Plugin versions are now specified in the parent pom. This also has an advantage that that plugin versions will be checked even if plugins are not used (or used only in profiles).
Plugins are updated to the latest versions, except maven-bundle-plugin (with the latest version the bundles get some osgi dependency problems - this needs to be checked)
Set the minimal maven version for more reproducible builds and better reporting for mvn versions:display-plugin-updates
mvn versions:display-plugin-updates