Added new text style support, it will now use span elements internally instead of font elements.
Added new improved support for the theme_advanced_font_sizes option, check the Wiki for details.
Added new keep_style setting that maintains the text style on return/enter on non IE browsers, enabled by default.
Added new onBeforeSetContent/onBeforeGetContent/onSetContent/onGetContent events to the Selection class.
Added new selectByIndex method to ListBox class. This enables you to select list items by an index instead of a value.
Added new possibility to the select method of the ListBox class. This can now have a selector function as it's value argument.
Added new possibility to skip the loading of popups css by setting the feature popup_css to the value false.
Added new possibility to skip translation of popups by setting the translate_i18n feature to false.
Added new element_format option enables you to produce HTML element endings instead of XHTML. But we are still in the XHTML is better camp.