.NET 2.0-3.5 Custom Actions in WiX 5

[chrpai]

I frequently compile my DTF CAs for .NET 2.0 and then use a CustomAction.config that says it may run on 2.0 or 4.0. This gives me the broadest compatibility and I've never seen any issues doing this.

In the latest Heatwave I created C# Custom Action for WiX v4 and told it to use .NET 2.0 in the wizard. However the resulting project targetted 4.7.2 instead. When I downgraded it to 2.0 I received compile errors. If I downgrade the package refs to 4.0.5 everything works.

Was it intentional for 5.0.0 to not support anything before 4.6.2?

[chrpai]

firegiant/HeatWaveSupport#62
#8134