We found this article about the latest WordPress release, WordPress 4.4.1, which was released today.
WordPress Releases WordPress 4.4.1, Strongly Recommends Users Update Immediately
Latest version of WordPress software fixes 52 bugs and patches a vulnerability that could let sites be compromised.
WordPress is strongly encouraging users of its self-hosted software to upgrade immediately to version 4.4.1, which was released on Wednesday. From the announcement:
This is a security release for all previous versions and we strongly encourage you to update your sites immediately. WordPress versions 4.4 and earlier are affected by a cross-site scripting vulnerability that could allow a site to be compromised.
The update also includes 52 bug fixes, WordPress says, and offers an update that includes the latest diverse emoji.