Why must I update my Photos library?
My 16in MacBookPro is running Sonoma 14.7, just updated this morning from 14.4. When I was running 14.4 and wanted to change wallpaper on a desktop to a photo from Photos, I was told to update my photo library. I did not understand and could see no way to do this. After the OS update, I no longer get that warning, so what has happened and what was the point of the warning? I know this looks like a non-problem but I'd like to understand what has happened and why.
MacBook Pro 16″, macOS 14.7