From juhpetersen at gmail.com  Tue Sep 11 09:41:43 2018
From: juhpetersen at gmail.com (Jens Petersen)
Date: Tue, 11 Sep 2018 18:41:43 +0900
Subject: [ANNOUNCE] GHC 8.6.1-beta1 available
In-Reply-To: <87y3ddprbw.fsf@smart-cactus.org>
References: <87y3ddprbw.fsf@smart-cactus.org>
Message-ID: <CAEDGBqKdW=Vq3QHhDJpxuH9rXThA+yn8dKraWnVSSBshVBhjMQ@mail.gmail.com>

On Sat, 11 Aug 2018 at 11:31, Ben Gamari <ben at well-typed.com> wrote:
> The GHC development team is very pleased to announce the first beta
> leading up to GHC 8.6.1 release.

Thank you!

I have built it for Fedora and RHEL 7 in my Copr repo last week:
https://copr.fedorainfracloud.org/coprs/petersen/ghc-8.6.1/

I was away last month, and I am sending this belatedly.

From mail at joachim-breitner.de  Sun Sep 16 08:14:18 2018
From: mail at joachim-breitner.de (Joachim Breitner)
Date: Sun, 16 Sep 2018 10:14:18 +0200
Subject: Call for lightning talks and participation -- Haskell Implementors'
 Workshop
Message-ID: <d80e04f48fcd5fbebeb0781cec54789225c5310f.camel@joachim-breitner.de>

                        Call for Contributions
               ACM SIGPLAN Haskell Implementors’ Workshop
                     Sunday, 23 September, 2018

            https://icfp18.sigplan.org/track/hiw-2018-papers

                     Co-located with ICFP 2018
                      St. Louis, Missouri, US
              https://conf.researchr.org/home/icfp-2018


The Haskell Implementors Workshop is only one week away! Time to look
at our great program at

      https://icfp18.sigplan.org/track/hiw-2018-papers#program

and plan your day!

Lightning Talks
---------------

Like in the previous years, we will have slots for lightning talks. And
because they were so successful last year, we will have more!

*Topics*

Anything related to Haskell implementations, fun uses of Haskell etc.
goes. Feel free to tell us about ongoing work, to entertain, to rant,
to stir a debate!

(If you ever have been to a security or crypto conference, you might
have attended their “rump session”. While there will not be alcohol
involved at HIW, I hope that we can still match their creativity and
insightful fun.)

*Rules*

 * There are 3 sets of 3 lightning talks.
 * Sign-up is on day of the event, in person, on paper. No prior 
   registration possible.
 * Lightning talks are 8 mins or less.
   If you know that your lightning talk takes less time, please say so,
   and maybe we can put four lightning talks into the slot.
 * Lightning talks do not count as peer-reviewed publications and are
   not published in the conference proceedings.

Program Committee
-----------------

 * Edwin Brady (University of St. Andrews, UK)
 * Joachim Breitner – chair (DFINITY / University of Pennsylvania)
 * Ben Gamari (Well-Typed LLP)
 * Michael Hanus (Kiel University)
 * Roman Leshchinsky (Facebook)
 * Niki Vazou (University of Maryland)

Contact
-------

 * Joachim Breitner <joachim at cis.upenn.edu>


-- 
Joachim Breitner
former post-doctoral researcher

http://cis.upenn.edu/~joachim
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From ben at well-typed.com  Sat Sep 22 00:57:02 2018
From: ben at well-typed.com (Ben Gamari)
Date: Fri, 21 Sep 2018 20:57:02 -0400
Subject: [ANNOUNCE] GHC 8.6.1 released
Message-ID: <87wore1h9i.fsf@smart-cactus.org>

Hello everyone,

The GHC team is pleased to announce the availability of GHC 8.6.1, the
fourth major release in the GHC 8 series. The source distribution, binary
distributions, and documentation for this release are available at

    https://downloads.haskell.org/~ghc/8.6.1

The 8.6 release fixes over 400 bugs from the 8.4 series and introduces a
number of exciting features. These most notably include:

 * A new deriving mechanism, `deriving via`, providing a convenient way
   for users to extend Haskell's typeclass deriving mechanism

 * Quantified constraints, allowing forall quantification in constraint contexts

 * An early version of the GHCi `:doc` command

 * The `ghc-heap-view` package, allowing introspection into the
   structure of GHC's heap

 * Valid hole fit hints, helping the user to find terms to fill typed
   holes in their programs

 * The BlockArguments extension, allowing the `$` operator to be omitted
   in some unambiguous contexts

 * An exciting new plugin mechanism, source plugins, allowing plugins to
   inspect and modify a wide variety of compiler representations.

 * Improved recompilation checking when plugins are used

 * Significantly better handling of macOS linker command size limits,
   avoiding linker errors while linking large projects

 * The next phase of the MonadFail proposal, enabling
   -XMonadFailDesugaring by default

A full list of the changes in this release can be found in the
release notes:

    https://downloads.haskell.org/~ghc/8.6.1/docs/html/users_guide/8.6.1-notes.html

Perhaps of equal importance, GHC 8.6 is the second major release made
under GHC's accelerated six-month release schedule and the first set of
binary distributions built primarily using our new continuous
integration scheme. While the final 8.6 release is around three weeks
later than initially scheduled due to late-breaking bug reports, we
expect that the 8.8 release schedule shouldn't be affected.

Thanks to everyone who has contributed to developing, documenting, and
testing this release!

As always, let us know if you encounter trouble.


How to get it
~~~~~~~~~~~~~

The easy way is to go to the web page, which should be self-explanatory:

        https://www.haskell.org/ghc/

We supply binary builds in the native package format for many
platforms, and the source distribution is available from the same
place.

Packages will appear as they are built - if the package for your
system isn't available yet, please try again later.


Background
~~~~~~~~~~

Haskell is a standard lazy functional programming language.

GHC is a state-of-the-art programming suite for Haskell.  Included is
an optimising compiler generating efficient code for a variety of
platforms, together with an interactive system for convenient, quick
development.  The distribution includes space and time profiling
facilities, a large collection of libraries, and support for various
language extensions, including concurrency, exceptions, and foreign
language interfaces. GHC is distributed under a BSD-style open source license.

A wide variety of Haskell related resources (tutorials, libraries,
specifications, documentation, compilers, interpreters, references,
contact information, links to research groups) are available from the
Haskell home page (see below).


On-line GHC-related resources
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Relevant URLs on the World-Wide Web:

GHC home page              https://www.haskell.org/ghc/
GHC developers' home page  https://ghc.haskell.org/trac/ghc/
Haskell home page          https://www.haskell.org/


Supported Platforms
~~~~~~~~~~~~~~~~~~~

The list of platforms we support, and the people responsible for them,
is here:

   https://ghc.haskell.org/trac/ghc/wiki/Contributors

Ports to other platforms are possible with varying degrees of
difficulty.  The Building Guide describes how to go about porting to a
new platform:

    https://ghc.haskell.org/trac/ghc/wiki/Building


Developers
~~~~~~~~~~

We welcome new contributors.  Instructions on accessing our source
code repository, and getting started with hacking on GHC, are
available from the GHC's developer's site run by Trac:

  https://ghc.haskell.org/trac/ghc/


Mailing lists
~~~~~~~~~~~~~

We run mailing lists for GHC users and bug reports; to subscribe, use
the web interfaces at

    https://mail.haskell.org/cgi-bin/mailman/listinfo/glasgow-haskell-users
    https://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-tickets

There are several other haskell and ghc-related mailing lists on
www.haskell.org; for the full list, see

    https://mail.haskell.org/cgi-bin/mailman/listinfo

Some GHC developers hang out on #haskell on IRC, too:

    https://www.haskell.org/haskellwiki/IRC_channel

Please report bugs using our bug tracking system.  Instructions on
reporting bugs can be found here:

    https://www.haskell.org/ghc/reportabug
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From hvriedel at gmail.com  Sat Sep 22 08:30:13 2018
From: hvriedel at gmail.com (Herbert Valerio Riedel)
Date: Sat, 22 Sep 2018 10:30:13 +0200
Subject: [ANNOUNCE] GHC 8.6.1 released
In-Reply-To: <87wore1h9i.fsf@smart-cactus.org> (Ben Gamari's message of "Fri, 
 21 Sep 2018 20:57:02 -0400")
References: <87wore1h9i.fsf@smart-cactus.org>
Message-ID: <877ejehr3e.fsf@gmail.com>

Hello everyone,

Here's an addendum to the announcment as it ommitted an important detail:

GHC 8.6.1 is only guaranteed to work properly with tooling which uses
lib:Cabal version 2.4.0.1 or later.

As such, GHC 8.6.1 works best with ​`cabal-install` 2.4.0.0 or later;
please upgrade to `cabal-install` 2.4.0.0 if you haven't already.

Note that cabal-install 2.4 supports all GHC versions back till GHC
7.0.4 and we also strongly recommend to use the latest available stable
release of `cabal` even with older GHC releases as bugfixes and
improvements aren't always backported to older Cabal releases as well as
to be able to benefit from recently added CABAL format features[8] (or
be able to access package releases on Hackage[9] which rely on those
features) which require recent enough versions of Cabal as well.

Note that binaries aren't available on cabal's download page[1] yet.

If you're on Ubuntu or Debian, you can get a compiled cabal-install 2.4
`.deb` package via Apt from

- https://launchpad.net/~hvr/+archive/ubuntu/ghc

or

- http://downloads.haskell.org/debian/

respectively.

Binary versions for macOS and Windows are also expected to become
available via [2] and [3] soon (and also at [1]).

In the meantime, if you already have GHC 7.10 or later (together with a
compatible `cabal` executable) installed, you can easily install cabal
2.4 yourself from Hackage[9] by invoking

    cabal install cabal-install-2.4.0.0

and making sure that the resulting `cabal` executable is accessible via
your $PATH; you can check with `cabal --version` which should emit
something along the lines of

    $ cabal --version
    cabal-install version 2.4.0.0
    compiled using version 2.4.0.1 of the Cabal library 



Finally, the Haskell Platform[4] release for GHC 8.6.1 should be
available soon as well which provides yet another recommended "standard
way to get GHC and related tools"[5] in a uniform way across multiple
operating systems. See [4] and [5] for more details about the standard
Haskell Platform distribution.


 [1]: https://www.haskell.org/cabal/download.html
 
 [2]: https://haskell.futurice.com/
 
 [3]: https://hub.zhox.com/posts/chocolatey-introduction/
 
 [4]: https://www.haskell.org/platform/
 
 [5]: https://mail.haskell.org/pipermail/ghc-devs/2015-July/009379.html

 [6]: https://launchpad.net/~hvr/+archive/ubuntu/ghc
 
 [7]: http://downloads.haskell.org/debian/

 [8]: https://cabal.readthedocs.io/en/latest/file-format-changelog.html

 [9]: http://hackage.haskell.org/
 

-- Herbert


On 2018-09-21 at 20:57:02 -0400, Ben Gamari wrote:
> Hello everyone,
>
> The GHC team is pleased to announce the availability of GHC 8.6.1, the
> fourth major release in the GHC 8 series. The source distribution, binary
> distributions, and documentation for this release are available at
>
>     https://downloads.haskell.org/~ghc/8.6.1
>
> The 8.6 release fixes over 400 bugs from the 8.4 series and introduces a
> number of exciting features. These most notably include:
>
>  * A new deriving mechanism, `deriving via`, providing a convenient way
>    for users to extend Haskell's typeclass deriving mechanism
>
>  * Quantified constraints, allowing forall quantification in constraint contexts
>
>  * An early version of the GHCi `:doc` command
>
>  * The `ghc-heap-view` package, allowing introspection into the
>    structure of GHC's heap
>
>  * Valid hole fit hints, helping the user to find terms to fill typed
>    holes in their programs
>
>  * The BlockArguments extension, allowing the `$` operator to be omitted
>    in some unambiguous contexts
>
>  * An exciting new plugin mechanism, source plugins, allowing plugins to
>    inspect and modify a wide variety of compiler representations.
>
>  * Improved recompilation checking when plugins are used
>
>  * Significantly better handling of macOS linker command size limits,
>    avoiding linker errors while linking large projects
>
>  * The next phase of the MonadFail proposal, enabling
>    -XMonadFailDesugaring by default
>
> A full list of the changes in this release can be found in the
> release notes:
>
>     https://downloads.haskell.org/~ghc/8.6.1/docs/html/users_guide/8.6.1-notes.html
>
> Perhaps of equal importance, GHC 8.6 is the second major release made
> under GHC's accelerated six-month release schedule and the first set of
> binary distributions built primarily using our new continuous
> integration scheme. While the final 8.6 release is around three weeks
> later than initially scheduled due to late-breaking bug reports, we
> expect that the 8.8 release schedule shouldn't be affected.
>
> Thanks to everyone who has contributed to developing, documenting, and
> testing this release!
>
> As always, let us know if you encounter trouble.
>
>
> How to get it
> ~~~~~~~~~~~~~
>
> The easy way is to go to the web page, which should be self-explanatory:
>
>         https://www.haskell.org/ghc/
>
> We supply binary builds in the native package format for many
> platforms, and the source distribution is available from the same
> place.
>
> Packages will appear as they are built - if the package for your
> system isn't available yet, please try again later.
>
>
> Background
> ~~~~~~~~~~
>
> Haskell is a standard lazy functional programming language.
>
> GHC is a state-of-the-art programming suite for Haskell.  Included is
> an optimising compiler generating efficient code for a variety of
> platforms, together with an interactive system for convenient, quick
> development.  The distribution includes space and time profiling
> facilities, a large collection of libraries, and support for various
> language extensions, including concurrency, exceptions, and foreign
> language interfaces. GHC is distributed under a BSD-style open source license.
>
> A wide variety of Haskell related resources (tutorials, libraries,
> specifications, documentation, compilers, interpreters, references,
> contact information, links to research groups) are available from the
> Haskell home page (see below).
>
>
> On-line GHC-related resources
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
> Relevant URLs on the World-Wide Web:
>
> GHC home page              https://www.haskell.org/ghc/
> GHC developers' home page  https://ghc.haskell.org/trac/ghc/
> Haskell home page          https://www.haskell.org/
>
>
> Supported Platforms
> ~~~~~~~~~~~~~~~~~~~
>
> The list of platforms we support, and the people responsible for them,
> is here:
>
>    https://ghc.haskell.org/trac/ghc/wiki/Contributors
>
> Ports to other platforms are possible with varying degrees of
> difficulty.  The Building Guide describes how to go about porting to a
> new platform:
>
>     https://ghc.haskell.org/trac/ghc/wiki/Building
>
>
> Developers
> ~~~~~~~~~~
>
> We welcome new contributors.  Instructions on accessing our source
> code repository, and getting started with hacking on GHC, are
> available from the GHC's developer's site run by Trac:
>
>   https://ghc.haskell.org/trac/ghc/
>
>
> Mailing lists
> ~~~~~~~~~~~~~
>
> We run mailing lists for GHC users and bug reports; to subscribe, use
> the web interfaces at
>
>     https://mail.haskell.org/cgi-bin/mailman/listinfo/glasgow-haskell-users
>     https://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-tickets
>
> There are several other haskell and ghc-related mailing lists on
> www.haskell.org; for the full list, see
>
>     https://mail.haskell.org/cgi-bin/mailman/listinfo
>
> Some GHC developers hang out on #haskell on IRC, too:
>
>     https://www.haskell.org/haskellwiki/IRC_channel
>
> Please report bugs using our bug tracking system.  Instructions on
> reporting bugs can be found here:
>
>     https://www.haskell.org/ghc/reportabug

From qdunkan at gmail.com  Sat Sep 22 22:44:24 2018
From: qdunkan at gmail.com (Evan Laforge)
Date: Sat, 22 Sep 2018 15:44:24 -0700
Subject: [ANNOUNCE] GHC 8.6.1 released
In-Reply-To: <87wore1h9i.fsf@smart-cactus.org>
References: <87wore1h9i.fsf@smart-cactus.org>
Message-ID: <CACbaDy5+qf0JXukROc2KhULnqon1-UeKK8c4iGrRoQmxzvhJ6w@mail.gmail.com>

Has anyone installed the OS X binary distribution?  I get:

"utils/ghc-cabal/dist-install/build/tmp/ghc-cabal-bindist" copy
libraries/ghc-prim dist-install "strip" '' '/usr/local'
'/usr/local/lib/ghc-8.6.1'
'/usr/local/share/doc/ghc-8.6.1/html/libraries' 'v p dyn'
dyld: Library not loaded: /usr/local/opt/gmp/lib/libgmp.10.dylib
  Referenced from:
/usr/local/src/hs/ghc-8.6.1/libraries/base/dist-install/build/libHSbase-4.12.0.0-ghc8.6.1.dylib
  Reason: image not found

otool -L on libHSBase indeed shows a reference to
/usr/local/opt/gmp/lib/libgmp.10.dylib, which of course doesn't exist,
not being a standard location.  otool on 8.4.2's libHSBase has no
reference to libgmp at all.  Both of them have
@rpath/libHSinteger-gmp-1.0.2.0-ghc$version.dylib, but perhaps that's
just ghc's binding to libgmp.

I don't actually know how ghc links libgmp nowadays.  Perhaps the
usual OS X build statically links libgmp and some flags got wrong for
this one and it wound up dynamic?
On Fri, Sep 21, 2018 at 5:57 PM Ben Gamari <ben at well-typed.com> wrote:
>
> Hello everyone,
>
> The GHC team is pleased to announce the availability of GHC 8.6.1, the
> fourth major release in the GHC 8 series. The source distribution, binary
> distributions, and documentation for this release are available at
>
>     https://downloads.haskell.org/~ghc/8.6.1
>
> The 8.6 release fixes over 400 bugs from the 8.4 series and introduces a
> number of exciting features. These most notably include:
>
>  * A new deriving mechanism, `deriving via`, providing a convenient way
>    for users to extend Haskell's typeclass deriving mechanism
>
>  * Quantified constraints, allowing forall quantification in constraint contexts
>
>  * An early version of the GHCi `:doc` command
>
>  * The `ghc-heap-view` package, allowing introspection into the
>    structure of GHC's heap
>
>  * Valid hole fit hints, helping the user to find terms to fill typed
>    holes in their programs
>
>  * The BlockArguments extension, allowing the `$` operator to be omitted
>    in some unambiguous contexts
>
>  * An exciting new plugin mechanism, source plugins, allowing plugins to
>    inspect and modify a wide variety of compiler representations.
>
>  * Improved recompilation checking when plugins are used
>
>  * Significantly better handling of macOS linker command size limits,
>    avoiding linker errors while linking large projects
>
>  * The next phase of the MonadFail proposal, enabling
>    -XMonadFailDesugaring by default
>
> A full list of the changes in this release can be found in the
> release notes:
>
>     https://downloads.haskell.org/~ghc/8.6.1/docs/html/users_guide/8.6.1-notes.html
>
> Perhaps of equal importance, GHC 8.6 is the second major release made
> under GHC's accelerated six-month release schedule and the first set of
> binary distributions built primarily using our new continuous
> integration scheme. While the final 8.6 release is around three weeks
> later than initially scheduled due to late-breaking bug reports, we
> expect that the 8.8 release schedule shouldn't be affected.
>
> Thanks to everyone who has contributed to developing, documenting, and
> testing this release!
>
> As always, let us know if you encounter trouble.
>
>
> How to get it
> ~~~~~~~~~~~~~
>
> The easy way is to go to the web page, which should be self-explanatory:
>
>         https://www.haskell.org/ghc/
>
> We supply binary builds in the native package format for many
> platforms, and the source distribution is available from the same
> place.
>
> Packages will appear as they are built - if the package for your
> system isn't available yet, please try again later.
>
>
> Background
> ~~~~~~~~~~
>
> Haskell is a standard lazy functional programming language.
>
> GHC is a state-of-the-art programming suite for Haskell.  Included is
> an optimising compiler generating efficient code for a variety of
> platforms, together with an interactive system for convenient, quick
> development.  The distribution includes space and time profiling
> facilities, a large collection of libraries, and support for various
> language extensions, including concurrency, exceptions, and foreign
> language interfaces. GHC is distributed under a BSD-style open source license.
>
> A wide variety of Haskell related resources (tutorials, libraries,
> specifications, documentation, compilers, interpreters, references,
> contact information, links to research groups) are available from the
> Haskell home page (see below).
>
>
> On-line GHC-related resources
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
> Relevant URLs on the World-Wide Web:
>
> GHC home page              https://www.haskell.org/ghc/
> GHC developers' home page  https://ghc.haskell.org/trac/ghc/
> Haskell home page          https://www.haskell.org/
>
>
> Supported Platforms
> ~~~~~~~~~~~~~~~~~~~
>
> The list of platforms we support, and the people responsible for them,
> is here:
>
>    https://ghc.haskell.org/trac/ghc/wiki/Contributors
>
> Ports to other platforms are possible with varying degrees of
> difficulty.  The Building Guide describes how to go about porting to a
> new platform:
>
>     https://ghc.haskell.org/trac/ghc/wiki/Building
>
>
> Developers
> ~~~~~~~~~~
>
> We welcome new contributors.  Instructions on accessing our source
> code repository, and getting started with hacking on GHC, are
> available from the GHC's developer's site run by Trac:
>
>   https://ghc.haskell.org/trac/ghc/
>
>
> Mailing lists
> ~~~~~~~~~~~~~
>
> We run mailing lists for GHC users and bug reports; to subscribe, use
> the web interfaces at
>
>     https://mail.haskell.org/cgi-bin/mailman/listinfo/glasgow-haskell-users
>     https://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-tickets
>
> There are several other haskell and ghc-related mailing lists on
> www.haskell.org; for the full list, see
>
>     https://mail.haskell.org/cgi-bin/mailman/listinfo
>
> Some GHC developers hang out on #haskell on IRC, too:
>
>     https://www.haskell.org/haskellwiki/IRC_channel
>
> Please report bugs using our bug tracking system.  Instructions on
> reporting bugs can be found here:
>
>     https://www.haskell.org/ghc/reportabug
> _______________________________________________
> Glasgow-haskell-users mailing list
> Glasgow-haskell-users at haskell.org
> http://mail.haskell.org/cgi-bin/mailman/listinfo/glasgow-haskell-users

From george.colpitts at gmail.com  Sun Sep 23 01:33:19 2018
From: george.colpitts at gmail.com (George Colpitts)
Date: Sat, 22 Sep 2018 22:33:19 -0300
Subject: [ANNOUNCE] GHC 8.6.1 released
In-Reply-To: <CACbaDy5+qf0JXukROc2KhULnqon1-UeKK8c4iGrRoQmxzvhJ6w@mail.gmail.com>
References: <87wore1h9i.fsf@smart-cactus.org>
 <CACbaDy5+qf0JXukROc2KhULnqon1-UeKK8c4iGrRoQmxzvhJ6w@mail.gmail.com>
Message-ID: <CAB-d4A4Scvqt1okcao6J0VeA8YOzU4k3PNpiKwoUavvLeOMdEQ@mail.gmail.com>

Yes, it worked for me.

On Sat, Sep 22, 2018 at 7:44 PM Evan Laforge <qdunkan at gmail.com> wrote:

> Has anyone installed the OS X binary distribution?  I get:
>
> "utils/ghc-cabal/dist-install/build/tmp/ghc-cabal-bindist" copy
> libraries/ghc-prim dist-install "strip" '' '/usr/local'
> '/usr/local/lib/ghc-8.6.1'
> '/usr/local/share/doc/ghc-8.6.1/html/libraries' 'v p dyn'
> dyld: Library not loaded: /usr/local/opt/gmp/lib/libgmp.10.dylib
>   Referenced from:
>
> /usr/local/src/hs/ghc-8.6.1/libraries/base/dist-install/build/libHSbase-4.12.0.0-ghc8.6.1.dylib
>   Reason: image not found
>
> otool -L on libHSBase indeed shows a reference to
> /usr/local/opt/gmp/lib/libgmp.10.dylib, which of course doesn't exist,
> not being a standard location.  otool on 8.4.2's libHSBase has no
> reference to libgmp at all.  Both of them have
> @rpath/libHSinteger-gmp-1.0.2.0-ghc$version.dylib, but perhaps that's
> just ghc's binding to libgmp.
>
> I don't actually know how ghc links libgmp nowadays.  Perhaps the
> usual OS X build statically links libgmp and some flags got wrong for
> this one and it wound up dynamic?
> On Fri, Sep 21, 2018 at 5:57 PM Ben Gamari <ben at well-typed.com> wrote:
> >
> > Hello everyone,
> >
> > The GHC team is pleased to announce the availability of GHC 8.6.1, the
> > fourth major release in the GHC 8 series. The source distribution, binary
> > distributions, and documentation for this release are available at
> >
> >     https://downloads.haskell.org/~ghc/8.6.1
> >
> > The 8.6 release fixes over 400 bugs from the 8.4 series and introduces a
> > number of exciting features. These most notably include:
> >
> >  * A new deriving mechanism, `deriving via`, providing a convenient way
> >    for users to extend Haskell's typeclass deriving mechanism
> >
> >  * Quantified constraints, allowing forall quantification in constraint
> contexts
> >
> >  * An early version of the GHCi `:doc` command
> >
> >  * The `ghc-heap-view` package, allowing introspection into the
> >    structure of GHC's heap
> >
> >  * Valid hole fit hints, helping the user to find terms to fill typed
> >    holes in their programs
> >
> >  * The BlockArguments extension, allowing the `$` operator to be omitted
> >    in some unambiguous contexts
> >
> >  * An exciting new plugin mechanism, source plugins, allowing plugins to
> >    inspect and modify a wide variety of compiler representations.
> >
> >  * Improved recompilation checking when plugins are used
> >
> >  * Significantly better handling of macOS linker command size limits,
> >    avoiding linker errors while linking large projects
> >
> >  * The next phase of the MonadFail proposal, enabling
> >    -XMonadFailDesugaring by default
> >
> > A full list of the changes in this release can be found in the
> > release notes:
> >
> >
> https://downloads.haskell.org/~ghc/8.6.1/docs/html/users_guide/8.6.1-notes.html
> >
> > Perhaps of equal importance, GHC 8.6 is the second major release made
> > under GHC's accelerated six-month release schedule and the first set of
> > binary distributions built primarily using our new continuous
> > integration scheme. While the final 8.6 release is around three weeks
> > later than initially scheduled due to late-breaking bug reports, we
> > expect that the 8.8 release schedule shouldn't be affected.
> >
> > Thanks to everyone who has contributed to developing, documenting, and
> > testing this release!
> >
> > As always, let us know if you encounter trouble.
> >
> >
> > How to get it
> > ~~~~~~~~~~~~~
> >
> > The easy way is to go to the web page, which should be self-explanatory:
> >
> >         https://www.haskell.org/ghc/
> >
> > We supply binary builds in the native package format for many
> > platforms, and the source distribution is available from the same
> > place.
> >
> > Packages will appear as they are built - if the package for your
> > system isn't available yet, please try again later.
> >
> >
> > Background
> > ~~~~~~~~~~
> >
> > Haskell is a standard lazy functional programming language.
> >
> > GHC is a state-of-the-art programming suite for Haskell.  Included is
> > an optimising compiler generating efficient code for a variety of
> > platforms, together with an interactive system for convenient, quick
> > development.  The distribution includes space and time profiling
> > facilities, a large collection of libraries, and support for various
> > language extensions, including concurrency, exceptions, and foreign
> > language interfaces. GHC is distributed under a BSD-style open source
> license.
> >
> > A wide variety of Haskell related resources (tutorials, libraries,
> > specifications, documentation, compilers, interpreters, references,
> > contact information, links to research groups) are available from the
> > Haskell home page (see below).
> >
> >
> > On-line GHC-related resources
> > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> >
> > Relevant URLs on the World-Wide Web:
> >
> > GHC home page              https://www.haskell.org/ghc/
> > GHC developers' home page  https://ghc.haskell.org/trac/ghc/
> > Haskell home page          https://www.haskell.org/
> >
> >
> > Supported Platforms
> > ~~~~~~~~~~~~~~~~~~~
> >
> > The list of platforms we support, and the people responsible for them,
> > is here:
> >
> >    https://ghc.haskell.org/trac/ghc/wiki/Contributors
> >
> > Ports to other platforms are possible with varying degrees of
> > difficulty.  The Building Guide describes how to go about porting to a
> > new platform:
> >
> >     https://ghc.haskell.org/trac/ghc/wiki/Building
> >
> >
> > Developers
> > ~~~~~~~~~~
> >
> > We welcome new contributors.  Instructions on accessing our source
> > code repository, and getting started with hacking on GHC, are
> > available from the GHC's developer's site run by Trac:
> >
> >   https://ghc.haskell.org/trac/ghc/
> >
> >
> > Mailing lists
> > ~~~~~~~~~~~~~
> >
> > We run mailing lists for GHC users and bug reports; to subscribe, use
> > the web interfaces at
> >
> >
> https://mail.haskell.org/cgi-bin/mailman/listinfo/glasgow-haskell-users
> >     https://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-tickets
> >
> > There are several other haskell and ghc-related mailing lists on
> > www.haskell.org; for the full list, see
> >
> >     https://mail.haskell.org/cgi-bin/mailman/listinfo
> >
> > Some GHC developers hang out on #haskell on IRC, too:
> >
> >     https://www.haskell.org/haskellwiki/IRC_channel
> >
> > Please report bugs using our bug tracking system.  Instructions on
> > reporting bugs can be found here:
> >
> >     https://www.haskell.org/ghc/reportabug
> > _______________________________________________
> > Glasgow-haskell-users mailing list
> > Glasgow-haskell-users at haskell.org
> > http://mail.haskell.org/cgi-bin/mailman/listinfo/glasgow-haskell-users
> _______________________________________________
> Glasgow-haskell-users mailing list
> Glasgow-haskell-users at haskell.org
> http://mail.haskell.org/cgi-bin/mailman/listinfo/glasgow-haskell-users
>
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From juhpetersen at gmail.com  Mon Sep 24 07:09:13 2018
From: juhpetersen at gmail.com (Jens Petersen)
Date: Mon, 24 Sep 2018 16:09:13 +0900
Subject: [ANNOUNCE] GHC 8.6.1 released
In-Reply-To: <87wore1h9i.fsf@smart-cactus.org>
References: <87wore1h9i.fsf@smart-cactus.org>
Message-ID: <CAEDGBqJqG0sWFv9tZ6zjh_tunuJ0kZgasD6F4Xw1Hg9574aoeg@mail.gmail.com>

I have built 8.6.1 for Fedora 27, 28, 29, Rawhide, and EPEL7 in:

https://copr.fedorainfracloud.org/coprs/petersen/ghc-8.6.1/

The repo also includes latest cabal-install.

Thanks for the release!
Jens
On Sat, 22 Sep 2018 at 09:58, Ben Gamari <ben at well-typed.com> wrote:
>
> Hello everyone,
>
> The GHC team is pleased to announce the availability of GHC 8.6.1, the
> fourth major release in the GHC 8 series. The source distribution, binary
> distributions, and documentation for this release are available at
>
>     https://downloads.haskell.org/~ghc/8.6.1
>
> The 8.6 release fixes over 400 bugs from the 8.4 series and introduces a
> number of exciting features. These most notably include:
>
>  * A new deriving mechanism, `deriving via`, providing a convenient way
>    for users to extend Haskell's typeclass deriving mechanism
>
>  * Quantified constraints, allowing forall quantification in constraint contexts
>
>  * An early version of the GHCi `:doc` command
>
>  * The `ghc-heap-view` package, allowing introspection into the
>    structure of GHC's heap
>
>  * Valid hole fit hints, helping the user to find terms to fill typed
>    holes in their programs
>
>  * The BlockArguments extension, allowing the `$` operator to be omitted
>    in some unambiguous contexts
>
>  * An exciting new plugin mechanism, source plugins, allowing plugins to
>    inspect and modify a wide variety of compiler representations.
>
>  * Improved recompilation checking when plugins are used
>
>  * Significantly better handling of macOS linker command size limits,
>    avoiding linker errors while linking large projects
>
>  * The next phase of the MonadFail proposal, enabling
>    -XMonadFailDesugaring by default
>
> A full list of the changes in this release can be found in the
> release notes:
>
>     https://downloads.haskell.org/~ghc/8.6.1/docs/html/users_guide/8.6.1-notes.html
>
> Perhaps of equal importance, GHC 8.6 is the second major release made
> under GHC's accelerated six-month release schedule and the first set of
> binary distributions built primarily using our new continuous
> integration scheme. While the final 8.6 release is around three weeks
> later than initially scheduled due to late-breaking bug reports, we
> expect that the 8.8 release schedule shouldn't be affected.
>
> Thanks to everyone who has contributed to developing, documenting, and
> testing this release!
>
> As always, let us know if you encounter trouble.
>
>
> How to get it
> ~~~~~~~~~~~~~
>
> The easy way is to go to the web page, which should be self-explanatory:
>
>         https://www.haskell.org/ghc/
>
> We supply binary builds in the native package format for many
> platforms, and the source distribution is available from the same
> place.
>
> Packages will appear as they are built - if the package for your
> system isn't available yet, please try again later.
>
>
> Background
> ~~~~~~~~~~
>
> Haskell is a standard lazy functional programming language.
>
> GHC is a state-of-the-art programming suite for Haskell.  Included is
> an optimising compiler generating efficient code for a variety of
> platforms, together with an interactive system for convenient, quick
> development.  The distribution includes space and time profiling
> facilities, a large collection of libraries, and support for various
> language extensions, including concurrency, exceptions, and foreign
> language interfaces. GHC is distributed under a BSD-style open source license.
>
> A wide variety of Haskell related resources (tutorials, libraries,
> specifications, documentation, compilers, interpreters, references,
> contact information, links to research groups) are available from the
> Haskell home page (see below).
>
>
> On-line GHC-related resources
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
> Relevant URLs on the World-Wide Web:
>
> GHC home page              https://www.haskell.org/ghc/
> GHC developers' home page  https://ghc.haskell.org/trac/ghc/
> Haskell home page          https://www.haskell.org/
>
>
> Supported Platforms
> ~~~~~~~~~~~~~~~~~~~
>
> The list of platforms we support, and the people responsible for them,
> is here:
>
>    https://ghc.haskell.org/trac/ghc/wiki/Contributors
>
> Ports to other platforms are possible with varying degrees of
> difficulty.  The Building Guide describes how to go about porting to a
> new platform:
>
>     https://ghc.haskell.org/trac/ghc/wiki/Building
>
>
> Developers
> ~~~~~~~~~~
>
> We welcome new contributors.  Instructions on accessing our source
> code repository, and getting started with hacking on GHC, are
> available from the GHC's developer's site run by Trac:
>
>   https://ghc.haskell.org/trac/ghc/
>
>
> Mailing lists
> ~~~~~~~~~~~~~
>
> We run mailing lists for GHC users and bug reports; to subscribe, use
> the web interfaces at
>
>     https://mail.haskell.org/cgi-bin/mailman/listinfo/glasgow-haskell-users
>     https://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-tickets
>
> There are several other haskell and ghc-related mailing lists on
> www.haskell.org; for the full list, see
>
>     https://mail.haskell.org/cgi-bin/mailman/listinfo
>
> Some GHC developers hang out on #haskell on IRC, too:
>
>     https://www.haskell.org/haskellwiki/IRC_channel
>
> Please report bugs using our bug tracking system.  Instructions on
> reporting bugs can be found here:
>
>     https://www.haskell.org/ghc/reportabug
> _______________________________________________
> ghc-devs mailing list
> ghc-devs at haskell.org
> http://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-devs

From ben at well-typed.com  Mon Sep 24 13:36:38 2018
From: ben at well-typed.com (Ben Gamari)
Date: Mon, 24 Sep 2018 08:36:38 -0500
Subject: [ANNOUNCE] GHC 8.6.1 released
In-Reply-To: <CAEDGBqJqG0sWFv9tZ6zjh_tunuJ0kZgasD6F4Xw1Hg9574aoeg@mail.gmail.com>
References: <87wore1h9i.fsf@smart-cactus.org>
 <CAEDGBqJqG0sWFv9tZ6zjh_tunuJ0kZgasD6F4Xw1Hg9574aoeg@mail.gmail.com>
Message-ID: <4E0D6D6B-0F2F-4070-A22E-8336A7905667@well-typed.com>



On September 24, 2018 2:09:13 AM CDT, Jens Petersen <juhpetersen at gmail.com> wrote:
>I have built 8.6.1 for Fedora 27, 28, 29, Rawhide, and EPEL7 in:
>
>https://copr.fedorainfracloud.org/coprs/petersen/ghc-8.6.1/
>
>The repo also includes latest cabal-install.
>
Thanks Jens! This is a very helpful service. 

Cheers, 

- Ben 


-- 
Sent from my Android device with K-9 Mail. Please excuse my brevity.