# .NET Framework 4+

The C# version of Astronomy Engine is targeted to
[.NET Standard 2.0](https://docs.microsoft.com/en-us/dotnet/standard/net-standard?tabs=net-standard-2-0).
Therefore, it supports .NET Framework 4+ and .NET Core 5+.

Currently I do all unit testing and development under .NET 6.
However, I make an effort to maintain backward compatibility
with .NET Framework 4+, although issues may slip through.

If you encounter problems with Framework builds, please submit
an issue and I will help you resolve them.

This directory contains a solution just to make sure
Visual Studio 2019 can build and run a simple program
in .NET Framework 4.7.2. It is a manual test only; it is not
included in the automated test suite.