From the release notes, it provides the following fixes:

• Fixed an issue that sometimes caused a device to crash or restart unexpectedly.
• Fixed an issue that sometimes caused a device to crash or restart unexpectedly while updating apps after the device was flashed.
• Fixed issues that caused a device to display a blank, black screen after booting from flash.
• Fixed an issue that caused a device to crash and display a blank, black screen after switching to a secondary user.
• Fixed issues when always-on display mode was enabled that interfered with the "Double tap to wake" gesture and prevented the device from unlocking if the user tried to use their fingerprint to unlock the device.
• Fixed an issue that sometimes caused battery information to not display correctly in the system settings, status bar, and on the lock screen.
• Fixed issues that prevented device-to-device transfers and backup and restore from working.
• Fixed various issues that were impacting system stability, performance, and camera.

The new beta targets the following devices:

• Pixel 5a;
• Pixel 6 and 6 Pro;
• Pixel 6a;
• Pixel 7 and 7 Pro;
• Pixel 7a;
• Pixel Fold;
• Pixel Tablet;
• Pixel 8 and 8 Pro.