A new POM parent cms-blueprint-parent has been introduced and is used as (transitive) parent for every Blueprint module. It contains basic plugin management, especially for the install plugin and deploy plugin for which it is important that all modules use the same versions. If you need a custom parent in your Blueprint, you can simply search and replace our parent element.

You could use the cms-blueprint-parent as the parent of your custom parent or integrate the plugin management as necessary.