Version 0.19: This release improves the text diff prepare stage to allow a better selection of the lines to be marked as changed. Released on Apr 11  2006.
Version 0.20: No release notes found. Released on Apr 14  2006.
Version 0.21: This release implements Rabin's polynomial binary diffs, and improves text diff generation by performing hunk merging and consolidation. Released on Apr 25  2006.
Version 0.22: A bug in indexing on 64-bit machines was fixed. Released on Oct 28  2006.
Version 0.23: Improved performance a in few corner case patterns and in cases where there is a huge input file. Some code cleanup. Released on Nov 12  2008.