The Aeon client will display a warning in the status bar if the version of Aeon being used is no longer supported or will soon be no longer supported. Clicking on the warning icon will display a message with more details.
When your version of Aeon will soon no longer be supported, a warning symbol will display in the status bar.
Clicking on this warning will bring up a dialog box that will let you know when you need to update your version of Aeon by.