EntityFramework.Functions library implements Entity Framework code first support for stored procedures (with single result type, multiple result types, output parameter), table-valued functions (returning entity type, complex type), scalar-valued functions (composable, non-composable), aggregate functions, built-in functions, niladic functions, and model defined functions.
Different assemblies are built for different target versions, but in the end the same 4.8 assembly is used for all TFVs when packaging for nuget: https://github.com/Dixin/EntityFramework.Functions/blob/master/Tools/EntityFramework.Functions.nuspec#L56