Release Notes: This release accommodates ambiguous use of "Files x and y differ" message by older versions of diffutils between 2.8.4 and 3.0.
Release Notes: This release adds a "-K" option which provides more information about files which were added or removed by a patch. It also improves pathname merging for multiple changes to a given file. There are other bugfixes.
Release Notes: This release adds a "-R" option, like patch's option to show reversed differences. There are also documentation and portability fixes.
Release Notes: This release corrects display for -S/-D options, i.e. calculation of unchanged lines.
Release Notes: A regression in the "-c" option from 1.52 changes was fixed.