The Grails Framework 2.3.8

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(Quick Reference) # upgrade ## Purpose The `upgrade` command upgrades a Grails application to the currently installed version of Grails if possible. ## Examples
    grails upgrade
    grails upgrade --update-data-source
    grails upgrade --force
## Description Usage:
    grails upgrade
Arguments: `update-data-source` - upgrades DataSource.groovy to use H2 instead of HSQLDB. `force` - suppress warning messages Fired Events: `StatusUpdate` - During the upgrade process `StatusFinal` - After the upgrade completes | Quick Reference (hide)