WordPress 4.5 has been released. See here and here (core dev blog). Additional resources: three great posts on WordPress 4.5 Coleman 4.5 OMG WTF post WP Tavern post WPbeginner post WP Codex post
In a few hours WP 4.5 will be released. A few additional resources: how to add a custom logo; REST API are planned to go with the 4.7 release. Great post for non-programmers from Petya Rajkovska, here; WP 4.5 highlights.