[Haskell-cafe] [ANNOUNCE] GHC 9.8.1-alpha2 is now available

[Sam Derbyshire]

... and by that, you presumably mean s/TypeApplications/TypeAbstractions.

On Tue, 22 Aug 2023 at 14:30, Arnaud Spiwack <arnaud.spiwack at tweag.io>
wrote:

> Thanks Ben.
>
> For the sake of the future announcements, the first item should have
> s/TypeApplications/TypeApplications/
>
>
> On Thu, 10 Aug 2023 at 17:09, Ben Gamari <ben at well-typed.com> wrote:
>
>>
>> The GHC developers are very pleased to announce the availability of the
>> second alpha prerelease of GHC 9.8.1. Binary distributions, source
>> distributions, and documentation are available at
>>
>>                https://downloads.haskell.org/ghc/9.8.1-alpha2
>>
>> GHC 9.8 will bring a number of new features and improvements, including:
>>
>>  * Preliminary support the `TypeApplications` language extension
>> [type-binders],
>>    allowing types to be bound in type declarations.
>>
>>  * 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 around two dozen bug-fixes relative to alpha 1.
>>
>> 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
>>
>>
>> [type-binders]:
>> 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-alpha2/docs/users_guide/9.8.1-notes.html
>> [ticket]: https://gitlab.haskell.org/ghc/ghc/-/issues/new
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>
>
>
> --
> Arnaud Spiwack
> Director, Research at https://moduscreate.com and https://tweag.io.
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