Haskell Weekly


Issue 279 2021-09-02

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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.


  • GHC 8.10.7 is now available by Zubin Duggal

    The GHC team is very pleased to announce the availability of GHC 8.10.7. This is a small bugfix release, fixing one linking portability issue present in GHC 8.10.5 and GHC 8.10.6 on some x86_64 macOS toolchains.

  • Haskell Love Conference

    If you’re ready to take your Haskell skills to the next level and you still haven’t made plans, register now to join us on September 10th.

  • Announcing the new IHP Developer Subscription + IHP v0.14 by Marc Scholten

    Today I’m happy to announce the new IHP Pro and IHP Business plans together with the release of IHP v0.14.

  • Dependency Analysis of Haskell Declarations by Artem Kuznetsov

    Haskell is one of the few languages that let you structure your program how you see fit. Functions and data types can be declared and used in arbitrary order.

  • Dependent Types are a Runtime Maybe by Doug Beardsley

    Awhile back I was discussing dependent types with someone and we ended up concluding that dependent types can always be replaced by a runtime Maybe.

  • forall by Martin Šošić

    While normaly forall plays a role of the “universal quantifier”, it can also play a role of the “existential quantifier” (depends on the situation). What does all this mean and how can forall be used in Haskell? Read on to find out!

  • Naming function arguments in Dhall by Gabriella Gonzalez

    This post showcases some neat Dhall language features for improving the readability of types that I think other languages should steal.

  • Nascent GHC Proposal: Source Rewrite Rules and Optional Constraints by Chris Smith

    Lately, I’ve been thinking more and more about something that would be nice to have in GHC.


  • Senior Haskell developer (ad)

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In brief

Show & tell

  • Glean by Facebook

    System for collecting, deriving and querying facts about source code.

  • Goal: Geometric OptimizAtion Libraries by Sacha Sokoloski

    Today I’m happy to announce the release of version 0.20 of my numerical optimization and machine learning libraries that I call Goal (Geometric OptimizAtion Libraries).

  • Magical Haskell by Anton Antich

    Teaching modern typed functional programming and Haskell language in a fun and accessible way using real-world examples and a lot of visuals to help structure abstract concepts and develop intuition.

  • Weighted Search Package by Donnacha Oisín Kidney

    I have packaged up the more interesting bits from the Algebras for Weighted Search paper and put it up on hackage.

Call for participation