Optimizely Forms for CMS 13

Optimizely Forms 6.0.0 targets Optimizely Content Management System (CMS) 13 and .NET 10. Upgrade to this version to run Forms on the CMS 13 platform. This release modernizes configuration and dependency injection (DI) and removes APIs deprecated in earlier versions.

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Important

Optimizely Forms 6.0.0 does not work with Experience. Migrate to CMS 13 before upgrading to Forms 6.0.0.

What changed

Identify which areas of your project require updates by reviewing the following changes:

• Explicit DI registration – Forms no longer auto-registers services. Call services.AddForms() in Program.cs.
• Configuration moved to appsettings.json – The Forms.config XML file no longer exists. Configure all settings under the Forms key in appsettings.json.
• Removed deprecated APIs – Interfaces, methods, and classes marked [Obsolete] in earlier versions no longer exist. Removals include IEPiServerFormsCoreConfig, IExcludeValidatorTypes, ActiveExternalFieldMappingTable, and several FormBusinessService overloads.
• System.Text.Json replaces Newtonsoft.Json – PropertyGenericList<T> uses System.Text.Json with camelCase naming. Update custom model types that rely on Newtonsoft.Json attributes.
• CMS 13 API alignment – Scheduled jobs, property definition types, and other platform APIs use their CMS 13 equivalents.

See Breaking changes in Optimizely Forms 6.0.0 and Migrate to Optimizely Forms 6.0.0.