## Thread-hierarchy 0.3.0.1

* Move to hpack from hand written cabal project file

## Thread-hierarchy 0.3.0.0
* Back to basic.  Unlifted APIs to IO.

## Thread-hierarchy 0.2.0.0
* Improved implementation of previous fix.
* No longer expose constructor of ThreadMap.

## Thread-hierarchy 0.1.0.3
* Fixed BlockedIndefinitelyOnMVar under race condition.

## Thread-hierarchy 0.1.0.2
* Fixed space leaks in map operation.

## Thread-hierarchy 0.1.0.1
* Timing dependencies are removed from tests.

## Thread-hierarchy 0.1.0.0

* Initial release.