Add a requirement for this feature to be supported.

The supported version for this feature is 1.6.4.2 or later, so please add that. Customers who do not meet the version requirement may configure it.

Author: shmiyaza-MSKK

articles/active-directory/hybrid/how-to-connect-selective-password-hash-synchronization.md

@@ -35,6 +35,9 @@ To reduce the configuration administrative effort, you should first consider the
 > [!IMPORTANT]
 > Configuring selective password hash synchronization directly influences password writeback. Password changes or password resets that are initiated in Azure Active Directory write back to on-premises Active Directory only if the user is in scope for password hash synchronization.
 
+> [!IMPORTANT]
+> Selective password hash synchronization is supported in 1.6.2.4 or later. If you are using a version lower than that, please upgrade to the latest version.
+
 ### The adminDescription attribute
 
 Both scenarios rely on setting the adminDescription attribute of users to a specific value.  This allows the rules to be applied and is what makes selective PHS work.