Upgrading from iPhoto or Aperture to Apple's Photos? Read this

New Photos app replaces company's amateur and professional photo apps, but is it any good - and is it safe to upgrade?

Almost every new gadget has a camera these days, which means almost every moment can be captured for posterity. But the sheer number of photos we collect as we go about our lives is becoming a nightmare of organisation.

To start with, how do you store photos? In virtual albums? One massive mess sorted by date? By people, or place? Or perhaps by camera?