Source note · Unified CM backup and upgrade
A direct upgrade to Release 15 is not supported from Unified CM 10.0 through 11.5. Those sources reach 15 by a PCD migration or by a fresh install with data import.
Checked 2026-09-24
- Vendor
- Cisco
- Product
- Unified Communications Manager
- Subsystem
- upgrade paths
- Deployment
- on-premises
- Region
- not restricted
- Release range
- 10.0 to 11.5 sources; 15 destination
- Checked
- 2026-09-24
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 chapter, supported upgrade paths table
Cite this note
APA
WarmTransfer. (2026, September 24). Unified CM backup and upgrade: source note cucm-backup-upgrade-no-direct-from-10-11. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-backup-upgrade-no-direct-from-10-11
BibTeX
@misc{warmtransfer-claim-cucm-backup-upgrade-no-direct-from-10-11,
title = {Unified CM backup and upgrade: source note cucm-backup-upgrade-no-direct-from-10-11},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-backup-upgrade-no-direct-from-10-11},
note = {Source note cucm-backup-upgrade-no-direct-from-10-11, checked 2026-09-24}
}