If you are upgrading from a legacy version of Litium, please familiarize yourself with changes between different versions of Litium.
API changes from version to version of Litium
What's new from version to version of Litium
Upgrade documentation for versions pre-Litium 8
For an overview of the upgrade procedure, please see how to upgrade to Litium 8.
For more information information about changes in the domain model between Litium 5 and Litium 7, please see this table in the Litium 7 upgrade documentation. Litium 8 comes with a new order management API, new campaign management API, new Litium Connect Payments API, and new Litium Connect Shipment API.
More information about changes to consider when upgrading to Litium 8 can be found in the following pages of this chapter.