Clarify difference between .NET 6 and .NET 7

[gewarren]

Creating this issue based on dotnet/docs#35007 (comment). It's not clear on this page that in .NET 6, non-nullable properties on generic types aren't implicitly required, but in .NET 7, they are. The https://learn.microsoft.com/en-us/aspnet/core/mvc/models/validation?view=aspnetcore-6.0#non-nullable-properties-on-generic-types-and-required-attribute section simply disappears from the page if you change the moniker from .NET 6 to .NET 7.

The OP feels that this is a breaking change, and if so, there is a different process to follow as well.

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Document Details

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• ID: 0156ffc3-47ac-d5da-fbc2-9ff5018b071b
• Version Independent ID: 615db388-a244-41f7-21b5-a4085d9ed479
• Content: Model validation in ASP.NET Core MVC
• Content Source: aspnetcore/mvc/models/validation.md
• Product: aspnet-core
• Technology: aspnetcore-mvc
• GitHub Login: @Rick-Anderson
• Microsoft Alias: riande

[johnkors]

An ASP.NET Core API with an affected endpoint cannot be upgraded from ASP.NET 6 to ASP.NET 7 without changing something in the code base. Doing nothing will break the contract between a client and our ASP.NET Core API.

[Rick-Anderson]

Thank you for contacting us. Due to a lack of activity on this discussion issue we're closing it in an effort to keep our backlog manageable. If you believe there is a concern which hasn't been addressed, please file a new issue.