Hello everyone, As you already know, we are committed to replacing problematic language in our code, documentation, and web properties. We are beginning with these four terms: master, slave, blacklist, and whitelist which affect considerably to WildFly running on Domain Mode. If you are only using Standalone for development/testing, you can safely ignore this message. This message is just to let you know that the work replacing the problematic language is in progress, and we expect to integrate all the possible breaking changes that affect the deliverable project in the next release of WildFly Core. Depending on how you are launching Domain Mode, you could be affected. In addition, I expect to get some instability on the Web Console running on domain mode when you are using the "runtime" tab due to https://issues.redhat.com/browse/HAL-1780. Some of the more relevant changes are: - The host-master.xml and host-slave.xml files are going to be replaced with host-primary.xml and host-secondary.xml, of course, you can continue using the configuration file name you want, it's just the old ones will be no longer shipped with the server. - The system properties used to configure the domain (e.g jboss.domain.master.protocol:remote+http, jboss.domain.master.address, jboss.domain.master.port) will be also adapted accordingly. - The attribute "master" under /host=* resource will be renamed - The default name of the primary host controller will be "primary" instead of "master" - Management model descriptions and log messages Also, notice we have already changed the name of the following domain mode launch script (domain.sh) arguments: --master-address and --master-port, they are now --primary-address and --primary-port The whole work will be done on some releases. After the above ones, we will focus on non deliverables e.g replacements on the testsuite, internal code and configurations that are not directly exposed to the final user. Feel free to ask or comment if you have any related questions. Regards, Yeray