Small firmware updates has been certified by the PTCRB for the Sony Xperia E4g series. The Xperia E4g certification will see it move from 25.0.A.2.14 to build number 25.0.A.2.29. The Xperia E4g Dual certification will see it move from 25.0.B.2.14 to build number 25.0.B.2.29. We would expect small bug fixes and hopefully a patch for the Stagefright exploit.
Firmware build 25.0.A.2.29 certified for Xperia E4g
Firmware build 25.0.B.2.29 certified for Xperia E4g Dual
