Google has started rolling out new over-the-air (OTA) update for Pixel and Nexus devices and also posted factory images as part of monthly Android Security release. The update for this month also includes functional improvements for both Pixel 2 and Pixel 2 XL smartphones.
Functional improvements for Pixel 2 and Pixel 2 XL in March 2018 security update
Improve screen wake performance with fingerprint unlock (Pixel 2 and Pixel 2 XL)
Improve audio performance when recording video (Pixel 2 XL)
Improve crash reporting (Pixel 2 and Pixel 2 XL)
New builds for the Pixel and Nexus devices with March 2018 Android Security update:
Pixel, Pixel XL, Pixel 2 and Pixel 2 XL (OPM1.171019.021)
Nexus 6P and Nexus 5X (OPM3.171019.016 and OPM5.171019.017)
Pixel C has not received the latest security update yet.