[Haskell-cafe] [Haskell] [ANNOUNCE] Glasgow Haskell Compiler 9.0.1-alpha1 released

[Dan Burton]

That's great news! Thank you for your hard work.

Does this address the Windows issue with GHC 8.10.2? Will there still be a
GHC 8.10.3 release?
See: https://gitlab.haskell.org/ghc/ghc/-/issues/18550

(Pardon the dupe; I had the wrong address on haskell-cafe)

-- Dan Burton


On Tue, Sep 29, 2020 at 5:23 PM Dan Burton <danburton.email at gmail.com>
wrote:

> That's great news! Thank you for your hard work.
>
> Does this address the Windows issue with GHC 8.10.2? Will there still be a
> GHC 8.10.3 release?
> See: https://gitlab.haskell.org/ghc/ghc/-/issues/18550
>
> -- Dan Burton
>
>
> On Mon, Sep 28, 2020 at 3:16 PM Ben Gamari <ben at well-typed.com> wrote:
>
>> Hello all,
>>
>> The GHC team is very pleased to announce the availability of the first
>> alpha release in the GHC 9.0 series. Source and binary distributions are
>> available at the usual place:
>>
>>     https://downloads.haskell.org/ghc/9.0.1-alpha1/
>>
>> This first alpha comes quite a bit later than expected. However, we have
>> done a significant amount of testing on this pre-release and therefore
>> hope to be able to move forward quickly with a release candidate next
>> week and with a final release in mid-October.
>>
>> GHC 9.0.1 will bring a number of new features:
>>
>>  * A first cut of the new LinearTypes language extension [1], 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 [2]
>>    simplifying the type system and paving the way for QuickLook
>>    impredicativity in GHC 9.2.
>>
>>  * Implementation of the QualifiedDo extension [3], allowing more
>>    convenient overloading of `do` syntax.
>>
>>  * Improvements in compilation time.
>>
>> And many more. See the release notes [4] for a full accounting of the
>> changes in this release.
>>
>> Do note that there are a few things that we expect will change before
>> the final release:
>>
>>  * We expect to sort out a notarization workflow for Apple Darwin,
>>    allowing our binary distributions to be used on macOS Catalina
>>    without hassle.
>>
>>    Until this has been sorted out Catalina users can exempt the
>>    current macOS binary distribution from the notarization requirement
>>    themselves by running `xattr -cr .` on the unpacked tree before
>>    running `make install`.
>>
>>  * We will likely transition the Alpine binary distribution to be fully
>>    statically-linked, providing a convenient, distribution-independent
>>    packaging option for Linux users.
>>
>>  * We will be merging a robust solution for #17760 which will introduce
>>    a new primitive, `keepAlive#`, to the `base` library, subsuming
>>    most uses of `touch#`.
>>
>> As always, do test this release and open tickets for whatever issues you
>> encounter. To help with this, we will be publishing a blog post
>> describing use of our new `head.hackage` infrastructure to ease testing
>> of larger projects with Hackage dependencies later this week.
>>
>> Cheers,
>>
>> - Ben
>>
>>
>> [1]
>> https://github.com/ghc-proposals/ghc-proposals/blob/master/proposals/0111-linear-types.rst
>> [2]
>> https://github.com/ghc-proposals/ghc-proposals/blob/master/proposals/0287-simplify-subsumption.rst
>> [3]
>> https://github.com/ghc-proposals/ghc-proposals/blob/master/proposals/0216-qualified-do.rst
>> [4]
>> https://downloads.haskell.org/ghc/9.0.1-alpha1/docs/html/users_guide/9.0.1-notes.html
>> _______________________________________________
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>>
>
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