Most default apps are listed with newer versions than the ones currently in play on your Android device, with the biggest jumps going to the email (4.1 to 6.0), authenticator and clock applications...
Source: http://www.phonearena.com/news/More-Android-4.4-KitKat-and-Google-Nexus-5-info-seeps-through-the-leaked-log_id47893
Source: http://www.phonearena.com/news/More-Android-4.4-KitKat-and-Google-Nexus-5-info-seeps-through-the-leaked-log_id47893