Android 5.1.1 Rolling Out For Older Xperia Z Series

Sony has begun seeding the Android 5.1.1 update to the older generation of Xperia Z series devices. The update list for the devices include the Xperia Z, Xperia ZL, Xperia ZR, Xperia Tablet Z Wi-Fi and Xperia Tablet Z LTE models. Updates for the Xperia Z1 series are expected to roll out after some time.

source: xdadevelopers