I gathered the Mantis fixes captured by "Issue 35: 7084CollectionEnh (M1660 M1602)" This is a relatively large change as it includes 4 mantis reports. The first one improves performance when writing on a RWBinaryOrTextStream. The second three issues are related to interval inclusion tests that were buggy. http://code.google.com/p/pharo/issues/detail?id=35 Please review and check that I have not done any mistakes (there are a different revisions of changes sets on Mantis, which is confusing). Thanks Adrian ___________________ http://www.adrian-lienhard.ch/