With the shipment of the Pixel6 series starting soon, Google now has the latest software update for the devices too. The update will give the handsets all the advertised features, including Magic Eraser.
This software update on the Pixel6 and Pixel6 Pro devices will come with the Build number SD1A.210817.036 and SD1A.210817.036.A8 for Verizon customers.
To access the download for the update, Go to Settings -> System -> System update -> Check for update. Apart from this, many of the key apps were also upgraded with new features and improvements for the Pixel 6 series. So make sure you update all your apps too via. Play Store -> Your Account Icon -> Manage apps & device -> Update all.
Overall, this update might take up until the 28th of October to show up on all the Pixel6 devices in various regions. But chances are, once you get your hands on these new devices, the updates will automatically start after you set up your handset.
via - Google Pixel Community