Installing Adobe Illustrator CC 2020 on older Mac systems is primarily limited by Adobe's current support policies and the technical shift to 64-bit-only operating systems like macOS Catalina.
Before installing, ensure your Mac meets the minimum requirements for the 2020 version (v24.x): Operating System:
: A hidden list appeared, revealing a timeline of Illustrator's history. Install 2020 install adobe illustrator cc 2020 on mac pre exclusive
This is a common macOS gatekeeper error. Right-click the installer and select "Open," or move the installer to the desktop before running it.
Note: This feature set interprets "Pre Exclusive" as the architectural transition period between Intel and Apple Silicon, focusing on stability for older hardware while welcoming the new. Installing Adobe Illustrator CC 2020 on older Mac
Installing Adobe Illustrator CC 2020 on a Mac today is a bit of a "long story" because Adobe generally only supports the current and one previous version of their apps
sudo nano /etc/hosts
Navigate to Contents > MacOS and double-click the Unix executable named Install . This bypasses the "The installer could not be verified" error.