Kontakt 5.6.8 was a pivotal version because it changed how libraries are added.
: Click Install next to Kontakt 5. The application will be placed in your Applications/Native Instruments/Kontakt folder. native-instruments-kontakt-5-6-8-dmg-for-mac-os
: Requires an Intel-based Mac. Native support for Apple Silicon (M1/M2/M3) was introduced in later versions (Kontakt 6.7+). Installation Guide Kontakt 5