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Simple Injector v4.5.0-beta1 Release Notes

Release Date: 2019-03-14 // about 5 years ago

  • 🚀 Release Notes

    🚀 This beta release can be downloaded using NuGet.

    🚀 The most prominent improvements in this release are:

    • The prevention of iteration of injected collections inside constructors of Singleton consumers.
    • The introduction of a ContainerScope that allows access to the singleton Scope.
    • The addition of ASP.NET Core 2.0 Razor Page integration.

    💥 Breaking changes

    Simple Injector core library

    • 💅 #554 Iterating collections with scoped or transient dependencies inside a singleton consumer now causes an exception when resolved or verified to prevent captive dependencies/lifestyle mismatches. A suppression can be added in case the warning is a false positive.
    • #670 AdvancedExtensions.IsVerifying(Container) extension method was made obsolete. You can use the Container.IsVerifying property instead.

    🔋 Features and improvements

    Simple Injector core library

    • 💅 #648 Added information about lifestyles to when the container visualized object graph (both inside the VS debugger and when calling VisualizeObjectGraph). Special thanks to @kwlin for implementing this.
    • 💅 #664 New Container.ContainerScope property allows access to the container-global Scope, which can be used to register objects for disposal and execute delegates when the container is disposed, while allowing to retrieve created disposables, which enables async dispose.
    • #603 New Collection.Append and Collection.AppendInstance overloads added that simplify appending registrations (and instances) to collections.

    📦 ASP.NET Core Integration packages

    • 📦 #572 Added ASP.NET 2.0 Razor Page support to the ASP.NET Core MVC integration package. There is a new SimpleInjectorPageModelActivatorProvider that can be registered and a container.RegisterPageModels(app) extension method that can be used to register Razor Page Models.

    🌐 ASP.NET (Web Forms / MVC) Integration

    • 💅 #671 Prevented WebRequestLifestyle from reusing the same Scope instance over multiple containers inside the same web request.

    🐛 Bug fixes

    Simple Injector core library

    • 🚚 #540 Removed the use of ThreadLocal<T> from the decorator sub system, which could cause memory leaks in case the user didn't dispose the container.