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January 2025

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2 discussions

Providing feedback on Glasgow Haskell Compiler release practices
by Ben Gamari 22 Jan '25

22 Jan '25

Hello GHC distributors and testers, Over the last few months we have been evaluating the GHC's policies with respect to release management and communications. Together with a small group of stakeholders, we have put together a document [1] which seeks to more precisely record we GHC releases are prepared, communicated, and released. As GHC distributors, we would love to hear your thoughts on how we can make your lives easier. It would be appreciated if you could review the document and leave your comments on the merge request. Thank you for all of your work in bringing functional programming to the masses. Cheers, - Ben [1] https://gitlab.haskell.org/ghc/ghc-hq/-/merge_requests/38

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PSA: Correctness issue in GHC-9.12.1
by Andreas Klebinger 16 Jan '25

16 Jan '25

Today a bug in 9.12.1 was reported and confirmed (#25653) which can lead to incorrect runtime results in compiled programs. In particular this seems to happen for sub-word divisions with a known divisor when optimizations are enabled and affects at least the x86 backend, although it’s likely that other backends are also affected. We plan to release a bug fix release 9.12.2 in the near future to address this issue and recommend people do not upgrade until then.

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