--- 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 App Engine release notes for upgrades from Xanadu to Yokohama # Combined ServiceNow Otto for App Engine 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) 4 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 App Engine Release Notes for Upgrades from Xanadu to Yokohama This consolidated release notes document provides ServiceNow customers with a comprehensive summary of all updates, new features, changes, and important upgrade information for ServiceNow Otto for App Engine from the Xanadu release through to Yokohama. It assists customers in preparing for their upgrade by detailing what to expect and how to activate and use the product effectively after the upgrade. Show full answer Show less ## Key Features * **Create an AI Agent:** Starting with Yokohama, users can create custom AI agents using AI Agent Studio to assist application users with specific tasks. * **Create a Skill:** Yokohama introduces the ability to create custom skills for Now Assist, providing greater flexibility with generative AI capabilities on the ServiceNow AI Platform. * **Deploy AI Agents in Custom Applications:** Yokohama Patch 3 enables creation and deployment of AI agents within custom applications, accelerating time-to-value and improving workflow efficiency. ## Key Changes * **Now Assist Usage Measurement:** From Yokohama Patch 5, usage measurement moves from a 365-day look-back to a 365-day burn-down model, resetting at the contract anniversary date, affecting how usage is tracked and managed. * **Default Activation of Now Assist Skills:** Starting Yokohama Patch 11, some Now Assist skills are enabled by default for new customers and previously unconfigured skills are automatically turned on for existing customers upgrading. * **Access Control for AI Agents and Workflows:** Now you can configure ACLs in AI Agent Studio to control who can discover and trigger AI agents and agentic workflows, define their behavior as dynamic or AI users, and specify availability to authenticated or public users. ## Activation and Additional Considerations * **Activation:** ServiceNow Otto for App Engine is available via the ServiceNow Store. Customers must request and install it from there. * **Entitlements:** Verify your entitlements to confirm access to the application. * **Browser, Localization, and Accessibility:** No new changes or requirements were introduced from Xanadu to Yokohama in these areas. ## Practical Implications for ServiceNow Customers By upgrading to Yokohama, customers gain enhanced AI capabilities with customizable AI agents and skills that can be integrated directly into their applications, improving automation and user assistance. The updated usage measurement model and default skill activations require customers to review their Now Assist usage and configurations. ACL configuration for AI agents ensures better governance and security control over AI-driven workflows. Activation through the ServiceNow Store streamlines access and maintenance of the product. Consolidated page of all release notes for ServiceNow Otto for App Engine 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 App Engine 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 App Engine to Yokohama Before you upgrade to Yokohama, review these pre- and post-upgrade tasks and complete the tasks as needed. {#dfrn3-servicenowottoforappengine-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 App Engine. {#dfrn3-servicenowottoforappengine-summary__entry__8} | Release | Release notes | |-|-| | Xanadu | No updates for this release. | | Yokohama | [Create an AI agent](https://www.servicenow.com/docs/access?context=configure-next-best-action-agent&family=yokohama&ft:locale=en-US) : Create a custom AI agent in AI Agent Studio to assist your application users with their tasks. [Create a skill](https://www.servicenow.com/docs/access?context=create-new-skill&family=yokohama&ft:locale=en-US) : Create a custom skill for Now Assist, enabling you to have greater flexibility with the generative AI capabilities available on the ServiceNow AI Platform. | [ ] ## Changes Between your current release family and Yokohama, some changes were made to existing ServiceNow Otto for App Engine features. {#dfrn3-servicenowottoforappengine-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. | [ ] ## Removed Between your current release family and Yokohama, some ServiceNow Otto for App Engine features or functionality were removed. {#dfrn3-servicenowottoforappengine-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 App Engine features or functionality were deprecated. {#dfrn3-servicenowottoforappengine-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 App Engine. {#dfrn3-servicenowottoforappengine-summary__entry__32} | Release | Release notes | |-|-| | Xanadu | No updates for this release. | | Yokohama | Activation information : Install ServiceNow Otto for App Engine by requesting it from the ServiceNow Store. Visit the [ServiceNow Store](https://store.servicenow.com/sn_appstore_store.do#!/store/home) website to view all the available apps and for information about submitting requests to the store. For cumulative release notes information for all released apps, see the [ServiceNow Store version history release notes](https://www.servicenow.com/docs/access?context=sn-store-release-notes&family=yokohama&ft:locale=en-US). Important: ServiceNow Otto for App Engine 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 App Engine we have noted them here. {#dfrn3-servicenowottoforappengine-summary__entry__38} | Release | Release notes | |-|-| | Xanadu | No updates for this release. | | Yokohama | Additional requirements : Check your entitlements to determine whether you have access to the ServiceNow Otto for App Engine application. | [ ] ## Browser requirements If any specific browser requirements were introduced or changed for ServiceNow Otto for App Engine we have noted them here. {#dfrn3-servicenowottoforappengine-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 App Engine, such as specific requirements or compliance levels. {#dfrn3-servicenowottoforappengine-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 App Engine we have noted them here. {#dfrn3-servicenowottoforappengine-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 App Engine we have noted them here. {#dfrn3-servicenowottoforappengine-summary__entry__62} | Release | Release notes | |-|-| | Xanadu | No updates for this release. | | 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 3](https://www.servicenow.com/docs/access?context=yokohama-patch-3&family=yokohama&ft:locale=en-US) * Create and deploy AI agents within custom applications, helping to empower creators and accelerate time-to-value. * Build custom AI agents and skills for the unique workflow of an application using AI Skill Kit and AI Agent Studio. * Leverage AI agents and skills created with ServiceNow Otto for App Engine in custom applications at runtime, helping improve efficiency. See [Now Assist for App Engine](https://www.servicenow.com/docs/access?context=add-ai-to-custom-apps-with-now-assist-for-app-engine-enterprise&family=yokohama&ft:locale=en-US) for more information. | [ ]