WordPress announced a new release on November 20, 2014 – WordPress 4.0.1 Security Release.
“WordPress 4.0.1 is now available. This is a critical security release for all previous versions and we strongly encourage you to update your sites immediately.
Sites that support automatic background updates will be updated to WordPress 4.0.1 within the next few hours. If you are still on WordPress 3.9.2, 3.8.4, or 3.7.4, you will be updated to 3.9.3, 3.8.5, or 3.7.5 to keep everything secure.”
Since this is a security release, ALL websites should be updated to a more secure version of WordPress. Some websites will update automatically, others will need to be updated manually.
To check to see if your website is running the most recent version of WordPress, login to your dashboard as an administrator, go to “Updates”, and read the messages listed.
As always, if you have any questions please don’t hesitate to contact us.