[ANNOUNCE] Glasgow Haskell Compiler 9.0.1-rc1 released
alexbiehl at gmail.com
Sun Jan 3 19:18:57 UTC 2021
Thank you for your effort. It is greatly appreciated.
One nit though: I noticed the Haddocks for ghc and the libraries don't come
with hyperlinked source but instead with the old, deprecated HsColour
Grepping on GitLab showed some commits around switching
--hyperlinked-sources on unfortinately it doesn't
Am Mi., 30. Dez. 2020 um 16:17 Uhr schrieb Ben Gamari <ben at well-typed.com>:
> Hello all,
> The GHC team is very pleased to announce the availability of the first
> release candidate of GHC 9.0.1 series. Source and binary distributions are
> available at the usual place:
> This release candidate comes quite a bit later than expected after
> difficulty finding a performance neutral fix for a critical soundness bug,
> #17760. See  for details on the solution, particularly
> if you are a library maintainer currently using the touch# primop or
> Nevertheless, this release has nevertheless seen a considerable amount of
> testing and consequently we hope that this should be the last
> pre-release before the final release.
> In addition to numerous bug fixes, GHC 9.0.1 will bring a number of new
> * A first cut of the new LinearTypes language extension , allowing
> use of linear function syntax and linear record fields.
> * A new bignum library (ghc-bignum), allowing GHC to be more easily
> used with integer libraries other than GMP.
> * Improvements in code generation, resulting in considerable
> performance improvements in some programs.
> * Improvements in pattern-match checking, allowing more precise
> detection of redundant cases and reduced compilation time.
> * Implementation of the "simplified subsumption" proposal 
> simplifying the type system and paving the way for QuickLook
> impredicativity in GHC 9.2.
> * Implementation of the QualifiedDo extension , allowing more
> convenient overloading of `do` syntax.
> * Improvements in compilation time.
> And many more. See the release notes  for a full accounting of the
> changes in this release.
> As always, do test this release and open tickets for whatever issues you
> - Ben
>  https://gitlab.haskell.org/ghc/ghc/-/wikis/migration/9.0#ghc-prim-07
> ghc-devs mailing list
> ghc-devs at haskell.org
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