Hi, The version of network-2.2.1 that shipped with GHC 6.10 differs from the one on Hackage [1]. The version that was released with GHC was never uploaded to Hackage and was never tagged in the darcs repository. When making a new release of network I forgot to check the version number on the version of network that shipped with GHC. My appologies. If you want the API additions that are present in network-2.2.1 on Hackage use network-2.2.1.1 instead to make sure that e.g. cabal-install doesn't use the version of network that comes with GHC. In the future there won't be any releases directly from the darcs repo. All releases will be made on Hackage to later be picked up by the Haskell Platform. Cheers, Johan 1. http://hackage.haskell.org/cgi-bin/hackage-scripts/package/network-2.2.1