Apple Aperture will not work in macOS after Mojave

The albums, the labels and the images themselves will make the difference, but they will not always have a one to one equivalent. Color tags can appear as keywords or tags, for example. The non-destructive editing of Aperture will also not be reported correctly: the Photos application will keep the changes, but you can not edit them before returning to the original image. You will need to remember these changes if you search through your existing library, and you may need to rethink your workflow in future shots.