Google rolled out two updates for Pixel devices this week.

Pixel users received a second October update and a new QPR Beta release.
Google has not yet publicly announced the second update. Verizon has shared information about it, stating that the update "provides performance improvements for your device." While older Pixel phones are still receiving updates, Pixel 6 series owners are hoping to receive similar performance enhancements.
It is possible that differences in the Tensor application processor might prevent the Pixel 6 line from getting the update. Pixel 6 and Pixel 6 Pro users were early adopters of the new Pixel vision and dealt with issues like a subpar modem and fingerprint sensor, which were later improved.
The update can be installed via Settings > System > Software update. The download size is about 30MB. Since Google hasn't posted about the update, specific features or bug fixes are unknown. The update's timing is noteworthy, appearing on the last day of October, with the November update approaching.
Google also released an additional Pixel update this week that includes the Pixel 6 line. Android 16 QPR2 Beta 3.2 is available for a range of Pixel devices. This update, intended for those in the Android 16 QPR2 Beta program, enhances device stability. It's version BP41.250916.012 for Pixel 6, Pixel 6 Pro, and Pixel 6a, and version BP41.250916.012.A1 for other compatible devices.
Android 16 QPR2 is the upcoming December Pixel Feature drop, expected in December. Once the stable version of Android 16 QPR2 is released, Beta users can leave the program without needing to wipe their devices. Opt-out before installing the next Beta update, which will be Android 16 QPR3 Beta 1.
To opt out of the Beta program, wait for the stable Android 16 QPR3 release. Visit www.google.com/android/beta and select "View your eligible devices." Find your Pixel model and click "Opt out" to receive a special "No Data Wipe" update. Install it to return to the stable Android version. You can rejoin the Beta program by installing a Beta update at any time.