable tag: 5.5
 License: GPLv2 or later
 License URI: https://www.gnu.org/licenses/gpl-2.0.html
 
@@ -77,6 +77,11 @@ Do you have questions or issues with Contact Form 7? Use these support channels
 
 For more information, see [Releases](https://contactform7.com/category/releases/).
 
+= 5.5.1 =
+
+* Fixed: Reserved keyword was used in PHP class constant name.
+* Fixed: Uncaught TypeError on `in_array()` call.
+
 = 5.5 =
 
 [https://contactform7.com/contact-form-7-55/](https://contactform7.com/contact-form-7-55/)

wp-contact-form-7.php

@@ -7,10 +7,10 @@
 Author URI: https://ideasilo.wordpress.com/
 Text Domain: contact-form-7
 Domain Path: /languages/
-Version: 5.5
+Version: 5.5.1
 */
 
-define( 'WPCF7_VERSION', '5.5' );
+define( 'WPCF7_VERSION', '5.5.1' );
 
 define( 'WPCF7_REQUIRED_WP_VERSION', '5.7' );