XACML 2.0 Policy/PolicySet version number

[Kamalendu Biswas <Kamalendu.Biswas@oracle.com>]

Hi,
What is the purpose of the Version number element in the 
Policy/PolicySet element?
Is this the policy object revision number in the policy repository, 
which is similar to file revision
number in a source code control repository?
Regards,
Kamalendu
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Kamalendu Biswas
Oracle Fusion Middleware
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