On behalf of the maintainers team I'm happy to announce that bytestring-0.11.4.0 (http://hackage.haskell.org/package/bytestring-0.11.4.0) is finally released.
Highlights from the changelog (https://github.com/haskell/bytestring/blob/0.11.4.0/Changelog.md):

* A serious bug in `instance Lift ShortByteString` has been fixed.
* `Builder` literals no longer break `warp` versions older than 3.3.22 by demanding too large of a buffer.
* `unsafeIndex` is once again exported from Data.ShortByteString.Internal.
* Many operations on `ShortByteString` have been made much more efficient.

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:

* Alexander Biehl
* Xia Li-yao
* Sergey Vinokurov
* Viktor Dukhovni
* Julian Ospald
* Andreas Klebinger
* Simon Jakobi
* Andrew Lelechenko
* every contributor to the older bytestring releases

Happy Haskelling!
~-Matthew Craven

(Hopefully the send is successful this time!)