ghc requeres upgrade to 9.x
Keeping this issue to track disabled ghc to unblock x86_64 builder waiting for !20134 (merged)
Release changes for 8.10.x (since 8.8.x):
- The
UnliftedNewtype
s extension, allowingnewtype
s to be wrap types of kind other than Type. - The
StandaloneKindSignatures
extension, allowing explicit signatures on type constructors. - A new, low-latency garbage collector for the oldest generation.
Release changes for 8.8.x (since 8.6.x):
- GHC now supports visible type applications.
- Type variables in type family instances and rewrite rules can now be explicitly forall-bound.
- A new code layout algorithm for x86.
- The final phase of the MonadFail proposal has been implemented.
- Many, many bug fixes.