New Features:

• #16639: The callback parameter in the CKEDITOR.ajax.post method became optional.

Fixed Issues:

• #11064: [Blink, WebKit] Fixed: Cannot select all editor content when a widget or a non-editable element is the first or last element of the content. Also fixes this issue in the Select All plugin.
• #14755: [Blink, WebKit, IE8] Fixed: Browser hangs when a table is inserted in the place of a selected list with an empty last item.
• #16624: Fixed: Improved the Color Button plugin which will now normalize the CSS background property if it only contains a color value. This fixes missing background colors when using Paste from Word.
• #16600: [Blink, WebKit] Fixed: Error thrown occasionally by an uninitialized editable for multiple CKEditor instances on the same page.