Despite announcing earlier this year that it’s officially out of the router business, Apple has pushed out one last big firmware update for its second-generation AirPort Express, adding AirPlay 2 support to the 2012 Wi-Fi router. The update was discovered by 9to5Mac, which found evidenced earlier this year in the iOS 11.4 and iOS 12 betas that suggested AirPlay 2 could be coming to the device despite the fact that Apple no longer even sells…