[ANNOUNCE] GHC 8.4.4 released

Ben Gamari ben at well-typed.com
Sun Oct 14 22:17:12 UTC 2018

Hello everyone,
The GHC team is pleased to announce the availability of GHC 8.4.4, a
patch-level release in the 8.4 series. The source distribution, binary
distributions, and documentation for this release are available at


This release fixes several bugs present in 8.4.3 These include,

  - A bug which could result in memory unsafety with certain uses of
    `touch#` has been resolved. (#14346)

  - A compiler panic triggered by some GADT record updates has been
    fixed (#15499)

  - The `text` library has been updated, fixing several serious bugs in
    the version shipped with GHC 8.4.3 (see `text` issues #227, #221,
    and #197.

  - A serious code generation bug in the LLVM code generation,
    potentially resulting in incorrect evaluation of floating point
    expressions, has been fixed (#14251)

As always, the full release notes can be found in the users guide,


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:


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

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


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:


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



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:


Mailing lists

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


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


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


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

-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 487 bytes
Desc: not available
URL: <http://mail.haskell.org/pipermail/glasgow-haskell-users/attachments/20181014/f15579bc/attachment.sig>

More information about the Glasgow-haskell-users mailing list