Upgrading-to-content-cloud-cms-12
4 Articles
Breaking changes in CMS 12
29 min
Updated19 Sep 2026
To view the complete list of changes, see the release notes feed https //world. optimizely.
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Upgrade to CMS 12
3 min
Updated19 Sep 2026
Optimizely Content Management System (CMS 12) was built to support ASP. NET Core and higher and is similar to CMS 11 to make upgrading as simple as possible.
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Upgrade Assistant
12 min
Updated10 Sep 2026
The Upgrade assistant automates the transition from an ASP. NET Standard project to an ASP.
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Why upgrade to CMS 12?
3 min
Updated26 Aug 2026
Optimizely Content Management System (CMS 11) is built on ASP. NET 4.
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