[ANNOUNCE] GHC 9.2.1-alpha1 now available

[George Colpitts]

Great news! I couldn't find a mention of the supported llvm version in the
release notes here
<https://ghc.gitlab.haskell.org/ghc/doc/users_guide/9.2.1-notes.html>.

Also will the llvm compiler option be supported for 9.2.1?

Thanks
George


On Thu, Apr 1, 2021 at 1:44 PM Ben Gamari <ben at well-typed.com> wrote:

> Hi all,
>
> The GHC developers are very happy to announce the availability of the
> first alpha release in the 9.2.1 series. Binary distributions, source
> distributions, and documentation are available at
>
>      https://downloads.haskell.org/ghc/9.2.1-alpha1
>
> GHC 9.2 will bring a number of exciting features including:
>
>  * Many changes in the area of records, including the new
>    `RecordDotSyntax` and `NoFieldSelectors` language extensions, as well
>    as Support for `DuplicateRecordFields` with `PatternSynonyms`.
>
>  * Introduction of the new `GHC2021` language extension set, giving
>    users convenient access to a larger set of language extensions which
>    have been long considered stable.
>
>  * Merge of `ghc-exactprint` into the GHC tree, providing infrastructure
>    for source-to-source program rewriting out-of-the-box.
>
>  * Introduction of a `BoxedRep` `RuntimeRep`, allowing for polymorphism
>    over levity of boxed objects (#17526)
>
>  * Implementation of the `UnliftedDataTypes` extension, allowing users
>    to define types which do not admit lazy evaluation ([proposal])
>
>  * The new [-hi profiling] mechanism which provides significantly
>    improved insight into thunk leaks.
>
>  * Support for the `ghc-debug` out-of-process heap inspection library
>    [ghc-debug]
>
>  * Support for profiling of pinned objects with the cost-centre profiler
>    (#7275)
>
>  * Introduction of Haddock documentation support in TemplateHaskell (#5467)
>
> In addition, the final 9.2.1 release will bring a new native code
> generator for ARM, providing fast, first-class for Haskell on Apple
> ARM hardware [apple-m1], although this functionality is not yet
> present in this alpha.
>
> As always, do give this a try and open a [ticket] if you see anything
> amiss.
>
> Happy testing,
>
> - Ben
>
>
> [apple-m1]: https://www.haskell.org/ghc/blog/20210309-apple-m1-story.html
> [proposal]:
> https://github.com/ghc-proposals/ghc-proposals/blob/master/proposals/0265-unlifted-datatypes.rst
> [-hi
> <https://github.com/ghc-proposals/ghc-proposals/blob/master/proposals/0265-unlifted-datatypes.rst%5B-hi>
> profiling]:
> https://well-typed.com/blog/2021/01/first-look-at-hi-profiling-mode/
> [ghc-debug
> <https://well-typed.com/blog/2021/01/first-look-at-hi-profiling-mode/%5Bghc-debug>]:
> http://ghc.gitlab.haskell.org/ghc-debug/
> [ticket]: https://gitlab.haskell.org/ghc/ghc/-/issues/new
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>
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