What to do in case of an Adobe Illustrator upgrade?

Re-install the Datylon plugin

In case you install an Adobe Illustrator CC major upgrade, you should re-install the Datylon plugin after that. Preferably the latest version which can always be downloaded here. No need to uninstall the plugin first.

An Adobe upgrade is considered as a major upgrade when de first digit behind the point is increased. e.g. from version 24.1.1 to 24.2.0 is a major upgrade.

More info on installing Datylon in the following article