Source note · Unified CM release trains and lifecycle dates
Sources older than 12.5 (10.0, 10.5, 11.0, 11.5 and 12.0) cannot direct-upgrade to Release 15. They must migrate with a PCD 15 Migration Task (V2V), or, except for 10.0, with Fresh Install with Data Import.
Checked 2026-10-14
- Vendor
- Cisco
- Product
- Cisco Unified Communications Manager
- Subsystem
- upgrade-path
- Deployment
- on-premises
- Region
- not restricted
- Release range
- 10.0 through 12.0 to 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, source 10.0, 10.5, 11.0/11.5 and 12.0 rows
Cite this note
APA
WarmTransfer. (2026, October 14). Unified CM release trains and lifecycle dates: source note cucm-versions-lifecycle-upgrade-pre-12-5-migrate-only. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-versions-lifecycle-upgrade-pre-12-5-migrate-only
BibTeX
@misc{warmtransfer-claim-cucm-versions-lifecycle-upgrade-pre-12-5-migrate-only,
title = {Unified CM release trains and lifecycle dates: source note cucm-versions-lifecycle-upgrade-pre-12-5-migrate-only},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-versions-lifecycle-upgrade-pre-12-5-migrate-only},
note = {Source note cucm-versions-lifecycle-upgrade-pre-12-5-migrate-only, checked 2026-10-14}
}