[Haskell-cafe] [ANNOUNCE] GHC 9.8.1-alpha4 is now available

[George Colpitts]

It seems unlikely that the current tests wouldn't find this bug. Is it the
case that the tests are never run on aarch64-darwin Macs?

On Fri, Sep 22, 2023 at 7:34 PM George Colpitts <george.colpitts at gmail.com>
wrote:

>
>    -
>    #21570, Linker broken on M1 Mac, occurs on 9.8.1-alpha4. I have
>    updated the bug. My guess is that it was never addressed as the info needed
>    tag was never removed after the  required  info was supplied. It might be
>    good to have a test for this.
>    <https://gitlab.haskell.org/ghc/ghc/-/issues/21570>
>    -
>    <https://gitlab.haskell.org/ghc/ghc/-/issues/21570>
>
>
> On Wed, Sep 20, 2023 at 1:54 AM Ben Gamari <ben at well-typed.com> wrote:
>
>>
>> The GHC developers are very pleased to announce the availability of the
>> third alpha prerelease of GHC 9.8.1. Binary distributions, source
>> distributions, and documentation are available at
>>
>>             https://downloads.haskell.org/ghc/9.8.1-alpha4
>>
>> GHC 9.8 will bring a number of new features and improvements, including:
>>
>>  * Preliminary support the `TypeAbstractions` language extension,
>>    allowing types to be bound in type declarations [TypeAbstractions].
>>
>>  * Support for the `ExtendedLiterals` extension, providing syntax for
>>    non-word-sized numeric literals in the surface language
>>    [extended-literals]
>>
>>  * Improved rewrite rule matching behavior, allowing limited matching of
>>    higher-order patterns
>>
>>  * Better support for user-defined warnings by way of the `WARNING`
>>    pragma [warnings]
>>
>>  * The introduction of the new `GHC.TypeError.Unsatisfiable`
>>    constraint, allowing more predictable user-defined type errors
>>    [unsatisfiable]
>>
>>  * Implementation of the export deprecation proposal, allowing module
>>    exports to be marked with `DEPRECATE` pragmas [deprecated-exports]
>>
>>  * The addition of build semaphore support for parallel compilation;
>>    with coming support in `cabal-install` this will allow better use of
>>    parallelism in multi-package builds [jsem]
>>
>>  * More efficient representation of info table provenance information,
>>    reducing binary sizes by over 50% in some cases when
>>    `-finfo-table-map` is in use
>>
>> A full accounting of changes can be found in the [release notes].
>> This alpha includes roughly 40 new commits relative to alpha 3,
>> including what we believe should be nearly the last changes to GHC's
>> boot libraries.
>>
>> We would like to thank GitHub, IOG, the Zw3rk stake pool,
>> Well-Typed, Tweag I/O, Serokell, Equinix, 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
>> comprise this release.
>>
>> As always, do give this release a try and open a [ticket] if you see
>> anything amiss.
>>
>> Happy compiling,
>>
>> ~ Ben
>>
>> [TypeAbstractions]:
>> https://github.com/ghc-proposals/ghc-proposals/blob/master/proposals/0425-decl-invis-binders.rst
>> [extended-literals
>> <https://github.com/ghc-proposals/ghc-proposals/blob/master/proposals/0425-decl-invis-binders.rst%5Bextended-literals>]:
>>
>> https://github.com/ghc-proposals/ghc-proposals/blob/master/proposals/0451-sized-literals.rst
>> [unsatisfiable]:
>> https://github.com/ghc-proposals/ghc-proposals/blob/master/proposals/0433-unsatisfiable.rst
>> [warnings]:
>> https://github.com/ghc-proposals/ghc-proposals/blob/master/proposals/0541-warning-pragmas-with-categories.rst
>> [deprecated-exports
>> <https://github.com/ghc-proposals/ghc-proposals/blob/master/proposals/0541-warning-pragmas-with-categories.rst%5Bdeprecated-exports>]:
>>
>> https://github.com/ghc-proposals/ghc-proposals/blob/master/proposals/0134-deprecating-exports-proposal.rst
>> [jsem]:
>> https://github.com/ghc-proposals/ghc-proposals/blob/master/proposals/0540-jsem.rst
>> [release notes]:
>> https://downloads.haskell.org/ghc/9.8.1-alpha4/docs/users_guide/9.8.1-notes.html
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>
>
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