ACID index extended to 7-bit counter feature will be available on in a shared environment with r15

Document ID : KB000015722
Last Modified Date : 14/02/2018
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Question:

Using EXPCOUNTER option to create a new security file with ACID index extended to 7-bit counter.
Can this newly created security file of CA Top Secret v16 format be shared between CA Top Secret v16 and r15?

Answer:

CA Top Secret r15 system needs to have RO55678 and the following PE fixes:
RO58585, RO59061, RO59783, RO60626, RO61247, RO62473, RO63350, RO63845, RO64729, RO65451, RO65717, RO63187, RO73379, and RO75732.

So all of these maintenance have been applied, you can use a new security file with ACID index extended to 7-bit counter on CA Top Secret r15 system.

Additional Information:

Other than the above, the current CA Top Secret v16 features that would alter the security file format and, therefore, disallow sharing are:
https://support.ca.com/us/knowledge-base-articles.TEC1731738.html