2026 Optimizely CMS 13 release notes

Follow this article to receive email notifications when new packages are available for Optimizely Content Management System (CMS) 13. Product packages are found on the Optimizely NuGet server.

Are you looking for the 2026 CMS 12 release notes or the 2026 CMS (SaaS) release notes?

Release highlights

Optimizely Opal Chat

April 7

Released the Optimizely.Cms.OpalChat 2.0.0 NuGet package that includes Opal Chat and tools to help you create and manage content and content types, optimize for search engines, and improve AI discoverability. See Available tools for CMS 13.

• paas_cms_list_content_types – Lists all content types in CMS.
• paas_cms_get_content_type_details – Retrieves detailed information about a specific content type, including all property definitions with types, validation rules, and group assignments.
• paas_cms_create_content_type – Creates a new content type with a key, display name, base type, and property definitions.
• paas_cms_update_content_type – Modifies an existing content type's display name, description, or property definitions.
• paas_cms_delete_content_type – Deletes a content type from CMS. The content type must not have any existing content instances.
• paas_cms_list_property_groups – Lists all property groups in the CMS with their names and sort order.
• paas_cms_create_property_group – Creates a new property group with a unique key and optional sort order.
• paas_cms_create_content_item – Creates a new content item as a draft. Returns a contentKey (GUID) and contentVersion for subsequent operations.
• paas_cms_get_content_data – Retrieves a content item's data including all non-metadata properties. Fetches a specific version or the latest published version.
• paas_cms_update_content_item – Updates properties on a content item. Accepts a JSON object of property name and value pairs.
• paas_cms_delete_content_item – Moves a content item to the waste basket. An editor can restore the item.
• paas_cms_publish_content_item – Publishes a content item immediately or schedules it for a future date and time. Requires a content version number.
• paas_cms_create_content_variation – Creates a new locale variation of a page or experience content item.
• paas_cms_get_content_preview_url – Generates a preview URL for a specific content version, letting Opal fetch and analyze the rendered HTML.
• paas_cms_seo_analysis – Analyzes content SEO performance and provides AI-powered recommendations.
• paas_cms_seo_edit – Applies SEO recommendations to CMS content.
• paas_cms_geo_analysis – Performs an AI-powered audit of content for LLM discoverability.
• paas_cms_geo_apply – Applies JSON-LD schema templates to the content's JsonLdTemplates property. Creates a new draft version with the schema markup.