Yes that’s correct, the firmware update is to provide haptic feedback by modulating the motor to cause vibration. It sounds like a great idea, hopefully it works well.
If this is such an innovative and important feature, there is no reasonable way to explain why it took the company so long to release it.
Here’s the announce copy from their email on the update:
“Today we're releasing an innovative new safety feature called "Haptic Buzz". Haptic Buzz is an audible and tacti e alert that riders hear and feel when nearing the operational limits of the board. Haptic Buzz provides riders with additional feedback that is immediate and intuitive so they can ride with more confidence than ever.”
If you have more technical details I’m interested to understand how it works. In the distant past I started my career in a power electronics research lab, building motor drive systems among other things, so a deep dive into HapticBuzz would be amazing.