Microsoft .net Framework 4 Multi Targeting Pack !!better!! -

: Enables the selection of specific versions, such as .NET Framework 4.0.3, in the project properties of Visual Studio. Reference Assemblies

This adds the reference assemblies directly to your solution’s packages folder. This is excellent for CI/CD pipelines where you cannot modify the build agent's operating system. microsoft .net framework 4 multi targeting pack

The is a behind-the-scenes hero of the .NET ecosystem. It decoupled the developer's environment from the production environment, allowing for smoother transitions between framework versions. : Enables the selection of specific versions, such as

This was a pivotal moment. The 4.5 pack includes the reference assemblies for 4.0, 4.5, and intermediate versions (like 4.0.1 and 4.0.2). Therefore, on modern systems, installing the 4.5 Targeting Pack effectively satisfies the requirement to target .NET 4.0. such as .NET Framework 4.0.3