Starting with tag:
[TAG 1.2.3
Bryan O'Sullivan <bos@serpentine.com>**20080821001106] 
[Add timing tests
Bryan O'Sullivan <bos@serpentine.com>**20080822215144] 
[Add support for parallel strategies
Bryan O'Sullivan <bos@serpentine.com>**20080822221747] 
[Inline the use of with.
Bryan O'Sullivan <bos@serpentine.com>**20080822235131] 
[Split out doubleHash into a top-level function.
Bryan O'Sullivan <bos@serpentine.com>**20080822235234] 
[Hash lazy ByteStrings more efficiently.
Bryan O'Sullivan <bos@serpentine.com>**20080822235439] 
[Cleanup.
Bryan O'Sullivan <bos@serpentine.com>**20080822235544] 
[Test lazy ByteString properties on different chunk boundaries.
Bryan O'Sullivan <bos@serpentine.com>**20080824223545] 
[Improve hash performance on lazy bytestrings by ~20%
Bryan O'Sullivan <bos@serpentine.com>**20080829160111] 
[Bump version
Bryan O'Sullivan <bos@serpentine.com>**20080829160423] 
[TAG 1.2.4
Bryan O'Sullivan <bos@serpentine.com>**20080829160427]