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The"Asp" project, more formally known as ASP.NET API Versioning, gives you a powerful, but easy-to-use method foradding API versioning semantics to your new and existing REST services built with ASP.NET. The API versioning extensionsdefine simple metadata attributes and conventions that you use to describe which API versions are implemented by yourservices. You don't need to learn any new routing concepts or change the way you implement your services in ASP.NET today.

The default API versioning configuration is compliant with theversioning semanticsoutlined by theMicrosoft REST Guidelines. There are also a numberof customization and extension points available to support transitioning services that may not have supported APIversioning in the past or supported API versioning with semantics that are different from theMicrosoft REST versioning guidelines.

The supported flavors of ASP.NET are:

• ASP.NET Core

  Adds API versioning to your ASP.NET CoreMinimal API applications

  

• ASP.NET Core MVC

  Adds API versioning to your ASP.NET Core MVC (Core) applications

  

• ASP.NET Core and OData

  Adds API versioning to your ASP.NET Core applications using OData v4.0

  

• ASP.NET Web API

  Adds API versioning to your Web API applications

  

• ASP.NET Web API and OData

  Adds API versioning to your Web API applications using OData v4.0

  

This is also the home of the ASP.NET API versioning API explorers that you can use to easily document your REST APIs with OpenAPI:

• ASP.NET Core Versioned API Explorer

  Adds additional API explorer support to your ASP.NET Core applications

  

• ASP.NET Core with OData API Explorer

  Adds additional API explorer support to your ASP.NET Core applications using OData v4.0

  

• ASP.NET Web API Versioned API Explorer

  Replaces the default API explorer in your Web API applications

  

• ASP.NET Web API with OData API Explorer

  Adds an API explorer to your Web API applications using OData v4.0

  

The client-side libraries make it simple to create API version-aware HTTP clients.

• HTTP Client API Versioning Extensions

  Adds API versioning support to HTTP clients

  

You can find additional examples, documentation, and getting started instructions in thewiki.

Have a general question, suggestion, or other feedback? Check out how you cancontribute.

This project has adopted the code of conduct defined by the Contributor Covenant to clarify expected behavior in our community.For more information see the.NET Foundation Code of Conduct.

This project is licensed under theMIT license.

This project is supported by the.NET Foundation.

If you are an existing user, please makes sure you review therelease notes between all major and minor package releases.