ArcObjects has been in productive use for over 20 years now, as a robust developer SDK for building powerful GIS apps and extending the platform. Complementing that is the .NET SDK for ArcGIS Pro, and a relatively new .NET and Java SDKs for extending ArcGIS Enterprise. -------------------------------------------------------------------------------------------------------------------------- Follow us on Social Media! Twitter: https://twitter.com/Esri Facebook: https://facebook.com/EsriGIS LinkedIn: https://www.linkedin.com/company/esri Instagram: https://www.instagram.com/esrigram The Science of Where: http://www.esri.com