Demonstrate dataAnnotations:dataTypeAttribute:disableRegEx change
With .Net Framework 4.7.2 the default for app setting dataAnnotations:dataTypeAttribute:disableRegEx changed to true, which enforces users of EmailAddressAttribute, UrlAttribute and PhoneAttribute to mitigate the less accurate validation without the previously used regular expressions.
With .Net Core the possibilty to change the behaviour with an app setting was removed at all.
See https://docs.microsoft.com/en-us/dotnet/framework/migration-guide/runtime/4.7.1-4.7.2 and dotnet/dotnet-api-docs#1201 for reference.