Sony Mobile has rolled another firmware update from the build number 23.4.A.1.232 for the Xperia Z2 and Z3 series that brings a full fix for the stagefright exploit. So this will replace the previous firmware build 23.4.A.1.200 from the new build 23.4.A.1.232. We could find any other changes and as always there are bug fixes and performance enhancements.
The update is live for Xperia Z2, Xperia Z3, Xperia Z3 Dual, Xperia Z3 Compact and Xperia Z3 Tablet Compact in many regions. But Xperia Z2 Tablet has not seen a firmware update at the time. But it will arrive shortly.