Cms-10

2 Articles

Breaking changes in CMS 10

5 min

Updated26 Aug 2026

To view the complete list of changes, see the release notes feed /epiui/CMS/Content/documentation/Release-Notes,,82523/? epieditmode=False .

Upgrade to CMS 10

2 min

Updated26 Aug 2026

No data migration is required; updating to Optimizely Content Management System (CMS 10) is no different from updating to the feature updates delivered previously via NuGet. To make sure the upgrade is as smooth as possible, there are a few steps that you may want to take that are discussed in the next sections.