Merge remote-tracking branch 'origin/wpPluginsUpdated6-9' into rn-stage

Author: rachelwhitton

src/source/releasenotes/2026-01-21-wp-plugins-confirmed-6-9.md

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+---
+title: Pantheon WordPress plugins now compatible with WordPress 6.9
+published_date: "2026-01-21"
+categories: [wordpress, plugins]
+---
+We are pleased to announce that all of our [actively maintained WordPress plugins](/guides/wordpress-configurations/plugins) are now confirmed fully compatible with WordPress 6.9.
+
+## Actively Maintained Plugins
+The following plugins have been tested and verified for compatibility:
+
+- [WP SAML Auth](https://wordpress.org/plugins/wp-saml-auth/)
+- [Pantheon Advanced Page Cache](https://wordpress.org/plugins/pantheon-advanced-page-cache)
+- [Pantheon HUD](https://wordpress.org/plugins/pantheon-hud/)
+- [Native PHP Sessions](https://wordpress.org/plugins/wp-native-php-sessions/)
+- [Pantheon Content Publisher](https://wordpress.org/plugins/pantheon-content-publisher)
+- [WP Redis](https://wordpress.org/plugins/wp-redis/)
+
+## Action Required
+We recommend updating your Pantheon plugins to their latest versions alongside your WordPress 6.9 core upgrade. This ensures you receive the latest performance optimizations, security patches, and full compatibility with PHP 8.4.
+
+As a best practice, always test these updates in a Dev or Multidev environment before deploying to Live.