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Developer technologies | .NET | Other
Microsoft Technologies based on the .NET software framework. Miscellaneous topics that do not fit into specific categories.
Hello Aditya Shah,
Most of the components you listed are part of the ASP.NET MVC 4 and ASP.NET 4.5 ecosystem, which have passed their End of Support dates.
Here is the breakdown based on the official Microsoft Support Lifecycle Policy:
ASP.NET MVC 4, Web API 1, and Web Pages 2
The following components from your list are governed by the ASP.NET External Packages support policy:
Microsoft.AspNet.Mvc (4.0.x)
Microsoft.AspNet.WebApi (4.0.x / Web API 1)
Microsoft.AspNet.WebPages (2.0.x)
Status: Out of Support End of Support Date: July 1, 2019 Official Policy Link: ASP.NET Support Policy (See the "External Packages" table which explicitly lists MVC 4, Web API 1, and Web Pages 2 as ending support on July 1, 2019.)
Entity Framework 5.0.0
Entity Framework 5 was released in 2012. It has been superseded by Entity Framework 6 (the long-term support version for .NET Framework).
Status: Out of Support Upgrade Guidance: You must upgrade to Entity Framework 6.x (currently 6.4.4 or 6.5) to be on a supported version for .NET Framework. Official Policy Link: Entity Framework Support Policies
Utility Libraries (WebGrease, Unobtrusive Ajax, etc.)
Components like WebGrease 1.1.0 and Microsoft.jQuery.Unobtrusive.Ajax are dependencies that shipped with the MVC 4 templates.
WebGrease: The version you are using (1.1.0) is from 2012. It is no longer supported.
Unobtrusive Ajax/Validation: These are "Tools" often supported for 1 year after the release of a successor.
Status: Out of Support (Implied by the EOL of the parent MVC 4 framework).
Recommended Upgrade Path
You have two primary options to reach a supported state:
Option A: The "In-Place" Update (Easiest) Target the latest .NET Framework 4.8.1 and update your NuGet packages to the "LTS" versions of the classic stack.
Target Framework: Upgrade to .NET Framework 4.8.1.
MVC: Upgrade Microsoft.AspNet.Mvc to 5.3.x.
Web API: Upgrade Microsoft.AspNet.WebApi to 5.3.x (Web API 2).
Entity Framework: Upgrade to Entity Framework 6.5.
Option B: The "Modernization" Rewrite (Best for Security/Long Term) Rewrite the application to .NET 8 (or later).
This involves moving from ASP.NET MVC to ASP.NET Core.
Moving from EF5/6 to EF Core.
This is a significant effort but places you on the modern, cross-platform lifecycle.