Source note · Unified CM release trains and lifecycle dates
When switching versions to Release 15, switch Unified CM nodes first (publisher, then subscribers) and IM&P nodes after them.
Checked 2026-10-14
- Vendor
- Cisco
- Product
- Cisco Unified Communications Manager
- Subsystem
- upgrade-path
- Deployment
- on-premises
- Region
- not restricted
- Release range
- 15 and SUs
- Checked
- 2026-10-14
Sources
- Compatibility Matrix for Cisco Unified Communications Manager and the IM and Presence Service, Release 15x — Cisco Systems · tier 2 current vendor documentation · Supported Upgrade and Migration Paths, sequencing note
Cite this note
APA
WarmTransfer. (2026, October 14). Unified CM release trains and lifecycle dates: source note cucm-versions-lifecycle-upgrade-node-sequence. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-versions-lifecycle-upgrade-node-sequence
BibTeX
@misc{warmtransfer-claim-cucm-versions-lifecycle-upgrade-node-sequence,
title = {Unified CM release trains and lifecycle dates: source note cucm-versions-lifecycle-upgrade-node-sequence},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-versions-lifecycle-upgrade-node-sequence},
note = {Source note cucm-versions-lifecycle-upgrade-node-sequence, checked 2026-10-14}
}