At the end of the war, the Essex class were being phased out for the even bigger and heavier Midway class carriers that just missed the end of WWII, but went on to handle modern jets during Korea, Viet Nam and up through Desert Storm.
Essex class were updated after the war (angled flight decks). Midway class missed the war but only three were built. The updated Essex class served until the 1970s. The Forestall class were built in the 50s and 60s and were the backbone of the carrier fleet till the advent of Nimitz class CVNs.