On a brand new Nexus 5 the pre-installed Google apps (Hangouts, Google chrome, Google Play Services etc.) aren't showing up under the "My Apps" section of the Google play store, and therefore are not being updated. Once an app like Hangouts is updated manually it does show up.
Obviously the fix for this is relatively simple but I'm still curious what the issue is since I don't remember this happening on other Android phones i have used in the past(It seems very strange that even Google Play Services would not be auto-updated). Any help would be greatly appreciated.