We have a store running nopCommerce 3.6. Is there a compelling reason to upgrade to 4.0 one step at a time: 3.6 to 3.7 to 3.8 to 3.9 to 4.0? Or should we be able to go directly from 3.6 to 4.0? We have a lot of custom code and I'm thinking that every step along the way will require me to rewrite the customized stuff.
Any advice is appreciated.