The KDE community has released new version 4.12 on December 18, 2013. This release of KDE Platform has been released with few bugfixes and minor optimizations and features. About 20 bug fixes as well as several optimizations have been made to various subsystems of KDE.
Changes in KDE 4.12
1. Kate the most advanced Linux graphical text editor has again received work on code completion. Kate also gets initial Vim macro support.
2. Okular the document viewer is now has support of audio and video for epub.
3. KWebKit adds the ability for matching resolution automatically by scaling content.
4. Privacy guard KGpg now shows more information to users and KWalletManager.
5. KMail is now having support of AdBlock (when HTML is enabled) to improve scam detection by extending shortened URLs.
To Read more about KDE 4.12 use following links.
http://www.omgubuntu.co.uk/2013/12/kde-4-12-released
http://kde.org/announcements/4.12/applications.php
Downlaod Source Code of KDE 4.12
For developers the complete source code for KDE SC 4.12.0 is freely available here for download.