- New option: --reuse <directory or torrent file> copies piece hashes from an
  existing torrent file if it contains the same files. If given a directory,
  it is recursively searched for a matching torrent file.
- The short flag -R for --nocreator was renamed to -A so -R can be used for
  --noreuse.
- When verifying files against a torrent in previous versions, each file was
  only verified up to the first corrupt piece unless --verbose was given. Now
  all files are always completely verified.
- The "Files" field in --json output is now a list of objects like this:
  {"Path": <relative file path>, "Size": <file size>}
- Bugfix: The --max-piece-size parameter was always used as the actual piece
  size, even if it was much too large for the given content.