System Setup and Software Installation Guide for Cisco NCS 1004

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System Setup and Software Installation Guide for Cisco NCS 1004

Software upgrade and downgrade matrix

Updated: July 17, 2026

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This section lists the supported upgrade and downgrade paths for NCS 1004 across releases from Release 7.0.0 through Release 26.1.1, for use when planning a software upgrade or downgrade.

Use this table to determine the release versions of NCS 1004 that support direct upgrade or downgrade. Cross-reference the source and target release versions before planning a software upgrade or downgrade.

Table 1. NCS 1004 software upgrade and downgrade matrix

Upgrade Path

Downgrade Path

Source Release

Destination Release

Source Release

Destination Release

  • R7.3.2

  • R7.5.1

  • R7.5.2

  • R7.7.1

  • R7.8.1

  • R7.9.1

R7.10.1

R7.10.1

  • R7.9.1

  • R7.8.1

  • R7.7.1

  • R7.5.2

  • R7.5.1

  • R7.3.2

  • R7.8.1

  • R7.9.1

  • R7.10.1

  • R24.1.1

R24.3.1

R24.3.1

  • R24.1.1

  • R7.10.1

  • R7.9.1

  • R7.8.1

  • R25.3.1

  • R24.3.1

  • R24.1.1

  • R71.0.1

  • R7.9.1

  • R7.8.1

  • R7.7.1

R25.4.1

R25.4.1

  • R25.3.1

  • R24.3.1

  • R24.1.1

  • R71.0.1

  • R7.9.1

  • R7.8.1

  • R7.7.1

  • R25.4.1

  • R25.3.1

  • R24.3.1

  • R24.1.1

  • R7.10.1

  • R7.9.1

  • R7.8.1

  • R7.3.2

R26.1.1

R26.1.1

  • R25.4.1

  • R25.3.1

  • R24.3.1

  • R24.1.1

  • R7.10.1

  • R7.9.1

  • R7.8.1

  • R7.3.2