GHC 8.10 tracking ticket

[sjakobi]

(Last update: 2020-05-21)

dhall is currently blocked on:

• Compatibility with repline: Support repline-0.3 (and haskeline-0.8 properly) #1717
• Compatibility with template-haskell: Allow template-haskell-2.16 #1719
• serialise: Releases compatible with GHC 8.10 well-typed/cborg#234

dhall-lsp-server is blocked on:

• haskell-lsp: Support for GHC 8.10 haskell/lsp#239

dhall-yaml is blocked on:

• HsYAML-aeson: Support GHC 8.10 haskell-hvr/HsYAML-aeson#5
• HsYAML: Support GHC 8.10 haskell-hvr/HsYAML#41

[sjakobi]

In dhall there are a bunch of warnings like

src/Dhall/Set.hs:57:10: warning: [-Wmissing-methods]
    • No explicit implementation for
        ‘Syntax.liftTyped’
    • In the instance declaration for ‘Lift (Set a)’
   |
57 | instance (Data a, Lift a, Ord a) => Lift (Set a) where

Apart from that everything seems to build cleanly – I've skipped dhall-nix and haven't tested though.

[sjakobi]

#1775 should address the warnings for the Lift instances.

[sjakobi]

All the packages except dhall-nix can be built with GHC 8.10.1 now. Since we still have #1249 to track dhall-nix's compatibility with GHC 8.8, I'll close this issue for now.