It is critical that users with a previous version of WordPress upgrade to the new version immediately due to the security vulnerabilities fixed. A cross-site scripting vulnerability was recently discovered, failure to patch this vulnerability may result in the loss of data, theft of data, or worse. This is considered a critical fix and time should not be wasted in upgrading your WordPress installation. Please visit https://wordpress.org/news/2015/04/wordpress-4-2-1/ for additional information.
Monday, April 27, 2015