Source note · Planning a Unified CM upgrade
Cluster-wide version switching is available only for Direct Standard Upgrades from 12.5(x) or later. Otherwise each node is switched individually, for example with utils system switch-version.
Checked 2026-09-25
- Vendor
- Cisco
- Product
- Unified Communications Manager
- Subsystem
- version switching
- Deployment
- on-premises
- Region
- not restricted
- Release range
- source 12.5(x) and later
- Checked
- 2026-09-25
Sources
- Upgrade and Migration Guide for Cisco Unified Communications Manager and the IM and Presence Service, Release 15 and SUs - Upgrade Tasks — Cisco Systems · tier 2 current vendor documentation · Upgrade Tasks > Switch Versions
Cite this note
APA
WarmTransfer. (2026, September 25). Planning a Unified CM upgrade: source note cucm-upgrade-planning-clusterwide-switch-125-plus. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-upgrade-planning-clusterwide-switch-125-plus
BibTeX
@misc{warmtransfer-claim-cucm-upgrade-planning-clusterwide-switch-125-plus,
title = {Planning a Unified CM upgrade: source note cucm-upgrade-planning-clusterwide-switch-125-plus},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-upgrade-planning-clusterwide-switch-125-plus},
note = {Source note cucm-upgrade-planning-clusterwide-switch-125-plus, checked 2026-09-25}
}