Valid on z/OS and z/VM.
Use the PWHIST control option to specify the number of previous passwords maintained as part of an ACID's password history. Password history prevents users from reusing old passwords when their current password expires. CA Top Secret always rejects new passwords that are identical to the previous password.
This control option has the following format:
PWHIST(nn)
Specifies the number of passwords (past and current) maintained for each ACID. Specify 1 to record the current password only.
Range: 1 to 64
Default: 3
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