In Spring of 2017, Hubway introduced a new model of bikes to the fleet. The new gears shift in the opposite direction as the old ones, twist away from you for a higher gear (for flat streets), twist towards you for a lower gear.
(Please note: You'll notice the newer bikes have a different fender as well as different lights and handle bars).
Our mechanics offer up one more pro-tip. You'll need to pause your pedal in order to shift, just for a second while you're turning the shifter. You'll shift more smoothly and you'll also help extend the life expectancy of the parts on the bike, ensuring that Hubway bikes spend more time on the street and less time in the repair shop, improving the experience for every Hubway rider.