This is the twenty-eighth edition of our Haskell ecosystem activities report, which describes the work Well-Typed are doing on GHC, Cabal, HLS and other parts of the core Haskell toolchain. The current edition covers roughly the months of June 2025 to August 2025.

This is a change of name for our GHC activities report, to reflect the fact that it focuses on more than just GHC work. You can find the previous editions collected under the haskell-ecosystem-report tag.

Sponsorship

We offer Haskell Ecosystem Support Packages to provide commercial users with support from Well-Typed’s experts while investing in the Haskell community and its technical ecosystem including through the work described in this report. To find out more, read our announcement of these packages in partnership with the Haskell Foundation. We need funding to continue this essential maintenance work!

Recently we will delighted to welcome Standard Chartered as a Gold Haskell Ecosystem Supporter. Many thanks to Standard Chartered; to our other Haskell Ecosystem Supporters: Channable and QBayLogic; to our existing clients who also contribute to making this work possible: Anduril, Juspay and Mercury; and to the HLS Open Collective for supporting HLS release management.

Team

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