- Incompatible change: zero-length files no longer duplicates by default
- New -z/--zeromatch option to consider zero-length files as duplicates
- I/O chunk size changed for better performance
- The PROGRAM_NAME variable is now used properly during make
- Program was re-organized into several split C files
NOTICE: This release's binaries have been updated to a newer version of the code to fix an array overflow bug. All binary releases with this bug will be deleted.