. Fix iterator based access
. Add new attribute ATTR_DEFAULT_FETCH_MODE: $bdh->setAttribute()
. Add new fetch mode: FETCH_PROPS_LATE, this fills object member
variables after calling the constructor (fixes#36428).
Still more to come. Give it a couple of days before starting to write drivers
for the other databases; a few things might change, so I'd like to coordinate
that, but in a couple of days.