Upgrading Osticket from 1.6 to 1.10

Upgrading Osticket from 1.6 to 1.10

In my experience, we need to migrate to 1.7 first in order to move all attachments  from file system to database , if you go directly from 1.6 to 1.10 , attachment might be missing.

We need to run the following queries before to fix some issues with database:
ALTER TABLE supportedf_help_topic ADD INDEX(topic);

ALTER TABLE supportedf_department ADD INDEX(dept_name);

If you have duplicate topic you might need to clear the topic first

TRUNCATE supportedf_help_topic;