We have documented 21.1. Multiple Jakarta Server Faces implementation of Jakarta Server Faces for EAP 7.4 https://access.redhat.com/documentation/en-us/red_hat_jboss_enterprise_application_platform/7.4/html-single/configuration_guide/index#multi_jakarta_server_faces_implementation_overview

We do not have corresponding documentation migrated to EAP8 Beta https://access.redhat.com/documentation/en-us/red_hat_jboss_enterprise_application_platform/8-beta

Customer can't use EAP7 documentation for EAP8 because versions and templates are different.

We would need to document that for EAP8.