--- sourceDocument: yokohama Combined Product Files sourceDocumentLink: https://servicenow-prod.fluidtopics.net/r/yokohama/delta-xanadu-yokohama Release : - yokohama ft:locale : - en-US ft:publication_title : - yokohama Combined Product Files ft:clusterId : - delta3yx bundleId : - delta3yx --- # Combined Now Assist for App Engine release notes for upgrades from Xanadu to Yokohama # Combined Now Assist for App Engine release notes for upgrades from Xanadu to Yokohama {#ariaid-title1} Release version: Yokohama Updated September 10, 2026 ![](https://www.servicenow.com/docs/portal-asset/ico-clock) 3 minutes to read Consolidated page of all release notes for Now Assist 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 Now Assist 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 Now Assist for App Engine to Yokohama Before you upgrade to Yokohama, review these pre- and post-upgrade tasks and complete the tasks as needed. {#dfrn3-nowassistforappengine-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 Now Assist for App Engine. {#dfrn3-nowassistforappengine-summary__entry__8} | Release | Release notes | |-|-| | Xanadu | No updates for this release. | | Yokohama | **[Yokohama Patch 3](https://www.servicenow.com/docs/access?context=yokohama-patch-3&family=yokohama&ft:locale=en-US)** [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 Now Assist for App Engine features. {#dfrn3-nowassistforappengine-summary__entry__14} | 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)** [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 now 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. : | [ ] ## Removed Between your current release family and Yokohama, some Now Assist for App Engine features or functionality were removed. {#dfrn3-nowassistforappengine-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 Now Assist for App Engine features or functionality were deprecated. {#dfrn3-nowassistforappengine-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 Now Assist for App Engine. {#dfrn3-nowassistforappengine-summary__entry__32} | Release | Release notes | |-|-| | Xanadu | No updates for this release. | | Yokohama | Install Now Assist for App Engine by requesting it from the ServiceNow Store. | [ ] ## Additional requirements If any additional requirements were introduced or changed for Now Assist for App Engine we have noted them here. {#dfrn3-nowassistforappengine-summary__entry__38} | Release | Release notes | |-|-| | Xanadu | No updates for this release. | | Yokohama | Check your entitlements to determine whether you have access to the Now Assist for App Engine application. | [ ] ## Browser requirements If any specific browser requirements were introduced or changed for Now Assist for App Engine we have noted them here. {#dfrn3-nowassistforappengine-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 Now Assist for App Engine, such as specific requirements or compliance levels. {#dfrn3-nowassistforappengine-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 Now Assist for App Engine we have noted them here. {#dfrn3-nowassistforappengine-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 Now Assist for App Engine we have noted them here. {#dfrn3-nowassistforappengine-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 Now Assist Skill Kit and AI Agent Studio. * Leverage AI agents and skills created with Now Assist 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. | [ ]