Portainer Version Upgrade Path
We have tested and validated Portainer Version Upgrades from 1.24.0 to the latest (2.1.1). Although un-tested, it is possible an upgrade path that has not been validated might work. You are recommended to test any upgrade path, validated or non-validated on a non critical system before applying it to your active production systems.
You can find Requirements for different versions of Portainer here
Upgrade Instructions for different deployments below...