I am on Mac OS Catalina 10.15. Guitar RIg 6.4 update does not show on Native Access. I have manually downloaded the Guitar Rig 6.4 installer but it says it requires Mac OS 11.
I believe that according to https://support.native-instruments.com/hc/en-us/articles/360014900358-Compatibility-of-Native-Instruments-Products-on-macOS it should work on Mac OS Catalina 10.15.
How can I install Guitar Rig 6.4 on Mac OS Catalina 10.15?