WordPress 4.5.1 shipped yesterday, an incremental maintenance release. Co-led by me—with commits from our Director of Platform Experience Helen Hou-Sandí—this release fixes 12 bugs found in the last release of WordPress, chief among them a Twenty Eleven theme singular class issue, visual editor incompatibility in certain versions of Chrome, and a media upload issue with the Imagick extension. For more information see the Codex release notes or consult the list of version controlled changes.