Nothing much. The sea lion exhibit was reformed to house hippos, the old white-lipped peccary enclosure became an alpaca paddock, the flamingo pond was covered up (and a few more animals were added to the enclosure), the anacondas were replaced by a few animals of the Cerrado, a new area for owls (including the only Eurasian eagle and snowy owls in a Brazilian zoo) was inaugurated, a new axolotl exhibit was built (Xochilmico Space, definitely the most modern area of the zoo), the warthogs are now in the cassowary pen (the cassowary has been moved to a new aviary and there is a fallow doe in the former warthog enclosure), the orangutan was moved to the former gorilla grotto, the chimpanzee complex was reformed (the wall of the former orangutan exhibit was torn down), the otters were replaced by penguins and the Aldabra giant tortoises were moved to the former addax paddock. The former African elephant exhibit is also under maintenance and the buildings were painted brown.
Recent deaths include an Asian elephant, caracals and servals and new residents include turacos (three species) and Spix's macaws (off-show)
Despite all of these changes, FPZSP has been losing animals (and visitors thanks to Animália Park) like crazy and is not what it once used to be in terms of world relevance. Almost none of the enclosures are among the best in the country for their respective residents and actually, a few are among the worst. Taking into the account the behemoth it used to be, it is sad to see the zoo become a "gourmet" experience with little conservation value after it was privatized.