JBoss Enterprise Application Platform Component Details - Red Hat Customer Portal

From the component details above EAP 6.4 includes the JSF2 module based on 2.1.28.Final version.

Checking my installation "jboss-eap-6.4/modules/system/layers/base/javax/faces/api/main" it is using "jboss-jsf-api_2.1_spec-2.1.28.Final-redhat-1.jar"

What do you mean by "not supporting" ?