Sony has now started to roll the Android 4.4.4 KitKat update for the LTE variants of the Xperia E3. Build number 18.5.C.0.19 has been released across a number of regions for the D2203 model including the UK, France, Greece, Hong Kong, Italy, Philippines, Nordics, Australia and India.
The D2206 model number has seen the update roll to generic firmware in the US and Latin America. We noticed that the update has not hit Brazil so far (model number D2243), but it shouldn’t be too far behind. If you have updated, let us know how you are finding the latest firmware in the comments below.