Query for NZ ISM versions

What are the different between NZ_ISM_Restricted_v3_5 and nz_ism.? 

azure-policy/built-in-policies/policySetDefinitions/Regulatory Compliance/NZ_ISM_Restricted_v3_5.json at master · Azure/azure-policy · GitHub

azure-policy/built-in-policies/policySetDefinitions/Regulatory Compliance/nz_ism.json at master · Azure/azure-policy · GitHub

 

Also, I see the latest version of NZ ISM is 3.6. Will we have the latest update for NZ ISM?