Google’s Project Mainline is an innovative tech that allows the company to send security updates to devices powered by Android Q via the Play Store itself. Right now, some Pixel users are seeing just that.
The Mainline update’s size tends to differ from device to device, as the user with Pixel 2 XL is getting a 17MB update while another (unknown model) Pixel user got a 39MB patch.
It could be August security patch, something that OnePlus already beat Google to with its OxygenOS 9.5.11 update for OnePlus 7 Pro. Update: The update did install August security patch for one user, but another user is still on July security patch.
Let us know if you get a Mainline update on your Android Q-running Pixel phone and what changes do you get.