Need to install GRBL on a new Arduino, which version should I use? v0.8c?

Need to install GRBL on a new Arduino, which version should I use? v0.8c? v0.9g? or…?
Please point me to the proper hex files.

Excellent, thanks.

Is there a difference between SO2 defaults and SO1 defaults?

I’m taking my SO1 out of “storage”, and need to relearn what I’ve forgotten.

The SO1 used MXL belts, the SO2 uses GT2.

Awe, yes, that rings a bell, I’ll grab source and config similar to my original v0.7d (gasp) settings.

Hmm… no success… shouldn’t I see a new .hex file somewhere when I do the IDE library compile for GRBL?