WordPress 4.0 comes with a new and improved media library. Users will now be able to see their uploads in a nice grid layout with infinite scroll. This new layout is much faster and allows you to quickly search, browse, and edit media files.
Clicking on an item in the media library opens it in a popup window where you can add image caption, alt text, title, and description. Users can also use arrow keys on their keyboards to browse images or use esc key to close the popup.
