[ANNOUNCE] GHC 8.4.2 released

[Wolfgang Jeltsch]

Am Donnerstag, den 19.04.2018, 20:01 -0400 schrieb Ben Gamari:
> Hello everyone,
> 
> The GHC team is pleased to announce the availability of GHC 8.4.2. The
> source distribution, binary distributions, and documentation for this
> release are available at
> 
>     https://downloads.haskell.org/~ghc/8.4.2
> 
> This release is a bug-fix release, fixing numerous regressions and
> bugs present in GHC 8.4.1. These include:
> 
>  * A regression resulting in some uses of `Control.Exception.evaluate`
>    to be inappropriately optimised away (see #13930)
> 
>  * A regression resulting in segmentation faults of programs compiled
>    with profiling (#14705)
> 
>  * A bug causing runtime system panics while running programs with
>    retainer profiling (#14947)
> 
>  * The configure scripts now accepts a `--disable-dtrace` option, 
>    again allowing GHC to be bootstrapped on FreeBSD (#15040)
> 
>  * The version number of the `base` package has been bumped to
>    4.11.1.0 to reflect the addition of the `GHC.IO.FixIOException` 
>    type. This interface was added in 8.4.1 but the version bump was 
>    missed due to an oversight.
> 
>  * Support for DWARF debug information has been significantly improved
>    (#14894, #14779)
> 
> A more thorough list of the changes in this release can be found in
> the release notes,
> 
>   https://downloads.haskell.org/~ghc/8.4.2/docs/html/users_guide/8.4.2-notes.html

What about #15005? It is closed as fixed but not mentioned in the
release notes.

All the best,
Wolfgang