.NET 7: Update What's new in ASP.NET Core 7.0

[Rick-Anderson]

• Preview 1

  • .NET 7: Add sample for Minimal API IFormFile and IFormFileCollection Support #26345
  • IFormFile  #26821
  • IFormFile/IFormFileCollection support for authenticated requests in minimal APIs #26683
  • .NET 7: Add sample for Minimal API Bind the request body as a Stream or PipeReader #26346
  • .NET 7 update required: JSON options configuration #26445
  • .NET 7: Support for nullable models in MVC views and Razor Pages #26569 Is that new to .NET 6 or .NET 7?
  • .NET 7 Use JSON property names in validation errors #26566
  • Improved console output for dotnet watch
  • Configure dotnet watch to always restart for rude edits

• Preview 2

  • Infer API controller action parameters that come from services fixed in What's new in .NET 7 preview /2 #26230
  • sample code: Provide endpoint descriptions and summaries for minimal APIs #26291
  • Binding arrays and StringValues from headers and query strings in minimal APIs Program.cs Bind arrays in What's new #26410
  • .NET 7: Add customizing the cookie consent value #26341

• Preview 3

  • Support for route handler filters in minimal APIs done in: Filters in Minimal API apps
  • .NET 7: Code sample for Improved unit testability for minimal route handlers #26352
  • code #26378: .NET 7: Bind using TryParse in MVC and API Controllers #26423
  • .NET 7: Code for New Results.Stream() overloads #26355
  • Improved HTTP/2 performance when using many streams on a connection #26845
  • New ServerReady event for measuring startup time #26846
  • .NET 7: Document dark mode for developer exception page  #26356

• Preview 4

  • Typed results for minimal APIs
  • HTTP/2 performance improvements
  • .NET 7:Microsoft.AspNetCore.Http.TypedResults #26480
  • OpenAPI improvements for minimal APIs
    • the Microsoft.AspNetCore.OpenApi package
    • OpenAPI improvements for minimal APIs sample code AspNetCore.Docs.Samples#79
    • .NET 7: OpenAPI for minimal APIs #27127
    • Self-describing minimal APIs with IEndpointMetadataProvider and IEndpointParameterMetadataProvider @tdykstra
  • Return multiple result types from minimal APIs #26818 @tdykstra
  • Route groups #26819 @tdykstra
  • Project template option to use Program.Main method instead of top-level statements #26514
  • Rate limiting middleware #26515

• Preview 5

  • .NET 7: dotnet user-jwts #26155
  • Minimal API parameter binding for argument lists #26540

• Preview 6

  • .NET 7: Request decompression middleware #26541
  • .NET 7: Output caching middleware #26542 @tdykstra
  • .NET 7: Kestrel support for WebSockets over HTTP/2 #26545
  • .NET 7: Kestrel performance improvements on high core machines #26546
  • .NET 7: Support for logging additional request headers in W3CLogger #26547

• Preview 7

  • .NET 7: Authentication will use single scheme as DefaultScheme #26682
  • IFormFile/IFormFileCollection support for authenticated requests in minimal APIs #26683
  • .NET 7: New problem details service #26685
  • .NET 7: Diagnostics middleware updates #26686
  • .NET 7: New HttpResults interfaces #26687

• RC1

  • Kestrel full certificate chain improvements #27002
  • HTTP/3 improvements #27003
  • Rate limiting middleware improvements #27005 .NET 7 RC1 improvements to Rate limiting middleware AspNetCore.Docs.Samples#45
  • .NET 7: Add IResults support in MVC docs  #27121
  • .NET 7:Announcing built-in container support for the .NET SDK #26949

• RC2

  • .NET 7: Output caching middleware #26542 @tdykstra

---

Document Details

⚠ Do not edit this section. It is required for docs.microsoft.com ➟ GitHub issue linking.

• ID: ed83a5ff-cb3a-8655-9f9a-a441da52424e
• Version Independent ID: ed83a5ff-cb3a-8655-9f9a-a441da52424e
• Content: What's new in ASP.NET Core 7.0
• Content Source: aspnetcore/release-notes/aspnetcore-7.0.md
• Product: aspnet-core
• Technology: aspnetcore-releasenotes
• GitHub Login: @Rick-Anderson
• Microsoft Alias: riande

---

Associated WorkItem - 33261

[Rick-Anderson]

@martincostello if you look at is:open label:"code help wanted" there are a bunch of samples we're looking for help writing. Grab any that look interesting.

[martincostello]

Happy to do #26345 if the other person doesn't want to as I implemented it in the first place 😃

[JamesNK]

Need to include gRPC JSON transcoding. There was a small section on the preview 4 blog post. This blog post goes into more detail: https://devblogs.microsoft.com/dotnet/announcing-grpc-json-transcoding-for-dotnet/

[Rick-Anderson]

@sammychinedu2ky @fiyazbinhasan new samples to write at is:open label:"code help wanted"

[fiyazbinhasan]

@Rick-Anderson are there any plans to add a section about route groups?
https://devblogs.microsoft.com/dotnet/asp-net-core-updates-in-dotnet-7-preview-4/#route-groups

Maybe in the overview doc
https://docs.microsoft.com/en-us/aspnet/core/fundamentals/minimal-apis?view=aspnetcore-7.0

[Rick-Anderson]

@Rick-Anderson are there any plans to add a section about route groups? https://devblogs.microsoft.com/dotnet/asp-net-core-updates-in-dotnet-7-preview-4/#route-groups

Yes, can you update a sample to add route groups?