Nokia ONT XS-010X-Q vs. XS-010X-R

Apparently, there is a new version of ONT that is being provided now. I checked, and the ONT which the BHell technician delivered to me in October 2024 was the Nokia XS-010X-Q. What is different/improved for the newer model (XS-010X-R)? These are the differences noted from the data sheets:

• Type-B protection for -R; feature not listed for -Q
• Regulatory Compliance:
  • -Q: FCC compliant, UL 60950-1, CE Mark
  • -R: CE, UKCA

I am not sure what Type-B protection means. Any ideas? And is it important to have?

Is the newer version better, has other additional features, or it is more robust/stable?