[ANNOUNCE] GHC 8.2.2 release candidate 3

[Ben Gamari]

Hello everyone,

The GHC team is very pleased to announce the third candidate of the
8.2.2 release of the Glasgow Haskell Compiler. Source and binary
distributions are available at

    https://downloads.haskell.org/~ghc/8.2.2-rc3/

This is the third and last of three release candidates leading up the
final 8.2.2 release. This release fixes approximately fifty bugs present
in 8.2.1. These most notably 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)

See [1] for the full list.

Release candidate three contains only two patches not present in -rc2
but fixes a packaging issue which lead to unintentional downgrading the
process and Cabal libraries.

As always, please report any issues you encounter.

Happy testing,

- Ben

[1]
https://ghc.haskell.org/trac/ghc/query?status=closed&milestone=8.2.2&col=id&col=summary&col=status&col=type&col=priority&col=milestone&col=component&order=priority
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