bsdiff was originally written by:

  Colin Percival <cperciva [@at] freebsd [.dot] org>

Current maintainer, target of blame:

  Austin Seipp <aseipp [@at] pobox [.dot] com>

People who contributed code, ideas or lively discussion include, in no
particular order:

  Tres Walsh <tres [.dot] walsh [@at] mnmlstc [dot] com>
  Ray Cheung <ray [.dot] swc [@at] gmail [dot] com>

If you're not mentioned above but would like to be, please contact me.