Before any upgrade, a full backup of your Opigno instance (database and files) should be done, so that you can revert to the previous version in case the upgrade doesn't go well. |
If you want to quickly check if your Opigno instance is up-to-date, you can simply click in the user menu on "About". You will see your version of Opigno as well as a green pictogram if it's up-to-date: