None
The Development Guide was included in the 7.4 documentation and needs to be added to EAP 8.1 and copied to 8.0.
[1] https://docs.redhat.com/en/documentation/red_hat_jboss_enterprise_application_platform/8.0#Development
[2] https://docs.redhat.com/en/documentation/red_hat_jboss_enterprise_application_platform/7.4#Development
Merge request - EAPDOC-2799: Adding the Development Guide to JBoss EAP 8.1 docs and modularizing/refactoring the content.