· Kwin optimizations;
· Adaptive power management, integrated with Activities;
· New QtQuick-based Plasma widgets;
· Ability to choose the layout of Plasma's Alt-Tab window switcher;
· Shared password storage was implemented in KSecretService;
· A new splash screen implementation using QtQuick;
· Improved on-screen keyboard;
· Better taskbars and docks with improved support for launchers and nicer context menus;
· Revamped device notifier widget;
· New picture-of-the-day wallpaper plugin;
· Dolphin got a lot faster and more prettier;
· Gwenview offers improved image viewing abilities and better usability;
· Okular has advanced text selection features;
· KMail received lots of performance improvements and bug fixes;
· Kate features a new Search & Replace plugin, a new editor, useful indicators, and more;
· Cantor received support for Scilab and Qalculate;
· Lokalize has better support for XLIFF (XML Localisation Interchange File Format) translation catalogs and TBX (TermBase eXchange) glossaries;
· Marble is now integrated with Plasma's KRunner;
· QtQuick was integrated in Plasma Workspaces allowing developers to easily port widget to QML;
· New Plasma QtQuick components provides standardized user interface elements;
· KDE Telepathy enters KDE Extragear.
