APO Version @ ECC6.0

Hello,

we are planning to Upgrade our core system from 4.7 to ECC6.0.

We are currently using a separate APO System with Version SCM4.1.

Is it possible to stay with this APO version or do we have to upgrade it as well?

If we don't have to upgrade: What PlugIns do we need wor APO and the core system?

Where can I find further information?

Thx in advance,

Matthias