We tried to update our CORS configuration in AEM 18.104.22.168 according to this help article: Adobe Experience Manager Help | Understanding Cross-Origin Resource Sharing (CORS) with AEM .
But this does not seem to work (anymore). If we follow the guide and add it to your package and deploy it again. It does not recognize it as an instance of the CORS configuration factory component.
We have the same issue with adding a custom Logging to the LogFactory, as documented here: Monitoring and Maintaining Your AEM instance
Do you have the same issue? We haven't tested it yet with the latest AEM 6.4.x.
Thanks for support.