On July 10, KDE officially announced the immediate availability for download and testing of the first Beta release of the upcoming KDE Software Compilation 4.14 graphical desktop environment.KDE SC 4.14 Beta 1 comes with several new features and assorted bug fixes, all in order to keep the current branch of the most modern and productive Linux desktop environment stable and reliable. When it is released, KDE 4.14 will replace KDE SC 4.13.
“Today KDE released the beta of the new versions of Applications and Development Platform. With API, dependency and feature freezes in place, the KDE team's focus is now on fixing bugs and further polishing.”
“With the large number of changes, the 4.14 releases need a thorough testing in order to maintain and improve the quality and user experience. Actual users are critical to maintaining high KDE quality, because developers simply cannot test every possible configuration,” was stated in the official announcement.
You can download KDE Software Compilation 4.14 Beta 1 source packages right now from Softpedia. However, please note that you must manually configure, compile, and install each one of them on a testing machine in order to get a running instance of KDE Software Compilation 4.14, so it is better to get it from an official or third-party software repository for your Linux distribution or wait for the final release.