since my imac has updated to big sur, iPhoto no longer works, How do I get this back working?
Iphoto no longer works after software upate to Big Sur?"
iMac 27″ 5K, macOS 11.2
"iPhoto" was discontinued and replaced by the "Photos" app 6 years ago.
If you hold down the option key while opening the Photos app you can then select your iPhoto library and Photos will open and convert it.