Release note : GCap V2.5.4.2

Last update November 2025: version v1

Table of contents
  • 1. Presentation of GCap version 2.5.4.2
  • 2. The new features
  • 3. Other features and improvements
  • 4. Patches
  • 5. Known problems and limitations
  • 6. Software compatibility
  • 7. Hardware compatibility
  • 8. Updating procedure


Release note : GCap V2.5.4.2

Last update November 2025: version v1

Table of contents
  • Table of contents :
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Table of contents :

  • 1. Presentation of GCap version 2.5.4.2
  • 2. The new features
    • 2.1. Sigflow detection engine
    • 2.2. Installation
  • 3. Other features and improvements
  • 4. Patches
    • 4.1. Error during the first restart following an update to v2.5.4.0
    • 4.2. Blocking of the update in v2.5.4.0
    • 4.3. After the update, error in executing commands with certain hardware versions
    • 4.4. Sigflow: error when starting the detection engine
    • 4.5. Sigflow: XDP filters do not apply correctly
    • 4.6. Sigflow: receiving specific packets from the Modbus protocol may cause a restart of the engine
    • 4.7. Netdata: absence of certain metrics
    • 4.8. Sigflow: error when starting the detection engine
    • 4.9. Netdata: erroneous value
    • 4.10. System: Inadequate performance settings
    • 4.11. System: unable to install
    • 4.12. Sigflow: Problem with cluster interfaces
    • 4.13. Sigflow: memory allocation issue for some streams
    • 4.14. System: GCap storage space is running out
    • 4.15. System: CPU distribution
    • 4.16. System: default selection in the boot menu
    • 4.17. Sigflow: options for debugging
    • 4.18. Update: problem on restart
  • 5. Known problems and limitations
    • 5.1. Netdata: badges for network statistics
    • 5.2. Sigflow: rebuilding files with FTP protocol
  • 6. Software compatibility
    • 6.1. Compatibility with the GCenter
  • 7. Hardware compatibility
  • 8. Updating procedure
    • 8.1. Prerequisites
    • 8.2. Retained data
    • 8.3. Data deleted
    • 8.4. Installation procedure via the GCenter
    • 8.5. Installation procedure directly from the GCap

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