Running Adobe Illustrator on macOS 10.15 Catalina requires a , as this OS update famously dropped all support for 32-bit applications. While modern Creative Cloud versions are compatible, legacy versions like CS6 will not launch normally because they contain 32-bit components. Compatible Illustrator Versions
Adobe and Apple no longer provide active security updates for macOS Catalina. If your hardware allows it, upgrading your Mac is recommended for the best security and access to the latest Illustrator features. adobe illustrator macos catalina
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