This Update is available Via OTA (over-the-air). If your Xperia XZ/ XZs/X Performance is not rooted or its bootloader is locked then you may have already received the update as an OTA. To manually check, Go To Settings > About Phone >System Update. But if your Xperia XZ/ XZs/X Performance is rooted or its bootloader is locked, then you have to manually Flash / Install Android 8.0 On Xperia XZ/ XZs/X Performance. Other than this, it should be noted that the latest update comes with the May 1st, 2018 security patch which is the latest security patch released by Google. Note that if you haven’t received the update, you will get the May 2018 Security Update 41.3.A.2.128 OTA update on your Xperia devices in the coming days. There are two types of Android Software Updates 1) Major Updates like Newer Android Versions Oreo 2) Incremental Updates (Security Patch Updates). Security patch updates are very important for Android devices as they come with many fixes of security issues which keep the device safe from malware attacks.
The update brings some bug fixes which were present in the previous build. Along with the minor fixes, It also brings stability and performance improvements. Thus, you should download and install the update to your Xperia XZ/ XZs/X Performance. Via xperiablog
