I am administrating a SQL Server 2016 instances, and I am plan to upgrade the instances from 2016 to 2019 soon.
I also have a couple of SQL Server agent jobs that running on this instance, and those agent jobs involve with SSIS steps (package source from file system). After the SQL Server instance is upgraded to 2019, do I need to upgrade the SSIS packages as well? Would upgrade the packages' target server version to 2019 is enough to ensure the packages running smoothly after the sever is upgraded?