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 <b...@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@haskell.org > http://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-devs >
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