If you upgrade an existing Adobe LiveCycle instance, also upgrade the stand-alone CQ instance to the supported version, to keep your existing pages with Forms Portal component up and running.
The old components used in existing pages are marked as deprecated and only the new components are available in side kick with the same name. To use old components, follow these steps.
The Document Services (Deprecated) and Document Services Predicates (Deprecated) components' categories are now available in the list of available components in the AEM Sidekick. Deprecated components and the supported components do not work together on the same page.
To use Adaptive Forms, use the new Forms Portal components. The deprecated components do not support Adaptive Forms.