Among the changes you can find in KDE 4.13 today include:
- KDE's Kate text editor now has improved C++ syntax highlighting with some C++11 and C++1y/C++14 feature support, an improved build plugin, code completion for the D programming language, and a new predictive C++ indenter.
- Artikulate as a new KDE application for pronunciation training.
- KNotes has been ported to Akonadi.
- The StorageServiceManager allows you to manage storage services like DropBox and YouSendIt.
- Many updates to the Palapeli game.
- Support for RAW camera image files within Gwenview.
- Baloo replaces Nepomuk.
You can find out more details on the KDE 4.13 changes via the KDE.org Techbase. As of writing the press release hasn't yet been announced at KDE.org but it should be appearing there shortly.