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Breaking changes to Microsoft.AspNetCore.App in 3.0 #325
This change is one of several which were announced earlier today on the ASP.NET blog.
Starting in 3.0, the ASP.NET Core shared framework (
As part of this change, some notable breaking changes will be made in Microsoft.AspNetCore.App 3.0.
Removal of some sub-components
As part of this change, some notable sub-components will be removed from the ASP.NET Core shared framework in 3.0:
Entity Framework Core will ship as “pure” NuGet packages in 3.0. This makes its shipping model the same as all other data access libraries on .NET, and allows it the simplest path to continue innovation while providing support for all the various .NET platforms customers enjoy it on today. Note, Entity Framework Core moving out of the shared framework has no impact on its status as a Microsoft developed, supported, and serviceable library, and it will continue to be covered by the .NET Core support policy.
Json.NET or Entity Framework Core will continue to work with ASP.NET Core, but they will not be "in the box" with the shared framework.
See "The future of JSON in .NET Core 3.0" for details on our plans to remove the dependency from ASP.NET Core to Json.NET and replace it with high-performance JSON APIs.
We have separately posted a complete list of exact binaries that are being removed. This list may fluctuate as we continue to work on ASP.NET Core 3.0.
Removal of the PackageReference to Microsoft.AspNetCore.App
Starting in ASP.NET Core 3.0, references to Microsoft.AspNetCore.App will no longer be a
See aspnet/AspNetCore#3612 for more details.
Reducing the duplication between NuGet packages and shared frameworks
As result these changes, it will not be necessary for projects to consume assemblies in Microsoft.AspNetCore.App as NuGet packages. To simplify the way in which consumers target and use the ASP.NET Core shared framework, we will stop producing many of the NuGet packages that we have been shipping since ASP.NET Core 1.0. The API those packages provide are still available to apps by using a
This will not apply to all binaries that are pulled in via Microsoft.AspNetCore.App in 2.x. Notable exceptions include:
For more details, see the complete list of packages that will only be obsolete in favor of
See the blog post from earlier today for more details on the motivation for this change.
You can use aspnet/AspNetCore#3757 for discussion.