chore(release): 6.28.0-alpha.2 [skip ci]

# [6.28.0-alpha.2](v6.28.0-alpha.1...v6.28.0-alpha.2) (2025-12-16)

### Bug Fixes

* **indesign-exporter:** caption and credit character encoding ([#4364](#4364)) ([5868d27](5868d27))

Author: semantic-release-bot

newspack.php

@@ -2,7 +2,7 @@
 /**
  * Plugin Name: Newspack
  * Description: An advanced open-source publishing and revenue-generating platform for news organizations.
- * Version: 6.27.2
+ * Version: 6.28.0-alpha.2
  * Author: Automattic
  * Author URI: https://newspack.com/
  * License: GPL2
@@ -14,7 +14,7 @@
 
 defined( 'ABSPATH' ) || exit;
 
-define( 'NEWSPACK_PLUGIN_VERSION', '6.27.2' );
+define( 'NEWSPACK_PLUGIN_VERSION', '6.28.0-alpha.2' );
 
 // Define NEWSPACK_PLUGIN_FILE.
 if ( ! defined( 'NEWSPACK_PLUGIN_FILE' ) ) {