The change was already done for text editable, since the button fragment have to allow text only, and it was forgotten for the link editable.

The system-wide Mail Settings for DXP were migrated to use the standard system configuration framework.

The system options in Server Administration > Mail were moved to System Settings > Email > Virtual Instance Scope > Mail Settings

The existing settings from previous releases will be automatically migrated during the database upgrade process.

The following portal properties were removed since they are now defined by configuration properties:
LIST OF PROPERTIES

Following standard configuration patterns, Instance Settings > Email > Mail Settings will have default values inherited from the System Settings. The administrator for Portal Instances can now view the default values, override, or reset to default.

Please refer to Configuring Mail - Liferay Official Documentation for additional details.

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.