The PTCRB has certified new firmware updates for Sony’s 2015 budget handsets the Xperia E4 and Xperia E4g. The Xperia E4 has seen build number 24.0.A.5.14 certified, whilst the Xperia E4 Dual has seen version 24.0.B.5.14 certified.
The 4G-enabled Xperia E4g has seen build number 25.0.A.2.14 certified with the Xperia E4g Dual seeing version 25.0.B.2.14 certified. The last certified version for these models have not been released so far, so hopefully these new updates will see the light of day.