Say what???
The very document you posted under this statement proves otherwise. Plenary Indulgences still exist and operate as always. Partial Indulgences still exist, but the Sovereign Pontiff changed how the "measure" for "partial" is done by simplifying it.
Namely, rather than use the confusing method of saying "If you perform such and such under proper conditions and good intent, etc., this will give you a partial indulgence equivalent to a Bishop in the early Church taking 350 days off the time a penitent (guilty of earlier apostasy to avoid death in persecution) was barred from receiving the Eucharist as penance and proof of his/her commitment to a return to Christ, etc." The Church now just says "You get a partial indulgence".
Furthermore, the Pontiff, per his authority from Christ, updated the list of what those indulgences should be for this time in history. You should not be surprised at this, expecting that it will occur in the future as well, as it has in the past.
The "post" button is screwing with me...