well - as 2.0.22 was released yesterday evening at 5.20pm give us a chance!!!! ;)
but VM says
Improvements and fixes for 2.0.22
Everything else should work as before. No special action need. The new features like fancybox and chosen js are deactivated after updating. Go to the vm config and try it, it depends on your template and used js if it makes sense for you. There are also new settings to define the orderstatus to send the emails. You should check after the update if it fits for you. Furthermore there is a slightly change in the cart view. The Coupon is using no extra sign anylonger. So check how your coupons look in the cart.
so shouldn't be any problems ..
if they are we will of course fix them
Cheers