What is the @Filter and auto-enabled filters feature in Hibernate 7?

@FilterDef(
    name="activeFilter",
    parameters=@ParamDef(name="isActive", type=Boolean.class)
)
@Filter(name="activeFilter", condition="is_active = :isActive")
@Entity
public class Product {
    @Id private Long id;
    private String name;
    private boolean isActive;
}

// Enable for this session:
session.enableFilter("activeFilter").setParameter("isActive", true);
// All Product queries now silently include: AND is_active = true
List<Product> active = session.createQuery("FROM Product", Product.class).getResultList();
session.disableFilter("activeFilter");

// HIBERNATE 7: auto-enabled filter for multi-tenancy
@FilterDef(
    name="tenantFilter",
    parameters=@ParamDef(name="tenantId", type=Long.class),
    autoEnabled=true  // no session.enableFilter() needed!
)
@Filter(name="tenantFilter", condition="tenant_id = :tenantId")
@Entity public class Order { ... }
// FilterDefContributor SPI resolves tenantId from ThreadLocal automatically