Most of the international smartphone brands like Samsung, LG, Motorola, OnePlus, and HTC are already working on pushing out Android 5.0 Lollipop updates for their high-end and mid-range smartphones. Now, even Sony has confirmed that it will roll out the latest version of Android to its high-end smartphones from the Xperia Z2 and the Xperia Z3 lineup in early 2015. This line-up includes the Xperia Z3, Xperia Z3 Compact, Xperia Z3 Tablet Compact, Xperia Z2, and the Xperia Z2 Tablet.
@SamTomelleri We’ll start the upgrade at beginning of 2015 for the core Xperia Z3 and Xperia Z2 series.
— Sony Xperia (@sonyxperia) December 17, 2014
Sony has confirmed this through their official Twitter account in reply to a tweet from an Xperia Z3 user asking about the Android 5.0 update. Sony had already confirmed that it will release Android 5.0 Lollipop update to a bunch of Xperia smartphones. There's still no timeline as to when the Xperia Z1 series and Xperia Z series will get the update. HTC, Motorola, LG, and Samsung have already started rolling out the update to their flagship smartphones released this year.