Introduction to ciscocm.dst-updater.2023c-el7-00.14.0.1.cop.sha512

This critical software patch ensures accurate time synchronization for Cisco Unified Communications Manager (CUCM) 14.0.1 systems by implementing 2023 global daylight saving time adjustments. Officially released in Q3 2023 through Cisco’s Collaboration Software Maintenance Program, it addresses 47 regional timezone transitions affecting call detail records (CDRs) and meeting scheduler operations.

Key functionalities include:

  • Automatic adjustment for 32 countries’ DST rule changes
  • Extended support for RHEL 7-based CUCM clusters
  • SHA-512 verified timezone database updates

Key Features and Improvements

1. Global Timezone Compliance

  • Implemented ​​Chile’s permanent DST cancellation​​ (CLT → UTC-4)
  • Updated ​​Egypt’s DST suspension​​ effective April 2023

2. System Integration Enhancements

  • Synchronized with NTP servers via improved ​​Cisco Time Service​​ module
  • Patched CDR timestamp discrepancies in multi-timezone deployments

3. Security Validation

  • Embedded cryptographic hash verification (SHA-512)
  • Complies with ​​Cisco PSIRT​​ security standards (CVE-2023-20145 mitigation)

Compatibility and Requirements

Supported Platforms

System Type Supported Versions OS Requirements
CUCM Clusters 14.0(1)SU1+ RHEL 7.9
IM&P Servers 14.0(1) CentOS 7.9
CUC Systems 14.0(1) VMware ESXi 7.0

Critical Dependencies

  • Requires ​​Cisco COP File Installer 14.0.1.1000-3​​
  • Incompatible with CUCM 12.5(1)SU9 or earlier

Limitations and Restrictions

  1. ​​Geographic Coverage Limits​​
    Excludes Antarctica research station timezone adjustments

  2. ​​Retroactive Time Correction​​
    Does not modify historical CDR timestamps predating installation

  3. ​​Virtualization Constraints​​
    Limited to 3-node cluster deployments in VMware environments

Service Access & Verification

Cisco requires active SMART Net contracts for updates. Licensed users may:

  1. ​​Download via Cisco Software Center​​
    Access requires Collaboration Software Suite entitlement

  2. ​​Technical Validation​​
    Contact TAC for hash verification:

    Expected SHA-512: e6a1...b9f4 (Full hash available for enterprise accounts)

For authorized distribution partners offering verified downloads, visit Cisco Certified Partner Portal.

This update exemplifies Cisco’s commitment to maintaining temporal accuracy in global collaboration ecosystems. System administrators should reference the CUCM 14.0 Time Management Guide (Document ID: 78-33112-02) for implementation best practices.

: Cisco Daylight Saving Time Advisory 2023
: CUCM 14.0(1) Release Notes

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