Upgrade paths
Every release typically offers direct upgrade paths from at least the previous one or two releases. You can upgrade directly to 2019 R2 from:
2019 R1 (19.1.x.x, including 19.1.0.0, 19.1.1.0, 19.1.1.1, 19.1.1.2, 19.1.2.0) – Requires updateDB<vers>.cmd.
To upgrade from a release that is earlier than 2019R1, you must perform multiple upgrades, one for each major release. For help with upgrading from a release that is earlier than 2019 R1, please contact aPriori Customer Support or Professional Services.