I'll straddle:
It depends.
If you have 3 'go to' amps, simple presets that are all that you use for gigging, I'd say there is no reason NOT to upgrade. If you have controller's galore, and custom scene levels out the wing-wang, then it's not worth the stress and effort to get it right before an important gig. If you decide to upgrade: back up EVERYTHING. Once you upgrade, go through every permutation of what you might do on stage to stress test it (which is what you should do even if it didn't have 'beta' in the title.)
IMO 3 days is plenty of time to get things right. If you don't make significant progress in the 1st hour with it, then roll back, restore presets, and no harm done.
R