Visual Studio Version for Revit 2020

[kudzuman]

Is a certain version of Visual Studio required to develop addins for Revit 2020?

[JimJia]

There is no official announcement on this in Revit, you can refer to related info about earlier Revit 2019 - I guess Visual Studio 2017 is still supported or recommended: 

https://knowledge.autodesk.com/support/revit-products/learn-explore/caas/simplecontent/content/my-fi...

https://thebuildingcoder.typepad.com/blog/2018/04/revitlookup-2019-and-new-sdk-samples.html