Release Notes

Simple Injector can be downloaded using NuGet.

The most prominent improvements in this release are:

• Core library:
  • Support for using ReadOnlyCollection<T> in the core library.
  • The container's Lifestyle Mismatch verification behavior can now be set to a less strict model allowing Transient dependencies to be injected into Scoped consumers using the Container.Options.UseLoosenedLifestyleMismatchBehavior configuration switch.
• ASP.NET Core integration:
  • The container is now automatically disposed on web application shutdown, unless overridden using services.AddSimpleInjector(container, options => { options.DisposeContainerWithServiceProvider = false; }).
  • Scoped IAsyncDisposable components, created by Simple Injector during the course of a web request, will now be automatically, and asynchronously disposed.

Improvements

Simple Injector core library

• #762 Support for resolving and injecting ReadOnlyCollection<T> collections added
• #781 Reports existing interface registrations when Options.ResolveUnregisteredConcreteTypes is false
• #793 Added option to loosen the Lifestyle Mismatch verification behavior.

ServiceCollection Integration package

• #787 The Container instance is now automatically appended to the IServiceCollection to simplify some integration scenarios.

ASP.NET Core Integration packages

• #763 Allow Simple Injector container to be automatically disposed when integrated into ASP.NET Core
• #778 Added support for IAsyncDisposable. The ASP.NET Core integration package will now automatically do asynchronous disposal of scoped IAsyncDisposable dependencies within the context of a web request.
• #730 Fixed an invalid message in an ObsoleteAttribute
• #794 Some obsoleted messages are now marked with error: true and now cause compile errors.

The following class members are now marked obsolete:

• SimpleInjectorAspNetCoreMvcIntegrationExtensions.RegisterMvcControllers(Container, IApplicationBuilder)
• SimpleInjectorAspNetCoreMvcIntegrationExtensions.RegisterMvcViewComponents(Container, IApplicationBuilder)
• SimpleInjectorAspNetCoreMvcIntegrationExtensions.RegisterMvcViewComponents(Container, IViewComponentDescriptorProvider)
• SimpleInjectorAspNetCoreMvcIntegrationExtensions.AddSimpleInjectorTagHelperActivation
• SimpleInjectorAspNetCoreMvcIntegrationExtensions.RegisterPageModels
• SimpleInjectorAspNetIntegrationExtensions.EnableSimpleInjectorCrossWiring(IServiceCollection, Container)
• SimpleInjectorAspNetIntegrationExtensions.CrossWire<TService>(Container, IApplicationBuilder)
• SimpleInjectorAspNetIntegrationExtensions.CrossWire(Container, Type, IApplicationBuilder)
• SimpleInjectorAspNetIntegrationExtensions.AutoCrossWireAspNetComponents(Container, IApplicationBuilder)
• SimpleInjectorAspNetIntegrationExtensions.AutoCrossWireAspNetComponents(Container, IServiceProvider)
• SimpleInjectorUseOptionsAspNetCoreExtensions.UseMiddleware<TMiddleware>(SimpleInjectorUseOptions, IApplicationBuilder)
• SimpleInjectorUseOptionsAspNetCoreExtensions. UseMiddleware(SimpleInjectorUseOptions, Type, IApplicationBuilder)