for a time in the 1970s, coca-cola introduced six variety flavors of tab (all of which were also sugar-free): root beer, lemon-lime, ginger ale, black cherry, strawberry, and orange. a caffeine-free version of the original tab flavor was introduced in 1983, alongside caffeine-free versions of coca-cola and diet coke. tab clear, a caramel color-free version of tab, was released in the united states in 1992, and subsequently in the united kingdom and japan. tab clear was discontinued in 1994.