[boost] BOOST_CHECK_EQUAL_COLLECTIONS changed?

Has BOOST_CHECK_EQUAL_COLLECTIONS been changed to take 4 parameters? I would actually support this change if it makes the macro more robust (it should IMO), but there's been no mention of this on the list as a breaking change, and the Boost.Test docs still refer to the 3 argument version, so at the moment it's not clear what those of us whose test-code has been broken should do about this :-( John.