Haskell Weekly


Issue 388 2023-10-05

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Welcome to another issue of Haskell Weekly! Haskell is a safe, purely functional programming language with a fast, concurrent runtime. This is a weekly summary of what’s going on in its community.



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In brief

  • Containers-0.7 released by Janus Troelsen

  • Is class dictionary passing the result of a implementation choice or theoritical necessity by maxigit

    As far as I understand function with class constraints are transformed into a function with an extra parameter being the typeclass dictionary. This allows the function to not have to be specialized and only decide at runtime what to do exactly.

  • Keeping Hugs alive by Chris Done

    The Hugs Haskell compiler/interpreter is a unique piece of work. Unfortunately, it’s kind of hard to install or build these days.

  • Scotty-0.20 released by ocramz

    This release includes a few bug fixes, new features (WAI applications nested under endpoints! Cookie support!) as well as a big refactoring of the ActionT type and the overall exception system as well as a bunch of new tests.

  • Servant-0.20.1 release candidate by Hécate Moonlight

    Hi everyone, servant-0.20.1 has a release candidate available!

  • Towards standard source code formatting by David Binder

    The question that I want to ask is what separates the current state from a possible future where we can say: cabal fmt and stack fmt and have our code formatted.

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