Source note · Planning a Unified CM upgrade
Cisco counts an upgrade as complete only when every node has installed the inactive version, every node has switched version and rebooted, and database replication has finished.
Checked 2026-09-25
The end-to-end process for 'upgrade' is defined as all nodes completing upgrade-inactive versions, all nodes completing switch-version-reboot, and database replication completion
- Vendor
- Cisco
- Product
- Unified Communications Manager
- Subsystem
- sequencing
- Deployment
- on-premises
- Region
- not restricted
- Release range
- Release 15 and SUs as of 2026-09-25
- Checked
- 2026-09-25
Sources
- Upgrade and Migration Guide for Cisco Unified Communications Manager and the IM and Presence Service, Release 15 and SUs - Planning the Upgrade — Cisco Systems · tier 2 current vendor documentation · Planning the Upgrade > Upgrade Sequence / time requirements
Cite this note
APA
WarmTransfer. (2026, September 25). Planning a Unified CM upgrade: source note cucm-upgrade-planning-upgrade-end-to-end-definition. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-upgrade-planning-upgrade-end-to-end-definition
BibTeX
@misc{warmtransfer-claim-cucm-upgrade-planning-upgrade-end-to-end-definition,
title = {Planning a Unified CM upgrade: source note cucm-upgrade-planning-upgrade-end-to-end-definition},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-upgrade-planning-upgrade-end-to-end-definition},
note = {Source note cucm-upgrade-planning-upgrade-end-to-end-definition, checked 2026-09-25}
}