License and back versions

I have the Aspose.Total.NET license and use several of the packages. I have the license file in the executable directory. I have upgraded some of the packages to the later releases and have updated the license file. But recently, I am getting errors about the license not being valid for older packages. For example, I was using Email.NET for version 6.1 and received the error. When I upgrade the license, is it important to upgrade all of the packages as well or how far back does the license still apply.

Thank you,
Jeff

Hi Jeff,

Can you please share your license files (new and old) for further investigation? You can follow the instructions from how to send a license file.

Normally, new licenses do not work with older releases. You can keep using your old license if you want to keep using older versions of some packages and use your new license with the latest versions.

Best Regards,