iphoto or photos on macbook pro?

[mrsmacca3]

I have a Macbook Pro macOS High Sierra. I seem to have photos in iphotos and photos, should I be only using one library? I see conflicting information and want to make sure I set up icloud correctly as I've lost some christmas day videos of my son

 

[haralds]

iPhotos is deprecated. I would move everything to Photos, unless there is another app relying on the iPhotos folder structure. Aperture is an older app that comes to mind.

 

[mikzn]

iPhoto still works on HS so you can move the app onto the new OS and keep them in iPhoto if you want - probably good to keep a back up of the iPhoto library - once you open in Photos the database is upgraded and you will not be able to go back to iPhoto.

I have multiple libraries of iPhoto and also multiple Photos libraries - so it can get confusing and you have to be careful when launching them.

Also there are different versions of Photos (Photos 2 - Sierra / Photos 3 HS / Photos 4 Mojave )

hope that helps