The upgrade of the add-on will then happen as part of the Moodle upgrade process.If an out-of-date add-on causes your upgrade to fail, you can usually delete the add-on code rather than uninstalling it from within Moodle so that the data associated with it is not deleted.Spend some time re-reading the installation documentation and documentation for the new version.Check the system requirements for the target version you want to upgrade-to in Settings Environment.
There are three areas that should be backed up before any upgrade: See Site backup for more specific information.
Sometimes there are specific considerations when upgrading to a particular version.
See the Releases page for more information on this.
Moodle 3.2 has raised the minimum required PHP version to 5.6.5.
Note: You can only upgrade to Moodle 3.2 from Moodle 2.7 or later. Please note that if you use My SQL you must upgrade the engine to Inno DB since it has become a requirement in Moodle 3.1. Note 1: The Assignment activity can now convert various office document formats to PDF to work with PDF annotations.