Hi @patchlings,
No problem! We are still investigating some workarounds, but we don't have anything specific yet.
We don't currently have a timeline for the .NET 5 switch. We have attempted a .NET Core transition in early 2019, but we ran into too many instability issues and scrapped it. We will wait for .NET 5 to be officially released (Microsoft says November 2020) before we attempt the switch, but it will all come down to the stability of ProGet on .NET 5.
Thanks,
Rich