Knowledge BaseSolutionsUpgrade ZStack Cloud from 4.8.x to 5.5.x

Upgrade ZStack Cloud from 4.8.x to 5.5.x

SolutionsZCF · CloudVersions4.8.x / 5.5.xArticle IDKB-200118Updated2026-09-16

Applicable Scenario

  • Product: ZCF
  • Component: ZStack Cloud
  • ZStack Cloud versions: from 4.8.x to 5.5.x
  • Operating system: h84r
  • Deployment: dual management nodes
  • Trigger condition: upgrade the dual-management-node platform to 5.5.x and update qemu/libvirt to LTS versions.

Symptoms

  • The current platform is 4.8.x, which is not an LTS release.
  • The platform must be upgraded to 5.5.x.
  • The upgrade includes the control plane and qemu and libvirt components.
  • Compatibility risks include experimental repo, residual userspace-rcu, and missing virtio-vga.

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Upgrade ZStack Cloud from 4.8.x to 5.5.x | KB-200118 | ZStack Resource Center