For more information about this release, head over to the WordPress.org announcement and check out the reviews from Post Status and the Tavern. For more in-depth stuff visit the make/core development blog and for a full list of closed tickets check out the 4.5 milestone on Trac.
All Pressjitsu user nodes have been tested and upgraded to WordPress 4.5. For customers using our Git Deployment Workflow, the update has been pushed to the master branch and deployed to production. If you’re experiencing any issues related to this update, please don’t hesitate to open a support request.