Philadelphia has a habit of taking its time letting go of summer, but the calendar doesn't care, and neither do the beer menus. Pumpkin beer season is well underway, and after a few years of the style quietly falling out of craft-beer fashion, it's back in a real way this fall. Distributors are stocking more varieties than they have in years, and the city's best beer bars are already rotating them onto their taps. Here's where to get your first one of the season.