NET Framework 4.5.2 or later is required for installing ArcGIS Engine. Administrative privileges are required for installation.Review the ArcGIS Engine system requirements for more information.Review What's included for a list of components. ArcObjects Developer Kits 10.8.2 and ArcGIS Engine 10.8.2 includes many components.See Migrate from ArcMap to ArcGIS Pro for more information. There are no plans to release ArcGIS Desktop 10.9, and it is recommended that you migrate to ArcGIS Pro. ArcGIS 10.8.2 is the current release of ArcGIS Desktop and will enter Mature Support in March, 2024.