The Colorado beer industry really knows how to end a decade. This year, we saw the state’s oldest craft brewery downsize, its biggest craft brewery sold off and its best-known beer brand move out of town. And all this while Colorado brewers were winning big at the Great American Beer Festival, and the state’s drinkers — for the first time since Prohibition — started buying full-strength beer from more than 1,000 grocery stores. Just when we thought the beer boom of the early 2000s was leveling, Denver welcomed its first-ever hard seltzer festival.