[THINGS THAT MAY BREAK YOUR CODE]

• Added a 5th, optional parameter to WWW::Mechanize::Link's
  constructor. In 0.71_01, it was at the beginning of the
  argument list and was required. Now it's at the end and is
  optional. If, in the 15 hours since 0.71_01 came out, you
  went and changed all your WWW::Mechanize::Link constructors,
  you'll have to change them around again. Otherwise, you can
  just ignore this change.