How to handle migration to .net 5?

[Kronos11]

I am having a bit of an issue with migrating to .net 5
Currently all my apps are not on .net 5, if I push up the update to migrate esquio to version 5 and leave my other apps at version 4, I get an error after deploying esquio from my other applications.

Is there any flag I can set to have backwards compatibility so my old apps can remove on esquio version 4 and still use the esquio version 5 http store?