com.unity.xr.arkit 3.0.0-preview.3 Package Notes

Exclude tvOS as a supported platform.
The "match frame rate" option could incorrectly cause execution to be blocked while waiting for a new frame, leading to long frame times. This has been fixed.
The "match frame rate" option did not account for thermal throttling, which can put ARKit into a 30 frames per second update mode while Unity would keep trying to update at 60 frames per second. This could lead to visual artifacts like judder. The calculated frame rate now takes the thermal state into account and will do a better job matching ARKit's update rate.

com.unity.xr.arkit 3.0.0-preview.3