A new firmware version with build number 23.0.1.A.3.12 has been certified for the Xperia Z2 (D6503 variant only) and Xperia Z2 Tablet (SGP521 only). This is likely to be a small bug-fix update destined for carriers only. The last such update was build number 23.0.1.A.3.9 that only hit Orange/T-Mobile carriers in Europe along with O2 Germany. The last global update remains build number 23.0.1.A.0.167. We’ll let you know once this new update starts to roll and whether it sees a more global release.
Xperia Z2 build number 23.0.1.A.3.12 certified for D6503 variant
Xperia Z2 Tablet build number 23.0.1.A.3.12 certified for SGP521 variant