Hello,
We are currently using OJS 2.0 for our OA journals and planning to move to 3.0. However, I’ve found that:
"OJS 2.x themes and layout modifications are not easily transferable to OJS 3.x, but OJS 3.x does include some great new tools to make attractive design easier and more maintainable. "
(https://pkp.sfu.ca/2018/07/11/5-steps-to-ojs-3-upgrade-planning-for-service-providers/)
I mean we would need to re-create themes and layouts for existing journals, when we move to 3.0 from 2.0.
So, one we migrate to the 3.0 then our current OJS platforms more sustainable for future migrations?