I personally not see any new in this update regarding new features and new options The new thing we see in first look is new and updated apps of google in app drawer. i.e. Updated playstore, hangouts (replacing google talk), Play Magazines, Google Settings, Play Movies, Play Games, Play Books, Google+. And also a new Build Number 11.3.A.2.33. (Previous 11.3.A.2.23)
How To update Sony Xperia E (who don't know how to)
1.There are two options to update XE i.e. using PC Companion and Sony update service.
2.Just Follow onscreen options/instructions to update XE in these softwares.
You can Easily get these softwares from Sony official site or simply search google.
Note: 1.You must have proper drivers install in your PC to update XE using these two sony softwares.
2.You can also go to nearby Sony Service Center to update your device.