Re: GHC 9.14.1-rc2 is now available

Success.

On Thu, 6 Nov 2025 at 16:41, Zubin Duggal <[email protected]> wrote:

> Try refreshing https://downloads.haskell.org/ghc/9.14.1-rc2/,
> I purged the CDN cache.
>
> On 25/11/06 12:34, George Colpitts wrote:
> >I get a 404 Not Found when I click on any of the darwin releases, e.g.
> >
> https://downloads.haskell.org/ghc/9.14.1-rc2/ghc-9.14.0.20251031-aarch64-apple-darwin.tar.xz
> >
> >On Thu, Nov 6, 2025 at 12:12 PM Zubin Duggal <[email protected]>
> wrote:
> >
> >> The GHC developers are very pleased to announce the availability of the
> >> second release candidate of GHC 9.14.1. Binary distributions, source
> >> distributions, and documentation are available at [
> downloads.haskell.org
> >> ][].
> >>
> >> The changes from the first release candidate are:
> >>
> >> * Bump the exceptions submodule to 0.10.11
> >> * Bump the os-string submodule to 2.0.8
> >> * Fix a driver regression causing an infinite loop with cyclic imports
> >>
> >> GHC 9.14 will bring a number of new features and improvements,
> including:
> >>
> >> * Significant improvements in specialisation:
> >>     * The `SPECIALISE` pragma now allows use of type application syntax
> >>     * The `SPECIALISE` pragma can be used to specialise for expression
> >> arguments
> >>       as well as type arguments.
> >>     * Specialisation is now considerably more reliable in the presence
> of
> >>       `newtype`s
> >>
> >> * Significant GHCi improvements including:
> >>    * Correctness and performance improvements in the bytecode
> interpreter
> >>    * Features in the GHCi debugger
> >>    * Support for multiple home units in GHCi
> >>
> >> * Implementation of the [Explicit Level Imports proposal][levels]
> >>
> >> * `RequiredTypeArguments` can now be used in more contexts
> >>
> >> * SSE/AVX2 support in the x86 native code generator backend
> >>
> >> * A major update of the Windows toolchain and improved compatibility
> with
> >>    macOS Tahoe
> >>
> >> * ... and many more
> >>
> >> A full accounting of changes can be found in the [release notes][].
> Given
> >> the
> >> many specialisation improvements and their potential for regression, we
> >> would
> >> very much appreciate testing and performance characterisation on
> downstream
> >> workloads.
> >>
> >> Note that while this release makes many improvements in the
> specialisation
> >> optimisation, polymorphic specialisation will remain disabled by default
> >> in the
> >> final release due to concern over regressions of the sort identified in
> >> [#26329][T26329]. Users needing more aggressive specialisation can
> >> explicitly
> >> enable this feature with the `-fpolymorphic-specialisation` flag.
> Depending
> >> upon our experience with 9.14.1, we may enable this feature by default
> in a
> >> later minor release.
> >>
> >> We would like to thank the Zw3rk stake pool, Well-Typed, Mercury,
> >> Channable,
> >> Tweag I/O, Serokell, SimSpace, the Haskell Foundation, and other
> anonymous
> >> contributors whose on-going financial and in-kind support has
> facilitated
> >> GHC
> >> maintenance and release management over the years. Finally, this release
> >> would
> >> not have been possible without the hundreds of open-source contributors
> >> whose
> >> work have made the Haskell ecosystem what it is today.
> >>
> >> As always, do give this release a try and open a [ticket][] if you see
> >> anything amiss.
> >>
> >>
> >> [downloads.haskell.org]: https://downloads.haskell.org/ghc/9.14.1-rc2
> >> [release notes]:
> >>
> https://downloads.haskell.org/ghc/9.14.1-rc2/docs/users_guide/9.14.1-notes.html
> >> [ticket]: https://gitlab.haskell.org/ghc/homepage/-/issues/new
> >> [macos]: https://gitlab.haskell.org/ghc/ghc/-/issues/26166
> >> [T26329]: https://gitlab.haskell.org/ghc/ghc/-/issues/26329
> >> [levels]:
> >>
> https://github.com/ghc-proposals/ghc-proposals/blob/master/proposals/0682-explicit-level-imports.rst
> >> _______________________________________________
> >> Glasgow-haskell-users mailing list -- [email protected]
> >> To unsubscribe send an email to [email protected]
> >>
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-- 
Noon van der Silk

http://silky.github.io/

"My programming language is kindness."

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