Hello Devs, After running into #16408 today I realized there is as of yet no released bindist of the 8.6 series which I would consider stable for windows. GHC 8.6.1 and 8.6.2 had a series of critical bugs which applied to multiple platforms: https://gitlab.haskell.org/ghc/ghc/issues/16408 GHC 8.6.3 loops forever if compiling certain code using TH on windows. This affects some very popular hackage packages: (#16057) https://gitlab.haskell.org/ghc/ghc/issues/16057 GHC 8.6.4 (marked stable) currently ships without profiling libraries, making profiling impossible. Being stuck with 8.4 is one thing, and if properly communicated not too bad. But it requires work to even find out about these (major) issues and to discover that 8.6 is NOT production ready for windows. We offered the broken 8.6.3 as stable for weeks without any indication that it was broken. We still serve GHC 8.6.4 as stable without any hint about the missing profiling libraries. I can't offer solutions in this case but I feel like something about the release management has to change if . Having to check the GHC bugtracker to find out if the current stable release is actually stable is just not sustainable.