Hi all, Last night my patch got merged which changed some aspects of the hadrian settings file. If you have a custom settings file (ie hadrian/UserSettings.hs), you need to remove reference to the `stage1Only` variable and add a new variable called `finalStage` which should default to `Stage2`. https://gitlab.haskell.org/ghc/ghc/commit/6486c6e49c53e75f37ed732b38c5be7ae6... Cheers, Matt