According the technical documentation on show security policies information , this command was introduced in Junos OS Release 18.4R1. However, it is actually available from 15.1X49, but was hidden.
Example output for command, 'show security policies information' in release 15.1X49 and was made hidden:
'show security policies information'
user@router> show version Hostname: HKT-vSRX-X49 Model: vsrx Junos: 15.1X49-D150.2 JUNOS Software Release [15.1X49-D150.2] user@router> show security policies in? No valid completions user@router> show security policies information Policy utilization counters: Number of policies : 4 / 10240 Number of global policies : 0 Number of policies with scheduler : 0 Number of policies with statistics enabled: 0 / 1024 Number of policy contexts : 2 / 2048 Number of Policies per context : 3 / 10240 Number of Source addresses per policy : 1 / 1024 Number of Destination addresses per policy : 1 / 1024 Number of Applications per policy : 4 / 128 / 4096 Number of Source identities per policy : 0 / 128 Dynamic policy counters: Messages received : 0 Messages rejected : 0 Add messages received : 0 Delete messages received : 0 Clear messages received : 0 Invalid messages received : 0 Add messages sent to PFE : 0 Delete messages sent to PFE : 0 Clear messages sent to PFE : 0 Policy added successfully : 0 Policy deleted successfully : 0 Policy cleared successfully : 0 Policy add failures : 0 Policy delete failures : 0 Policy clear failures : 0 SSAM send attempted : 0 SSAM send succeeded : 0 SSAM send failed : 0 Policy failures - bad configuration : 0 Policy failures - bad scope policy : 0
Example output for command, 'show security policies information' in release 19.3 and unified policy status information is added from release 18.2:
user@router> show version Hostname: srx300-HK Model: srx300 Junos: 19.3R1.8 JUNOS Software Release [19.3R1.8] user@router> show security policies in? Possible completions: information Show the policy information interface Name of adaptive services interface user@router> show security policies information Policy utilization counters: Number of policies : 3 / 1024 Number of global policies : 0 Number of policies with scheduler : 0 Number of policies with statistics enabled: 0 / 256 Number of unified policies : 1 Number of policy contexts : 1 / 256 Number of Policies per context : 3 / 1024 Number of Source addresses per policy : 1 / 2048 Number of Destination addresses per policy : 1 / 2048 Number of Applications per policy : 4 / 128 Number of Dynamic applications per policy : 5 / 4096 Number of URL Category per policy : 0 / 1024 Number of Source identities per policy : 0 / 128 Dynamic policy counters: Messages received : 0 Messages rejected : 0 Add messages received : 0 Delete messages received : 0 Clear messages received : 0 Invalid messages received : 0 Add messages sent to PFE : 0 Delete messages sent to PFE : 0 Clear messages sent to PFE : 0 Policy added successfully : 0 Policy deleted successfully : 0 Policy cleared successfully : 0 Policy add failures : 0 Policy delete failures : 0 Policy clear failures : 0 SSAM send attempted : 0 SSAM send succeeded : 0 SSAM send failed : 0 Policy failures - bad configuration : 0 Policy failures - bad scope policy : 0 Unified policy status: Dependent-dynamic-application-lookup: disable Unified-policy-implicit-match: enable