iPhoto
I currently have a 2012 iMac that when I first purchased it I began using iPhotos as my editing program. When Photos came out I began using that but I think I remember reading that the data was merged between the two but i should still save iPhoto's. I do upgrade to the new OS when it comes out but I do not do a clean install. Last week I was cleaning up my computer and noticed that the iPhoto's library is huge, but smaller than my Photos library, 150GB vs. 230 GB. Do i need to keep the iPhotos at this point or can i delete it and just use Photos?
iMac, macOS Mojave (10.14.1)