I'm pleased to announce the release of version 0.1.0 of pipes-core, a library for efficient, safe and compositional IO, similar in scope to iteratee and conduits. http://hackage.haskell.org/package/pipes-core This release fixes a mistake in the previous version which violated the category laws in certain cases. I have now written a fairly explicit proof of the category laws for the current implementation, which I'll try to keep updated as the library evolves: https://github.com/pcapriotti/pipes-core/wiki/Category-laws-for-pipes --- # CHANGELOG for pipes-core: ## Version 0.1.0 - Significant simplification of the internals. - Removed `ensure` primitive. # CHANGELOG for pipes-extra: ## Version 0.1.0 - Improved naming in Control.Pipe.Coroutine. - Replaced ChunkPipe with PutbackPipe. --- BR, Paolo Capriotti