docs/data/reusables/copilot/install-copilot-vs-intro.md

With {% data variables.product.prodname_vs %} version 17.10 Preview 3 or later, you can install a single extension that combines {% data variables.product.prodname_copilot %} and {% data variables.product.prodname_copilot_chat %}. If you use {% data variables.product.prodname_vs %} 17.8 or 17.9, you must install the {% data variables.product.prodname_copilot %} and {% data variables.product.prodname_copilot_chat %} extensions separately. The {% data variables.product.prodname_copilot %} extension is a prerequisite for using {% data variables.product.prodname_copilot_chat %}. For more information about the {% data variables.product.prodname_vs %} 17.10 Preview 3 release, see the Visual Studio Release Notes in the Microsoft documentation.