WordPress 3.3.1 Security and Maintenance Release is now available.
This maintenance release fixes 15 issues with WordPress 3.3, as well as a fix for a cross-site scripting vulnerability that affected version 3.3.
Download: http://wordpress.org/download/
WordPress Codex at: http://codex.wordpress.org/Version_3.3.1 lists revised files.
wp-includes/nav-menu-template.php
wp-includes/version.php
wp-includes/functions.php
wp-includes/user.php
wp-includes/functions.wp-styles.php
wp-includes/capabilities.php
wp-includes/script-loader.php
wp-includes/class-wp-admin-bar.php
readme.html
wp-admin/users.php
wp-admin/includes/dashboard.php
wp-admin/includes/update-core.php
wp-admin/includes/template.php
wp-admin/includes/ms.php
wp-admin/js/common.js
wp-admin/js/common.dev.js
wp-admin/load-scripts.php
wp-admin/press-this.php
wp-admin/about.php