Stack has not been tested with GHC & Cabal versions

Question

In my Haskell project when I stack run, it is showing the following, but still runs. What warning is this? How can I get rid of it?

Stack has not been tested with GHC versions above 8.6, and using 8.8.2, this may fail
Stack has not been tested with Cabal versions above 2.4, but version 3.0.1.0 was found, this may fail

Answer 1

This is just a compatibility warning. The next stack version should be tested with GHC 8.8 and this warning should be gone. Until then there's probably little you can do unless you want to modify the source.