Moq has recently introduced a payload named SponsorLink which takes PII (your email address) to send to a third party server for remote verification.
This kind of suspicious data harvesting is simply unacceptable, and the developers have now destroyed all credibility and trust with their user base. This change replaces Moq with NSubstitute.
For further information, see:
https://github.com/moq/moq/issues/1372
I believe these properties to be the cause of an issue with symbol verification when publishing X10D to nuget.org. I will report with status after this nightly run.
NB: While using a higher C# version with lower framework version is possible, it's generally advised against because C# syntax may map to .NET types not available in older versions such as .NET Standard 2.1.
This change does not invite the codebase to upgrade to newer types, but rather take advantage of syntax sugar (such as file-scoped namespaces, when this project was updated to C# 10) that does not effect the compiled result.
However, this change does open up the possibilities to add extension methods for the "generic math" interfaces (made possible by static interface members), and these upcoming methods will be targeted to .NET 7 or greater **ONLY**.
