The Object Inheritance feature has been updated to support more flexible scenarios, which introduces changes to the previous behavior:

• Child definitions can now be associated with multiple parent definitions.
  Previously, a child could only inherit from a single parent.

• Child entries can now exist without a parent (standalone entries).
  Before this change, every child entry was required to belong to a parent.

• The relationship field is no longer mandatory at the object-definition level.
  Previously, the relationship field was always required when inheritance was enabled.
  Now, it becomes mandatory only when the entry is created in the context of a parent.

• Permission and configuration inheritance now depends on whether the child entry has a parent.
  Standalone entries no longer inherit permissions or configuration from a root object.

At the LPD-46627: Enhancing SAML to be able to Sync User GroupsClosed story we modified the SAML userGroups membership management according to the portal’s standard way. With that we introduced a namespace for the attribute which seems causing inconveniences to customers, described in the LPD-66611: userGroups Attribute Name Changed to membership:userGroups, Breaking Liferay IdP IntegrationsClosed bug ticket.