The third release candidate for WordPress 4.9 is now available.
A release candidate (RC) means we think we’re done, but with millions of users and thousands of plugins and themes, it’s possible we’ve missed something. In fact, we did miss some things in RC1 and RC2. This third release candidate was not originally scheduled, but due a number of defects uncovered through your testing of RC2 (thank you!), we are putting out another 4.9 release candidate.