Hello all, I would like to announce my attempt at making a Unicode version of Data.ByteString. The library is named Data.CompactString to avoid conflict with other (Fast)PackedString libraries. The library uses a variable length encoding (1 to 3 bytes) of Chars into Word8s, which are then stored in a ByteString. The structure is very much based on Data.ByteString, most of the implementation is copied from there. Hopefully this means that fusion rules could be copied as well. This is kind of a pre-release, many functions are still missing, and I have not benchmarked yet. I am releasing this in the hopes of getting some feedback on the general idea. Homepage: http://twan.home.fmf.nl/compact-string/ Haddock: http://twan.home.fmf.nl/compact-string/doc/html/ Source: darcs get http://twan.home.fmf.nl/repos/compact-string Twan van Laarhoven