---
title: "Issue 530"
url: https://daily.dev/posts/issue-530-r6efennml
source_url: https://haskellweekly.news/issue/530.html
type: article
source: "Haskell Weekly"
published: 2026-06-25T09:42:54.527Z
updated: 2026-06-25T09:43:18.371Z
tags: ["general-programming", "postgresql", "haskell"]
reading_time: 4
upvotes: 0
comments: 0
language: en
---

> ## Documentation Index
> Fetch the complete documentation index at: https://daily.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# Issue 530

**[Haskell Weekly](https://daily.dev/sources/haskellwkly)** · 4 min read · 0 upvotes · 0 comments

## Summary

Haskell Weekly issue 530 covers the Haskell ecosystem activities report for March–May 2026 from Well-Typed (covering GHC, Cabal, HLS work), a guide on creating statically-linked Haskell executables with Nix, an introduction to the pqi library aiming to decouple Haskell PostgreSQL drivers from libpq, an introductory post on record type inference, and a deep dive into representing sheaves in Haskell using category theory. Brief announcements include apecs-0.10.0 (ECS package), Fourmolu 0.20.0.0 formatter release with GHC 9.14 support, GHC 9.12.5-rc2, and new Hpack-Dhall and Stock packages.

## Full article

daily.dev links to this article rather than hosting it. Read it at the original source: <https://haskellweekly.news/issue/530.html>

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---

Tags: [#general-programming](https://daily.dev/tags/general-programming), [#postgresql](https://daily.dev/tags/postgresql), [#haskell](https://daily.dev/tags/haskell)

[View this post on daily.dev](https://daily.dev/posts/issue-530-r6efennml)