Z170x Gaming 3 (rev1.0) - ok to upgrade from BIOS F20 to F21b?

[Globespy]

I guess I've been lucky not to have too many issues wtih F20 but my PC is definitely a little strange and figured I'd move off F20 before anything else happens.
I see there's a version F21b (Z170XGaming3.21b) for my board?
Is it a good BIOS or should I try to go back to F8?
Thanks.

[Globespy]

Re: Z170x Gaming 3 (rev1.0) - ok to upgrade from BIOS F20 to F21b?

Bump.
Anyone?