Cisco strongly recommends running the Upgrade Readiness COP file before a Release 15 upgrade, though it is not mandatory.

Checked 2026-09-25

Although it is not mandatory, we strongly recommend that you run the Upgrade Readiness COP file prior to the upgrade to maximize the upgrade success.
Vendor
Cisco
Product
Unified Communications Manager
Subsystem
COP files
Deployment
on-premises
Region
not restricted
Release range
Release 15 and SUs as of 2026-09-25
Checked
2026-09-25

Sources

Cite this note

APA

WarmTransfer. (2026, September 25). Planning a Unified CM upgrade: source note cucm-upgrade-planning-readiness-cop-recommended. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-upgrade-planning-readiness-cop-recommended

BibTeX

@misc{warmtransfer-claim-cucm-upgrade-planning-readiness-cop-recommended,
  title  = {Planning a Unified CM upgrade: source note cucm-upgrade-planning-readiness-cop-recommended},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/cucm-upgrade-planning-readiness-cop-recommended},
  note   = {Source note cucm-upgrade-planning-readiness-cop-recommended, checked 2026-09-25}
}

Read in context