[ANNOUNCE] GHC 8.2.2 released

Ben Gamari ben at well-typed.com
Tue Nov 21 22:00:36 UTC 2017

            The Glasgow Haskell Compiler -- version 8.2.2

The GHC Team is pleased to announce a new minor release of GHC. This release
builds on the performance and stability improvements of 8.2.1, fixing a variety
of correctness bugs, improving error messages, and making the compiler more

Notable bug-fixes include

 * A correctness issue resulting in segmentation faults in some
   FFI-users (#13707, #14346)

 * A correctness issue resulting in undefined behavior in some programs
   using STM (#14171)

 * A bug which may have manifested in segmentation faults in
   out-of-memory condition (#14329)

 * clearBit of Natural no longer bottoms (#13203)

 * A specialisation bug resulting in exponential blowup of compilation
   time in some specialisation-intensive programs (#14379)

 * ghc-pkg now works even in environments with misconfigured NFS mounts

 * GHC again supports production of position-independent executables

 * Better error messages around kind mismatches (#11198, #12373, #13530,

A thorough list of the changes in the release can be found in the release


How to get it

This release can be downloaded from


For older versions see


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


Haskell is a standardized 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
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Ports to other platforms are possible with varying degrees of difficulty. The
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