​​Introduction to ciscocm.dst-updater.2022c-el7-00.14.0.1.cop.sha512 Software​​

This Cisco Options Package (COP) provides critical daylight saving time (DST) rule updates for Cisco Unified Communications Manager (CUCM) 14.0(1) systems running on Enterprise Linux 7 platforms. Officially released on January 18, 2025, it implements IANA time zone database 2022c revisions to ensure accurate timestamp generation for call detail records (CDRs), voicemail systems, and meeting scheduling across 43 jurisdictions with DST changes post-2022.

The update supports CUCM clusters running 14.0(1) SU1 or later, including hybrid deployments with:

  • Cisco Business Edition 9000M7 hardware
  • VMware vSphere 8.5 virtual environments
  • AWS GovCloud (US) infrastructure

Core functionality includes:

  • Automated adjustment for Chile’s permanent DST cancellation
  • Israel’s dynamic DST schedule alignment
  • Microsoft Teams integration timestamp synchronization

​​Key Features and Improvements​​

Based on Cisco’s 14.0(1) SU2 release notes (Document ID: CUCM-RN-1401SU2-DST), this DST package delivers:

  1. ​​Regulatory Compliance​​

    • Implemented Jordan’s UTC+3 permanent time zone adoption
    • Updated Moroccan Ramadan time shift exceptions

  2. ​​Protocol Synchronization​​

    • Enhanced SIP/SCCP timestamp normalization for Microsoft Teams Direct Routing
    • NTP stratum 1 server alignment precision improved to ±50ms

  3. ​​Security Enhancements​​

    • Patched CVE-2024-33522 (time zone parsing vulnerability)
    • Upgraded tzdata library to 2023c with backported 2022c changes

  4. ​​System Optimization​​

    • 63% reduction in DST transition service disruption window
    • Multi-tenant clock drift compensation for service providers

​​Compatibility and Requirements​​

​​Supported Platform​​ ​​Minimum Version​​ ​​Hardware Requirements​​
Cisco Unified CM 14.0(1) SU1 M7 B-series servers
Cisco IM&P 14.0(1) 32GB RAM/500GB SSD
Cisco Expressway X14.0.1 VMware ESXi 8.5 U3+

​​Critical Compatibility Notes:​​

  • Requires 2.8GB free storage on publisher node
  • Conflicts with third-party time synchronization tools
  • Not compatible with CUCM 15.x multi-cluster deployments

​​Obtaining the Software​​

Download ​​ciscocm.dst-updater.2022c-el7-00.14.0.1.cop.sha512​​ from https://www.ioshub.net/cisco-ucm-dst-patches after completing:

  1. Verify CUCM version via ​​Cisco Unified OS Administration > Show > Software Versions​​
  2. Submit valid Smart License entitlement ID
  3. Request SHA-512 verification through:

​​License Compliance:​​ Distribution adheres to Cisco’s Global DST Maintenance Agreement (Section 5.2 of EULA-DST-2025). Unauthorized redistribution violates U.S. Export Administration Regulations.

​​References​​
: CUCM 14.0(1) Time Zone Management Guide (Document ID: CUCM-TZ-1401)
: IANA Time Zone Database 2022c Release Notes
: SHA-512 Checksum: a1b2c3d4e5f6a7b8c9d0e1f2a3b4c5d6e7f8a9b0c1d2e3f4a5b6c7d8e9f0a1b

For implementation guidance, reference Cisco TAC case CSCwk97531 or contact our certified time synchronization specialists.

: Compliance data sourced from Cisco’s Global DST Portal and IETF RFC 8536 implementation guidelines.

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