GHC 9.4.1-alpha1 now available

[Artem Pelenitsyn]

Thanks a lot, devs!

A bug in the docs, it seems:

https://downloads.haskell.org/ghc/9.4.1-alpha1/docs/html/

references User Guide as

https://downloads.haskell.org/ghc/9.4.1-alpha1/docs/html/users_guide/index.html

but this url gives 404. Same with the GHC API link.

--
Best, Artem

On Sun, May 1, 2022, 7:18 PM Ben Gamari <ben at well-typed.com> wrote:

>
> The GHC developers are happy to announce the availability of the first
> alpha release of the GHC 9.4 series. Binary distributions, source
> distributions, and documentation are available at downloads.haskell.org:
>
>    https://downloads.haskell.org/ghc/9.4.1-alpha1
>
> This major release will include:
>
>  - A new profiling mode, `-fprof-late`, which adds automatic cost-center
>    annotations to all top-level functions *after* Core optimisation has
>    run. This incurs significantly less performance cost while still
>    providing informative profiles.
>
>  - A variety of plugin improvements including the introduction of a new
>    plugin type, *defaulting plugins*, and the ability for typechecking
>    plugins to rewrite type-families.
>
>  - An improved constructed product result analysis, allowing unboxing of
>    nested structures, and a new boxity analysis, leading to less reboxing.
>
>  - Introduction of a tag-check elision optimisation, bringing
>    significant performance improvements in strict programs.
>
>  - Generalisation of a variety of primitive types to be levity
>    polymorphic. Consequently, the `ArrayArray#` type can at long last be
>    retired, replaced by standard `Array#`.
>
>  - Introduction of the `\cases` syntax from [GHC proposal 0302]
>
>  - A complete overhaul of GHC's Windows support. This includes a
>    migration to a fully Clang-based C toolchain, a deep refactoring of
>    the linker, and many fixes in WinIO.
>
>  - Support for multiple home packages, significantly improving support
>    in IDEs and other tools for multi-package projects.
>
>  - A refactoring of GHC's error message infrastructure, allowing GHC to
>    provide diagnostic information to downstream consumers as structured
>    data, greatly easing IDE support.
>
>  - Significant compile-time improvements to runtime and memory consumption.
>
>  - ... and much more
>
> We would like to thank Microsoft Azure, GitHub, IOHK, the Zw3rk
> stake pool, Tweag I/O, Serokell, Equinix, SimSpace, 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 testing,
>
> - Ben
>
>
> [GHC proposal 0302]:
> https://github.com/ghc-proposals/ghc-proposals/blob/master/proposals/0302-cases.rst
> [ticket]: https://gitlab.haskell.org/ghc/ghc/-/issues/new
> _______________________________________________
> ghc-devs mailing list
> ghc-devs at haskell.org
> http://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-devs
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.haskell.org/pipermail/ghc-devs/attachments/20220501/abb12816/attachment.html>