GHC 9.4.1-alpha1 now available
a.pelenitsyn at gmail.com
Mon May 2 01:31:01 UTC 2022
Thanks a lot, devs!
A bug in the docs, it seems:
references User Guide as
but this url gives 404. Same with the GHC API link.
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:
> 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]:
> [ticket]: https://gitlab.haskell.org/ghc/ghc/-/issues/new
> ghc-devs mailing list
> ghc-devs at haskell.org
-------------- next part --------------
An HTML attachment was scrubbed...
More information about the ghc-devs