That’s kind of a personal choice I typically find myself updating as soon as possible as the firmware addresses known bugs however as beta it could still present a few new ones. But it is been out for over a month now in beta and they’ve captured a few items but overall aside from the ramp speed which can be adjusted down to 1,000 it’s pretty stable.
Of course I say that and you have to do what feels best for you you can always revert back to 1.0.5 later if you choose.