Howdy, Recently we had several queries about testing Maven Plugins, but in general I think we should make plugin developers aware of incoming changes. Hence, I assembled the following wiki page, that may become Maven Site page as well, and (irrelevant is it becoming site page or not) probably should be sent out to users ML as well, to get a broader audience.
https://cwiki.apache.org/confluence/display/MAVEN/Notes+For+Maven+Plugin+Developers Consider the page as DRAFT, and let me know what you think and what you think is missing from it. Recently I started locally using 3.9.0-SNAPSHOT and found several plugins we use affected, for example: https://github.com/gaul/modernizer-maven-plugin/issues/152 https://github.com/revelc/impsort-maven-plugin/issues/64 Would be good if we ensure that our own builds will work with latest Maven, but also to announce to plugin developers out there about upcoming changes. Comments are welcome. Goal is to make the content of that wiki page "complete" (that's what we need to agree about), and then send it out to user ML. T PS: please let's discuss here on ML first round, so we can edit the wiki page as discussed.