WordPress 4.2.1 is now available. This is a critical security release for all previous versions and we strongly encourage you to update your sites immediately.
Version 4.2 of WordPress, named “Powell” in honor of jazz pianist Bud Powell, is available. New features in 4.2 help you communicate and share, globally.
WordPress versions 4.1.1 and earlier are affected by a critical cross-site scripting vulnerability, which could enable anonymous users to compromise a site.