Is it possible to update ojs3 with ojs2 data? .i.e database

We have a dev environment with the latest version of ojs. However we need to update our latest dev environment with our live site’s content which sits on ojs2. Is there a way of doing this without breaking the site?



In general, no - the database schemas are very different. Your best bet is to perform the proper upgrade procedure on your OJS2 site, perhaps by making a copy of the whole site so you don’t break your live site while you do this, and then verify that the upgraded database works in your dev environment, after you’ve also made a backup of that site as well.