In Earlier versions of ASP.NET Core till v2.2, we used large number of NuGet packages to use some features. From ASP.NET v3.0 version, we don’t need to refer these NuGet references, instead these packages are available as a part of Microsoft.AspNetCore.App shared framework. No additional references are required.

The shared framework is the set of assemblies (.dll files) that are installed on the machine and includes a runtime component, and a targeting pack. For more information, see The shared framework.

List of Obsolete Package References are below,

• Microsoft.AspNetCore
• Microsoft.AspNetCore.All
• Microsoft.AspNetCore.App
• Microsoft.AspNetCore.Antiforgery
• Microsoft.AspNetCore.Authentication
• Microsoft.AspNetCore.Authentication.Abstractions
• Microsoft.AspNetCore.Authentication.Cookies
• Microsoft.AspNetCore.Authentication.Core
• Microsoft.AspNetCore.Authentication.JwtBearer
• Microsoft.AspNetCore.Authentication.OAuth
• Microsoft.AspNetCore.Authentication.OpenIdConnect
• Microsoft.AspNetCore.Authorization
• Microsoft.AspNetCore.Authorization.Policy
• Microsoft.AspNetCore.CookiePolicy
• Microsoft.AspNetCore.Cors
• Microsoft.AspNetCore.Cryptography.Internal
• Microsoft.AspNetCore.Cryptography.KeyDerivation
• Microsoft.AspNetCore.DataProtection
• Microsoft.AspNetCore.DataProtection.Abstractions
• Microsoft.AspNetCore.DataProtection.Extensions
• Microsoft.AspNetCore.Diagnostics
• Microsoft.AspNetCore.Diagnostics.HealthChecks
• Microsoft.AspNetCore.HostFiltering
• Microsoft.AspNetCore.Hosting
• Microsoft.AspNetCore.Hosting.Abstractions
• Microsoft.AspNetCore.Hosting.Server.Abstractions
• Microsoft.AspNetCore.Http
• Microsoft.AspNetCore.Http.Abstractions
• Microsoft.AspNetCore.Http.Connections
• Microsoft.AspNetCore.Http.Extensions
• Microsoft.AspNetCore.Http.Features
• Microsoft.AspNetCore.HttpOverrides
• Microsoft.AspNetCore.HttpsPolicy
• Microsoft.AspNetCore.Identity
• Microsoft.AspNetCore.Localization
• Microsoft.AspNetCore.Localization.Routing
• Microsoft.AspNetCore.MiddlewareAnalysis
• Microsoft.AspNetCore.Mvc
• Microsoft.AspNetCore.Mvc.Abstractions
• Microsoft.AspNetCore.Mvc.Analyzers
• Microsoft.AspNetCore.Mvc.ApiExplorer
• Microsoft.AspNetCore.Mvc.Api.Analyzers
• Microsoft.AspNetCore.Mvc.Core
• Microsoft.AspNetCore.Mvc.Cors
• Microsoft.AspNetCore.Mvc.DataAnnotations
• Microsoft.AspNetCore.Mvc.Formatters.Json
• Microsoft.AspNetCore.Mvc.Formatters.Xml
• Microsoft.AspNetCore.Mvc.Localization
• Microsoft.AspNetCore.Mvc.Razor
• Microsoft.AspNetCore.Mvc.Razor.Extensions
• Microsoft.AspNetCore.Mvc.Razor.ViewCompilation
• Microsoft.AspNetCore.Mvc.RazorPages
• Microsoft.AspNetCore.Mvc.TagHelpers
• Microsoft.AspNetCore.Mvc.ViewFeatures
• Microsoft.AspNetCore.Razor
• Microsoft.AspNetCore.Razor.Runtime
• Microsoft.AspNetCore.Razor.Design
• Microsoft.AspNetCore.ResponseCaching
• Microsoft.AspNetCore.ResponseCaching.Abstractions
• Microsoft.AspNetCore.ResponseCompression
• Microsoft.AspNetCore.Rewrite
• Microsoft.AspNetCore.Routing
• Microsoft.AspNetCore.Routing.Abstractions
• Microsoft.AspNetCore.Server.HttpSys
• Microsoft.AspNetCore.Server.IIS
• Microsoft.AspNetCore.Server.IISIntegration
• Microsoft.AspNetCore.Server.Kestrel
• Microsoft.AspNetCore.Server.Kestrel.Core
• Microsoft.AspNetCore.Server.Kestrel.Https
• Microsoft.AspNetCore.Server.Kestrel.Transport.Abstractions
• Microsoft.AspNetCore.Server.Kestrel.Transport.Sockets
• Microsoft.AspNetCore.Session
• Microsoft.AspNetCore.SignalR
• Microsoft.AspNetCore.SignalR.Core
• Microsoft.AspNetCore.StaticFiles
• Microsoft.AspNetCore.WebSockets
• Microsoft.AspNetCore.WebUtilities
• Microsoft.Net.Http.Headers