Haskell support for recent LTS
Currently, Haskell support is a bit outdated, with
stack I cannot use snapshots released for the last couple of years.
This is a known issue,
stack of version 1.9.3 that is provided by Repl.it and was commonly used before, now cannot download any recent lts. This complicates the use of libraries.
1.* version is known to have other issues, so an update would be really appreciated.