Milan just pushed all the following patches directly to the containers repo, and closed all the tickets associated with the effort. * Fix warnings in Data.Map and Data.Set. * Finish the started worker/wrapper transformation. * Merge all the OPTIONS and LANGUAGE module pragmas. * Remove most INLINE from Map, Set, IntMap and IntSet. * Comment tests and benchmarks on foldlWithKey' * Worker/wrapper transformation for Data.IntSet. * Compile only the benchmark source, not the Data/*.hs. * Add criterion-based benchmark for IntSet.hs * Add a testsuite for Data.IntSet. * Further improve Data.Set balance function * Further improve Data.Map balance function * Changing delta to 3 in Data.Set. * Changing delta to 3 in Data.Map. * Correct Data.Set Arbitrary instance never to return unbalanced trees. * Correct Data.Map Arbitrary instance never to return unbalanced trees. * Improve Data.Set benchmark. * Improve benchmark infrastructure and Data.Map benchmark * Improve the performance of Data.Set balance function * Improve the performance of Data.Map balance function. * Improve performance of Data.Set union and difference operations * Improve performance of Data.Map union* and difference operations * Make the Set store the elements evaluated (bang added). Have *any* of these patches been proposed for review? containers is a critical library, and under libraries@ maintainance. This is not what you do prior to a release. Ian, Simon M.: did you get a chance to sign off on this? -- Don