HMD has now published the Camera application which comes pre-loaded with the Nokia Android Smartphones to the Play Store. This means, Nokia users would get direct update for the Camera app from the Play store.
Current version of the Nokia Camera application is v6.0080.07. Of course, this application is only compatible with Nokia Android Smartphones including the Nokia 3, Nokia 5, and Nokia 6.
If you haven't updated your Nokia phone Camera app, you can update it from the below Play Store link.
Play Store: Nokia Camera