NiceLabel 10 is built upon NiceLabel 2017 and NiceLabel 2019 and shares the same core components.
NiceLabel 2017 files are fully compatible with NiceLabel 10. You can use all your existing solutions from NiceLabel 2017 without any need for conversion or migration.
NiceLabel 10 brings some changes and improvements. Some functionalities are processed differently than in NiceLabel 2017.
For the complete list of what is new in NiceLabel 10, see Release Notes for V10 and V2019.
For the abstract of what is new in NiceLabel 10, check both kb articles about differences between V10 and V2019.