--- sourceDocument: yokohama Combined Product Files sourceDocumentLink: https://www.servicenow.com/docs/r/yokohama/delta-xanadu-yokohama Release : - yokohama ft:locale : - en-US ft:publication_title : - yokohama Combined Product Files ft:clusterId : - delta3yx bundleId : - delta3yx --- # Combined ServiceNow Otto for Enterprise Architecture (EA) release notes for upgrades from Xanadu to Yokohama # Combined ServiceNow Otto for Enterprise Architecture (EA) release notes for upgrades from Xanadu to Yokohama {#ariaid-title1} Release version: Yokohama Updated October 8, 2026 ![](https://www.servicenow.com/docs/portal-asset/ico-clock) 6 minutes to read Summarize ![AI sparkle icon](https://servicenow.com/docs/portal-asset/ai-sparkle-icon) Summarized using AI This content was generated using new OpenAI-powered functionality. Results are provided on an as is basis and are not guaranteed to be accurate or complete. ## Summary of Combined ServiceNow Otto for Enterprise Architecture (EA) Release Notes for Upgrades from Xanadu to Yokohama This consolidated release notes document outlines all key updates, new features, changes, and important upgrade information for ServiceNow Otto for Enterprise Architecture (EA) between the Xanadu and Yokohama releases. It is designed to help ServiceNow customers prepare for and understand the impact of upgrading to the Yokohama release family, including patches and early availability features. Show full answer Show less ## New Features * **Access Control Lists (ACLs) for AI Agents:** Introduced in Xanadu, ACLs enable secure execution of AI agents and agentic workflows by controlling access through dynamic or AI user identities. Customers can configure who discovers and triggers these AI agents within AI Agent Studio. * **Enterprise Architecture Diagramming AI Agent:** Available from Xanadu Patch 7 and Yokohama Patch 1, this AI agent creates and summarizes Enterprise Modeling and Visualization diagrams to represent business application hierarchies. * **Architectural Decision Records (ADR) Summarization:** Enabled in early availability releases, ADRs provide a structured way to explain infrastructure decisions within the Enterprise Architecture Workspace. * **Interactive Generative AI Experience:** Customers can register business applications and digital integrations interactively using Now Assist within ServiceNow Virtual Agent. ## Changes * **Now Assist Usage Measurement Update:** Starting with Yokohama Patch 5, usage measurement switches from a 365-day look-back to a 365-day burn-down model, resetting at the contract anniversary. * **Default Now Assist Skills Activation:** New customers will have certain Now Assist skills automatically enabled upon installation. Existing customers upgrading to Yokohama Patch 11 will have any previously unconfigured skills turned on automatically, while previously configured skills remain as set. * **AI Agent and Workflow Configuration:** Enhanced ACL configuration allows specifying AI agents and workflows as dynamic or AI users and controls availability to authenticated or public users. * **UI Updates:** Renaming of the Enterprise Architecture Diagrammer AI agent to "Enterprise architecture diagrams AI agent" and changes in Now Assist Admin menu labels for clarity. ## Removals and Deprecations No features or functionalities were removed or deprecated between Xanadu and Yokohama releases. ## Activation and Licensing * Activation of Now Assist features requires enabling the ServiceNow Otto for Enterprise Architecture (EA) plugin. * The application requires an Enterprise Architecture Pro plus license. * ServiceNow Otto for Enterprise Architecture (EA) is available via the ServiceNow Store for easy access and activation. ## Additional Notes * No changes were introduced regarding browser requirements, accessibility, localization, or additional prerequisites between Xanadu and Yokohama. * Helpful tips include noting when no updates apply for certain release sections to streamline upgrade impact assessment. ## What Customers Can Expect By upgrading to Yokohama, ServiceNow customers will gain enhanced security controls for AI-driven automation, improved AI-assisted diagramming and architectural documentation capabilities, and streamlined activation and configuration processes. These improvements support enterprise architecture teams in modeling, visualizing, and explaining complex infrastructure decisions more effectively while maintaining secure, governed AI operations. Consolidated page of all release notes for ServiceNow Otto for Enterprise Architecture (EA) from Xanadu to Yokohama. ## How to use this page To help you prepare for your upgrade, we have combined the cross-family ServiceNow Otto for Enterprise Architecture (EA) release notes onto one page. Read this summary of the new features, changes, and updated information for your product from Xanadu to Yokohama. Tip: If there were no updates for a release notes section in a certain family release, we included a short note for your reference. For example, if a product did not have any updates in Tokyo, the row says "No updates for this release." ## Important information for upgrading ServiceNow Otto for Enterprise Architecture (EA) to Yokohama Before you upgrade to Yokohama, review these pre- and post-upgrade tasks and complete the tasks as needed. {#dfrn3-servicenowottoforenterprisearchitectureea-summary__entry__2} | Release | Release notes | |-|-| | Xanadu | No updates for this release. | | Yokohama | No updates for this release. | [ ] ## New features Between your current release family and Yokohama, new features were introduced for ServiceNow Otto for Enterprise Architecture (EA). {#dfrn3-servicenowottoforenterprisearchitectureea-summary__entry__8} | Release | Release notes | |-|-| | Xanadu | [Implement access control lists for security in AI agents](https://www.servicenow.com/docs/access?context=aia-security-implementation&family=xanadu&ft:locale=en-US) : Enable security implementation to execute AI agents and agentic workflows through access control lists (ACLs) and user identities.ACLs provide you with the capability to run AI agents and agentic workflow executions either as a dynamic user or an AI user. To learn about ACLs for ServiceNow Otto for Enterprise Architecture (EA) agents and skills, see [Configure](https://www.servicenow.com/docs/access?context=configure-now-assist-ea&family=xanadu&ft:locale=en-US) and [Generate enterprise architecture diagram agentic workflow](https://www.servicenow.com/docs/access?context=now-assist-aiagents-ea-diagramming-usecase&family=xanadu&ft:locale=en-US). Xanadu Patch 7 [Using Enterprise Architecture Diagramming AI agent](https://www.servicenow.com/docs/access?context=using-na-ea-ai-agents&family=xanadu&ft:locale=en-US) : Use the Enterprise Architecture Diagrammer AI agent to create Enterprise Modeling and Visualization diagrams for business applications hierarchy and summarize them. Xanadu Early Availability [ServiceNow Otto for Enterprise Architecture (EA)](https://www.servicenow.com/docs/access?context=now-assist-ea&family=xanadu&ft:locale=en-US) : * Use the ServiceNow® ServiceNow Otto for Enterprise Architecture (EA) application to summarize Architectural Decision Records (ADR) in the Enterprise Architecture Workspace. Use the Architectural Decision Records (ADR) to explain your infrastructure. ADR is a type of artifact that helps you to understand the background of a specific architectural decision. * Register a business application and a digital integration with an interactive generative AI experience using the Now Assist in Virtual Agent. For more information, see [ServiceNow Otto for Enterprise Architecture (EA)](https://www.servicenow.com/docs/access?context=now-assist-ea&family=xanadu&ft:locale=en-US). | | Yokohama | Yokohama Patch 1 [Using Enterprise Architecture Diagramming AI agent](https://www.servicenow.com/docs/access?context=using-na-ea-ai-agents&family=yokohama&ft:locale=en-US) : Use the Enterprise architecture diagrams AI agent to create Enterprise Modeling and Visualization diagrams for business applications hierarchy and summarize them. Yokohama Early Availability [ServiceNow Otto for Enterprise Architecture (EA)](https://www.servicenow.com/docs/access?context=now-assist-ea&family=yokohama&ft:locale=en-US) : * Use the ServiceNow® ServiceNow Otto for Enterprise Architecture (EA) application to summarize Architectural Decision Records (ADR) in the Enterprise Architecture Workspace. Use the Architectural Decision Records (ADR) to explain your infrastructure. ADR is a type of artifact that helps you to understand the background of a specific architectural decision. * Register a business application and a digital integration with an interactive generative AI experience using Now Assist in Virtual Agent. For more information, see [ServiceNow Otto for Enterprise Architecture (EA)](https://www.servicenow.com/docs/access?context=now-assist-ea&family=yokohama&ft:locale=en-US). | [ ] ## Changes Between your current release family and Yokohama, some changes were made to existing ServiceNow Otto for Enterprise Architecture (EA) features. {#dfrn3-servicenowottoforenterprisearchitectureea-summary__entry__14} | Release | Release notes | |-|-| | Xanadu | No updates for this release. | | Yokohama | [Changes to Now Assist usage measurement](https://www.servicenow.com/docs/access?context=monitoring-now-assist-usage&family=yokohama&ft:locale=en-US) : Starting with Yokohama Patch 5, Now Assist usage measurement is transitioning from a 365-day look-back model to a 365-day burn-down model, with usage resetting at the contract anniversary date. For more information, refer to [KB KB2704710: Now Assist Usage - Overview \& New Measurement Logic](https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB2704710). [Some Now Assist skills are turned on by default](https://www.servicenow.com/docs/access?context=now-assist-skills-on-by-default&family=yokohama&ft:locale=en-US) : The new default behavior works as follows: * New customers: When you install a Now Assist product, designated skills are turned on automatically. * Existing customers who are upgrading (starting with Yokohama Patch 11): Any previously unconfigured skill is turned on automatically (the skill was never configured and turned on, then turned off again). Previously configured skills that were turned on, then off, remain inactive. [Configure ACLs for AI agents and agentic workflows](https://www.servicenow.com/docs/access?context=aia-security-implementation&family=yokohama&ft:locale=en-US) : Configure the access control lists for who can discover and trigger AI agents and agentic workflows in their guided setups in AI Agent Studio. You can determine whether an AI agent or agentic workflow behaves as a dynamic user or as an AI user. You can also specify if an AI agent or agentic workflow can be available to all authenticated users or publicly available. Yokohama Patch 3 [Agentic workflow name update](https://www.servicenow.com/docs/access?context=using-na-ea-ai-agents&family=yokohama&ft:locale=en-US) : Renamed the Enterprise Architecture Diagrammer AI agent to Enterprise architecture diagrams AI agent. [UI name updates](https://www.servicenow.com/docs/access?context=configure-now-assist-ea&family=yokohama&ft:locale=en-US) : * In the All menu, renamed the Features option under Now Assist Admin to Skills. * On the Now Assist Admin page, renamed the Now Assist Features tab to Now Assist Skills. | [ ] ## Removed Between your current release family and Yokohama, some ServiceNow Otto for Enterprise Architecture (EA) features or functionality were removed. {#dfrn3-servicenowottoforenterprisearchitectureea-summary__entry__20} | Release | Release notes | |-|-| | Xanadu | No updates for this release. | | Yokohama | No updates for this release. | [ ] ## Deprecations Between your current release family and Yokohama, some ServiceNow Otto for Enterprise Architecture (EA) features or functionality were deprecated. {#dfrn3-servicenowottoforenterprisearchitectureea-summary__entry__26} | Release | Release notes | |-|-| | Xanadu | No updates for this release. | | Yokohama | No updates for this release. | [ ] ## Activation information Review information on how to activate ServiceNow Otto for Enterprise Architecture (EA). {#dfrn3-servicenowottoforenterprisearchitectureea-summary__entry__32} | Release | Release notes | |-|-| | Xanadu | Now Assist features are available with activation of the ServiceNow Otto for Enterprise Architecture (EA) plugin. The [ServiceNow Otto for Enterprise Architecture (EA)](https://www.servicenow.com/docs/access?context=now-assist-ea&family=xanadu&ft:locale=en-US) application requires an Enterprise Architecture Pro plus license. For more information, see [Install Now Assist plugins](https://www.servicenow.com/docs/access?context=install-now-assist-feature-plugins&family=xanadu&ft:locale=en-US). | | Yokohama | Activation information : Now Assist features are available with activation of the ServiceNow Otto for Enterprise Architecture (EA) plugin. The [ServiceNow Otto for Enterprise Architecture (EA)](https://www.servicenow.com/docs/access?context=now-assist-ea&family=yokohama&ft:locale=en-US) application requires an Enterprise Architecture Pro plus license. For more information, see [Install Now Assist plugins](https://www.servicenow.com/docs/access?context=install-now-assist-feature-plugins&family=yokohama&ft:locale=en-US). Important: ServiceNow Otto for Enterprise Architecture (EA) is available in the ServiceNow Store. For details, see the "Activation information" section of these release notes. | [ ] ## Additional requirements If any additional requirements were introduced or changed for ServiceNow Otto for Enterprise Architecture (EA) we have noted them here. {#dfrn3-servicenowottoforenterprisearchitectureea-summary__entry__38} | Release | Release notes | |-|-| | Xanadu | No updates for this release. | | Yokohama | No updates for this release. | [ ] ## Browser requirements If any specific browser requirements were introduced or changed for ServiceNow Otto for Enterprise Architecture (EA) we have noted them here. {#dfrn3-servicenowottoforenterprisearchitectureea-summary__entry__44} | Release | Release notes | |-|-| | Xanadu | No updates for this release. | | Yokohama | No updates for this release. | [ ] ## Accessibility information Review details on accessibility information for ServiceNow Otto for Enterprise Architecture (EA), such as specific requirements or compliance levels. {#dfrn3-servicenowottoforenterprisearchitectureea-summary__entry__50} | Release | Release notes | |-|-| | Xanadu | No updates for this release. | | Yokohama | No updates for this release. | [ ] ## Localization information If there are specific localization considerations for ServiceNow Otto for Enterprise Architecture (EA) we have noted them here. {#dfrn3-servicenowottoforenterprisearchitectureea-summary__entry__56} | Release | Release notes | |-|-| | Xanadu | No updates for this release. | | Yokohama | No updates for this release. | [ ] ## Highlight information If there are specific highlight considerations for ServiceNow Otto for Enterprise Architecture (EA) we have noted them here. {#dfrn3-servicenowottoforenterprisearchitectureea-summary__entry__62} | Release | Release notes | |-|-| | Xanadu | Xanadu Patch 10: Implement security in Now Assist AI agents with access control lists (ACLs). Xanadu Patch 7: Generate and summarize Enterprise Modeling and Visualization diagrams for business applications hierarchy, using the Enterprise Architecture Diagrammer AI agent. * Generate a summary of Architectural Decision Records (ADR) in the Enterprise Architecture Workspace. * Request a business application or a digital integration using Now Assist in ServiceNow® Virtual Agent. See [ServiceNow Otto for Enterprise Architecture (EA)](https://www.servicenow.com/docs/access?context=now-assist-ea&family=xanadu&ft:locale=en-US) for more information. | | Yokohama | [Yokohama Patch 11](https://www.servicenow.com/docs/access?context=yokohama-patch-11&family=yokohama&ft:locale=en-US) * Review changes to Now Assist usage measurement. * Some Now Assist skills, agents, and agentic workflows are on by default. * Additional role configuration is required for agentic workflows and AI agents included with Now Assist applications. Yokohama Patch 1: Generate and summarize Enterprise Modeling and Visualization diagrams for business applications hierarchy, using the Enterprise architecture diagrams AI agent. Yokohama Early Availability * Generate a summary of Architectural Decision Records (ADR) in the Enterprise Architecture Workspace. * Request a business application or a digital integration using Now Assist in ServiceNow® Virtual Agent. See [ServiceNow Otto for Enterprise Architecture (EA)](https://www.servicenow.com/docs/access?context=now-assist-ea&family=yokohama&ft:locale=en-US) for more information. | [ ]