Fellow Haskellers! I am pleased to announce the 4th (and with any luck, final) release candidate for Edison 1.2. Edison is a library of efficient data structures for Haskell. Changes from RC3 include: * introduce strict/strictWith operations for all APIs * add Ord* instances for PatriciaLoMap and TernaryTrie * add David F. Place's EnumSet implementation * complete the FiniteMap unit test coverage and fix a bunch of bugs in finite map implementations * add 'symmetricDifference' to Collection and Associated Collection APIs * add Ord instances for data structures * add Monoid instances for data structures * Edison now requires Cabal 1.1.4 to build The project homepage is located at: http://www.eecs.tufts.edu/~rdocki01/edison.html API docs are located at: http://www.eecs.tufts.edu/~rdocki01/docs/edison/index.html And the darcs repository is located at: http://www.eecs.tufts.edu/~rdocki01/edison/ As before, comments are welcome, particularly comments relating to the API. However, barring major disasters I may have overlooked, I hope to release RC4 as 1.2, essentially unchanged. Thanks, Rob Dockins