Share your experience!
i tweeted xperia if 4.4 will come to xperia E, this was their reply
I would like to ask that when will the Android 4.3 (Jelly Bean) Sony Xperia these away, because the current Android 4.1 is quite slow, I do not know it's just me, but You mind, I think it is time to issue the Android 3.4 the phone, I look forward very much, Hi Marci
Sorry, I do not know English so well, I did this by Google Translate. 
Dear Sony,
If you are reading this I really think that you should concern that lower end smartphones get Android 4.4 Kitkat because, as Google announced, 4.4 is a much less spec hungry. It doesn't really matter for the high end phones you make because they don't have any speed issues at all because belive me, the low end phones do. I own a Xperia E, and I have tried everything to speed it up --> I reseted the phone twice since I got it, i clear my cache every day, I use nova launcher, I optimise my data base regulary , I stick to the youtube tips and forums about speeding it up (for example not using widgets or speed up the animations etc.) and still nothing, so I think you shold concider on updating the low end phones to ANDROID 4.4. Thanks very much in advance and PLEASE CONCIDER IT !

Xperia E got the latest update Google Android 4.1 (Jelly Bean) and build no: 11.3.A.2.23 on 2013-09-02
when will xperia E dual will get the software update?
When will xperia E dual get the 4.3 update??