original_query: What was the purpose of Centaur's modernization in 1956?
query: What was the purpose of HMS Centaur's modernization in 1956?
answer: The modernization aimed to give HMS Centaur the minimum capability to operate heavier, second-generation jet fighters like the Supermarine Scimitar and De Havilland Sea Vixen, addressing obsolescence of the existing carrier fleet.