GH#1840: Prepare Ultimate Multisite v2.16.0 release

VERSION

@@ -1 +1 @@
-2.15.2
+2.16.0

inc/class-wp-ultimo.php

@@ -31,7 +31,7 @@ final class WP_Ultimo {
 	 * @since 2.1.0
 	 * @var string
 	 */
-	const VERSION = '2.15.2';
+	const VERSION = '2.16.0';
 
 	/**
 	 * Core log handle for Ultimate Multisite.

package.json

@@ -1,5 +1,5 @@
 {
-  "version": "2.15.2",
+  "version": "2.16.0",
   "name": "ultimate-multisite",
   "title": "Ultimate Multisite",
   "homepage": "https://ultimatemultisite.com/",

readme.txt

@@ -5,7 +5,7 @@ Tags: multisite, domain mapping, wordpress multisite, multisite saas, waas
 Requires at least: 5.3
 Requires PHP: 8.2
 Tested up to: 7.1
-Stable tag: 2.15.2
+Stable tag: 2.16.0
 License: GPLv2
 License URI: http://www.gnu.org/licenses/gpl-2.0.html
 
@@ -252,6 +252,14 @@ No personal data, domains, IP addresses, or payment information are collected.
 
 == Changelog ==
 
+= 2.16.0 =
+Version [2.16.0] - Released on 2026-09-09
+- New: Try Ultimate Multisite in a live WordPress.org Playground preview before installing it.
+- Fix: Checkout plan labels, keyboard selection, existing-user login, and missing-payment-gateway guidance now work reliably.
+- Fix: Stripe subscriptions using Basil invoice references, SSO authentication cookies, and networks upgrading without saved SSO settings now behave correctly.
+- Fix: Setup wizard branding and wp-config.php error reporting, manual payment periods, and lifetime membership expiration now display and save correctly.
+- Improved: Translation comment handling and release quality checks are more reliable.
+
 = 2.15.2 =
 Version [2.15.2] - Released on 2026-09-08
 - Fix: Checkout now requires existing WordPress users to log in, preserves correct membership expiration dates, and publishes pending sites only after signup records are committed.

ultimate-multisite.php

@@ -3,7 +3,7 @@
  * Plugin Name: Ultimate Multisite
  * Plugin URI:  https://ultimatemultisite.com
  * Description: Ultimate Multisite is a WordPress Multisite plugin that turns your network into a complete Website-as-a-Service (WaaS) platform with subscriptions, site provisioning, domain mapping, and customer management. Formerly WP Ultimo.
- * Version:     2.15.2
+ * Version:     2.16.0
  * Author:      Ultimate Multisite Community
  * Author URI:  https://ultimatemultisite.com
  * License:     GPLv2 or later
@@ -65,7 +65,7 @@
 	define('WP_ULTIMO_PLUGIN_FILE', __FILE__);
 }
 if ( ! defined('WP_ULTIMO_VERSION')) {
-	define('WP_ULTIMO_VERSION', '2.15.2');
+	define('WP_ULTIMO_VERSION', '2.16.0');
 }
 if ( ! defined('MULTISITE_ULTIMATE_UPDATE_URL')) {
 	define('MULTISITE_ULTIMATE_UPDATE_URL', 'https://ultimatemultisite.com/');