Google pixel phones are getting August 2019 Security patch level update, a couple of vulnerability fixes and improvements to the Qualcomm components. Google's pixel update bulletin listed 3 other functional fixes; two of which includes improvements for saving WiFi network configuration, and for WiFi CaptivePortalLogin stability, both updates will be available on all Pixel devices. The 3rd update improves the sleep mode for the latest Pixel 3a and Pixel 3a XL.