If you are using the Global Cardholder Synchronizer (GCS) role in your system, there are important limitations that you must be aware of when you upgrade your system to 18.104.22.168.
The Global Cardholder Management (GCM) module was rewritten in Security Center 5.7 GA to improve efficiency and scalability. Because of this enhancement, the Security Center 5.7 Directory is no longer backward compatible with earlier versions of Global Cardholder Synchronizer (GCS) roles.
The following table shows the compatibility between sharing hosts and sharing guests running different versions of Security Center:
|Sharing host version||Sharing guest version||Compatible|
|5.9||5.7 to 5.9||Yes|
|5.8||5.7 to 5.8||Yes|
|5.8||5.9 and later||No|
|5.8||5.8 and later||No|
|5.7||5.6 and earlier||No|
For more information, see Global cardholder management.