GHC 8.2.2 is available

Ben Gamari - 2017-11-21

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 portable.

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 (#13945)

  • GHC again supports production of position-independent executables (#13702)

  • Better error messages around kind mismatches (#11198, #12373, #13530, #13610)

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

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 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.

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