Sony has made the decision to pull the plug on three of its phones – the Xperia M (and M Dual), Xperia L and Xperia SP will not be updated anymore, leaving them at the current latest software version.
For the Xperia M, Xperia M Dual and Xperia L that's Android 4.3 Jelly Bean, which was released in the first quarter of this year.
The Sony Xperia L will be left a step behind that, Android 4.2 Jelly Bean, which was released in October last year.
All three Xperia models have a gig of RAM and two Krait cores so they should be able to run KitKat quite fine. For that you'll have to go the unofficial route though, CyanogenMod has nightlies for CM11 for them.
If you're curious about the state of the software of your Xperia smartphone, you can check the Xperia care site.
Use TowelRoot to root your phone,it wont affect your warranty but will give you full access of the phone. You can remove Sony bloated apps like sony tv etc etc.
My father have Sony Xperia L. It is a good phone. The bad thing is that cannot upgrade to kitkat. I have a z3 and I can upgrade to lollipop 5.1.1 but I like kitkat 4.4.4 it works fast and smooth...
Samsung is way better than any other phone right now. And yes samsung does have updates so im not sure where you are getting your info. I have tried apple, samsung, sony, htc, and blackberry. Samsung was by far the best. Plus I work for rogers and kn...