There are some small, but significant changes to the ways in which those two features will work in 12.4.
On the vision-based attention monitoring, you no longer need to be holding the steering wheel as long as:
- the camera is not occluded
- there is sufficient lighting
- the driver is looking forward
- the driver is not wearing sunglasses
- the driver is not wearing a low-brim hat or another object that covers their eyes
And on Autopilot suspension, strikes will expire after 7 days, unless another strike is earned during that week at which point the 7 day timer starts over again.