I find that most firmware update is making the phone performance worse. Everytime I experience the battery last shorter, UI is slower and new bloatware installed.
New firmware = pushing you to buy new phone, that's what I think.
Sony also added "move to sd card" option for xperia T3 in its recent update. Good job done. :)
Android KitKat 4.4.4. is stable you can't say this yet for Android 5.0 Lollipop. I want 4.4.4. for my LG L90.
kitkat 4.4.4 has lots of issues..i updated my m2 and im experiencing lots of prob!!!philippines