My journal is currently running under version 3.1.2.4 and I have started with the transition to version 3.3.0.8.
The imports have been done correctly and when checking the articles on the landing page, I have noticed that the meta tags of the keywords (<meta name=“DC.Subject”) are only showing the last one (for version 3.3.0.8.) while under version 3.1.2.4 all the keywords are shown.