Complex sentence: In 2017, the Cat Classification Task Force of the Cat Specialist Group revised felid taxonomy, and now recognizes the extinct Bali and Javan tiger populations, as well as the Sumatran tiger population as "P. t. sondaica".
Split into simpler sentences: In 2017, the Cat Classification Task Force of the Cat Specialist Group revised felid taxonomy. It now recognizes the extinct Balinese and Javan populations, besides the extant Sumatran population, as "P. t. sondaica".