5. Upgrading Existing Install

You will upgrade your database from a prior version by applying each database schema change, in order, and applying it only once. Only apply the schema changes in the db/ folder that are dated after your existing installation.

There may also be migration scripts that have to be run. In the db/ folder, look for php scripts and run them.

Warning

You have to apply database schema changes and to run migration scripts in the right order.