Version 4.6 of WordPress was named “Pepper” in honor of jazz baritone saxophonist Park Frederick “Pepper” Adams III.
WordPress 4.6 “Pepper” features include:
You can stay on the same page while you update, install, and delete your plugins and themes.
The WordPress dashboard takes advantage of the installed fonts making it load faster and letting you feel familiar on whatever device you are.
WordPress saves your content to the browser as you type.
The HTTP API now leverages the Requests library, improving HTTP standard support and adding case-insensitive headers, parallel HTTP requests, and support for Internationalized Domain Names.
Meta Registration API
The Meta Registration API has been expanded to support types, descriptions, and REST API visibility.
On Demand Translations
WordPress will install and use the newest language packs for your plugins and themes.
Masonry 3.3.2, imagesLoaded 3.2.0, MediaElement.js 2.22.0, TinyMCE 4.4.1, and Backbone.js 1.3.3 are bundled.
Customizer APIs for Setting Validation and Notifications
Settings now have an API for enforcing validation constraints. Customizer controls now support notifications, which are used to display validation errors.
Cached and comprehensive site queries improve your network admin experience. The addition of WP_Site_Query and WP_Network_Query help craft advanced queries with less effort.