The update should include all the standard KitKat features and improvements — faster / smoother performance, white status bar icons, wireless printing support, full - screen album art and a new camera shortcut on the lock screen, options to select the default home and SMS apps, enhanced sound controls for specific Samsung apps, and general stability improvements. (sammobile.com)
Here's the official patch notes: Various fixes for improving general stability Fixed various random deadlocks (the so called «sound loop crash») Fixed -LSB-...] (wolfsgamingblog.com)
Despite the prediction of general stability there remains a risk that prices could spike or slump again. (dairyreporter.com)