Note the “(SQL Server 2014)” beside the project name in Solution Explorer.
If I want to deploy this project to an SSIS Catalog on a SQL Server 2016 instance, I should update the project to SSIS 2016. How do I do this? In Solution Explorer, right-click the project name and click Properties
There are some nice screen shots to walk you through this. I’m happy that SSIS is moving in a multi-version direction. That makes it easier for me as a developer to upgrade my tools without needing three versions of Visual Studio (or SSDT).