The latest version of WordPress named “Smith” was released yesterday which brings us another round of core changes. This time, the team worked mainly on the back-end editing and admin functions, such as a big TinyMCE (visual editor) update, gallery previews, media playlists, an improved widget UI and live theme previews (only to mention a few). Here’s what you need to know about the major changes in WordPress 3.9.
While the old widget interface set the standard for drag and drop UI when it was introduced, it was time for an overhaul. The developer team took the Widget Customizer plugin and essentially built it into the core.