WordPress 4.6 Release Candidate (RC) has been made available for download.
After making some few refinements to the beta released a week ago, WordPress 4.6 Beta, the core development, led by Dominik Schilling, made this public.
Making the RC public means the core development are nearly done with WordPress 4.6 but with millions of users and thousands of themes and plugins, they’re aware of the possibility that something might have been missed. So they’re asking WordPress users all over to test 4.6.
Developers are asked to test their plugins and themes against WordPress 4.6 and update your plugin’s Tested up to version in the read me to 4.6. If you find compatibility problems please be sure to post to the support forums so the team can figure those out before the final release.
Be sure to read the in-depth field guide, a post focused on changes that take place under the hood.