[ANN] bytestring-0.11.5.0 and bytestring-0.12.0.0

[Matthew Craven]

On behalf of the maintainers team I'm happy to announce that two new
bytestring versions have been released:

* bytestring-0.11.5.0 is expected to be the last release in the
bytestring-0.11 series.
* bytestring-0.12.0.0 bundles all of the planned breaking changes that
have been in the pipeline for the last few years.

Highlights from the changelog
(https://github.com/haskell/bytestring/blob/0.12.0.0/Changelog.md):

* Some recently-discovered bugs in the SIMD implementations of
isValidUtf8 have been fixed.
* With bytestring-0.12.0.0, ShortByteString can now be safely coerced
to or from the ByteArray type.
* Many functions returning StrictByteString can now return their
results unboxed.


Many people contributed their time and effort to make this release
happen. Thanks to all of them! Just to name a few, in no particular
order:

* Viktor Dukhovni
* Vaibhav Sagar
* Simon Jakobi
* Matthew Craven
* Andrew Lelechenko
* Sergey Vinokurov
* Koz Ross
* Every contributor to past bytestring releases

Happy Haskelling!
~-Matthew Craven