Not exactly true. They are still maintaining all tackle world records on these fish but they are eliminating line class, tippet, and junior angling awards on these fish.
https://www.igfa.org/News/ruleschange2017
CHANGES TO RECOGNIZED GAME FISH SPECIES
Eligible Game Fish Species
The IGFA maintains All-Tackle world records for thousands of different species, however only certain game fish species are eligible for the additional line class, tippet class (fly rod), and Junior Angler world record categories. In an effort to better recognize premier game fish species around the world that merit having line classes, the IGFA will no longer be accepting line class, tippet class (fly rod), and Junior Angler world records on the 45 species of freshwater and saltwater fish listed below:
Freshwater: rock bass, shoal bass, white bass, yellow bass, bluegill, black bullhead, brown bullhead, yellow bullhead, burbot, white catfish, black crappie, white crappie, freshwater drum, Florida gar, shortnose gar, spotted gar, oscar, European perch, white perch, yellow perch, chain pickerel, red piranha, shorthead redhorse, silver redhorse, sauger, American shad, hickory shad, splake, green sunfish, redbreast sunfish, redear sunfish, tench, warmouth, lake whitefish, mountain whitefish, round whitefish
Saltwater: Pacific barracuda, black seabass, Japanese parrotperch, spotted parrotperch, Florida pompano, doublespotted queenfish, black-blue rockfish, Atlantic spadefish, oxeye tarpon
This change is effective April 1, 2017.