I have an old version license for version 5.38. Is it possible to upgrade the version with that license?
Versions 5.3 and 5.8 are more than 6 years old and most likely will not work with this tutorial sample code. It's also not recommended to use an unsupported version in production.
If you want to make your license up-to-date please contact firstname.lastname@example.org (don't forget to include your order number) to see the upgrade options.