Versions 24.x through 27.x are compatible with Catalina. Note that Adobe typically only supports the current version and one version back, so older installers may be hard to find through the Creative Cloud Desktop app .
: Draw and edit vector paths directly on the iPad screen using the Apple Pencil adobe illustrator macos catalina
However, there is a caveat. The initial release of Illustrator CC 2019 (v23.0) had some compatibility issues. If you are using the Creative Cloud app, ensure you have updated to at least version 23.0.1. Versions 24
Adobe began transitioning its Creative Cloud suite to 64-bit architecture years prior to Catalina’s release. However, the impact on Illustrator users manifested in two distinct ways: adobe illustrator macos catalina