* Git: :tag:`concurrency-1.8.0.0`
* Hackage: :hackage:`concurrency-1.8.0.0`

Added
~~~~~

* ``MonadFail`` instances for ``Control.Monad.Conc.Class.IsConc`` and
  ``Control.Monad.STM.IsSTM``.

Changed
~~~~~~~

* Added ``MonadFail`` constraints to
  ``Control.Concurrent.Classy.QSem.newQSem`` and
  ``Control.Concurrent.Classy.QSemN.newQSemN``.

Miscellaneous
~~~~~~~~~~~~~

* Fixed a compilation error with GHC 8.8