The complete set of features available on a SonarQube depends on the plugins that are installed - not only on the version of SQ itself. For this reason, any user might want to see the list of plugins - along with their version, that are installed on a SQ instance. For commercial plugins, a user should be able if they are activated or not - and until when they are activated.
Some ideas where this information could be available:
- add a link on the SonarQube version displayed in the footer, which will open a modal window with the list of plugin versions
- display this list somehow on the "Help" modal window