Owners of the flagship Sony Xperia Z1 and Z Ultra will be delighted to learn that their devices might go straight to Android 4.4 KitKat in the end of January/beginning of February timeframe, insiders have indicated...
Source: http://www.phonearena.com/news/Sony-Xperia-Z1-and-Z-Ultra-might-go-directly-to-KitKat-in-January-Xperia-Z-ZR-ZL-getting-Android-4.3-first_id49136
Source: http://www.phonearena.com/news/Sony-Xperia-Z1-and-Z-Ultra-might-go-directly-to-KitKat-in-January-Xperia-Z-ZR-ZL-getting-Android-4.3-first_id49136