Upgrade the stack
It is strongly recommended to create a backup before starting the upgrade process. If you have important data, create and try to restore a backup to ensure that everything works properly.
There are two different ways to upgrade a Bitnami stack.
You can upgrade the application only without modifying any other stack components. To do this, refer to the application pages.
You can upgrade the application and all stack components, such as PHP, Ruby, MySQL and Apache. Follow the instructions below:
Download the latest native installer for the stack.
Stop existing stack services using the graphical manager.
Install the new stack to a different installation directory.
Run the Bitnami Console script as described in the Bitnami Console page.
Copy any uploaded files or configuration files. It may also be necessary to run migration scripts to update the database schema; however, this varies per application. Refer to the application pages for more information on application-specific upgrade steps.
Restart the servers using the graphical manager.
You should now be able to access your new stack.