Plesk 9.x is registered in Plesk Manager of OBAS.
I'm going to upgrade it to version 11.x. As I know Plesk version 10/11 have new business logic. Will it work in OBAS?
There is periodic task "Update domains, convert clients to resellers and apply business logic upgrade wizard solution after Plesk node 9 upgrade to 10.x" that updates integration with Plesk 10/11 to new business logic.
If Plesk was upgraded to version 10/11 using Plesk Autoinstaller, its status is changed to "Upgrading" and the task is started automatically. Also the task may be started manually through:
Top > Service Director > Plesk Manager > Nodes > #NODE_ID > Reschedule Plesk upgrade
Here you may find more details:
--->8--- Upgrading - the status informs that recently Plesk upgrade took place at a node. In this case PBAS executes tasks to adjust Plesk subscriptions data. This status occurs automatically as soon as PBAS detects upgrade at a Plesk node. Applicable to Plesk nodes only. ---8<---