Sony has release a new software update for two of its handsets, the Sony Xperia X Performance and the Xperia XZ.
The software update for the Sony Xperia X Performance and the Xperia XZ includes Google’s security update for their Android OS for July.
The Android security patch fixes a range of vulnerabilities in Google’s Android OS and it is now available as an over the air update for both handsets.
You can check to see if the July Android security patch is available for your Sony Xperia X Performance or Xperia XZ from the settings menu on your device.
Source Xperia Blog