Combined Generative AI Controller release notes for upgrades from Xanadu to Yokohama

yokohama Combined Product Files

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yokohama Combined Product Files

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Combined Generative AI Controller release notes for upgrades from Xanadu to Yokohama

Release version: Yokohama

Updated July 20, 2026

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Summary of Combined Generative AI Controller Release Notes for Upgrades from Xanadu to Yokohama

This summary consolidates all the key updates, new features, changes, and important upgrade information for the Generative AI Controller as you move from the Xanadu release family to the Yokohama release family. The Generative AI Controller is a ServiceNow AI Platform feature activated with any Now Assist application. Yokohama is installed or updated alongside Now Assist applications, and this summary helps you prepare for a smooth upgrade process.

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Key Features

Metadata Logging Enhancements: Introduction of detailed metadata log tables capturing conversational context, feedback, error codes, and third-party LLM details to aid debugging and analysis.
Global Model Selection: Now Assist Admins can globally choose between GPT-4.0 and Now Assist LLM models for conversational skills, enabling compliance with regional restrictions, especially useful for APAC users.
Translation and Language Support: Improved multilingual support including dynamic translation features and logging of translated text metadata for Now Assist users.
Enhanced AI Asset Inventory: New metadata fields in AI Control Tower provide better visibility into AI asset statuses, including lifecycle and retirement dates.
Data Privacy Integration: Transition from Sensitive Data Handler to the Data Privacy application for anonymizing personally identifiable information (PII), with new configuration tables and processes for admins.
Domain-Based LLM Usage Control: Ability to enable or disable Now Assist per domain to restrict LLM data processing as required.
AI Model Version Mappings: Visibility into mappings between AI model versions and providers through a dedicated mapping table, aiding in management and compliance.

Changes

Prompt Updates: Revised prompts for core capabilities like content generation, summarization, sentiment analysis, semantic filtering, and recursive summarization to improve processing efficiency.
Now Assist Usage Measurement: Transition to a 365-day burn-down model with usage resetting at contract anniversary date, improving usage tracking accuracy.
Default Now Assist Skills Activation: New customers have designated skills turned on by default; existing customers upgrading will have previously unconfigured skills enabled automatically, while skills explicitly turned off remain inactive.
Data Privacy Configuration: New admin responsibilities to configure anonymization settings using the Data Privacy application instead of the deprecated Sensitive Data Handler.

Upgrade and Activation Guidance

Before upgrading to Yokohama, review and complete pre- and post-upgrade tasks to ensure a smooth transition. Generative AI Controller installs or updates automatically with Now Assist application installation or updates. For installation issues, consult relevant knowledge articles or contact ServiceNow Support.

Activation of Generative AI Controller continues to be tied to the activation of any Now Assist application.

Removed and Deprecated Features

No features or functionalities were removed between Xanadu and Yokohama.
The dependency on Sensitive Data Handler has been removed; existing regular expressions configured there are migrated to Data Privacy application during upgrade.

Additional Notes

Localization: Generative AI Controller uses Microsoft Azure OEM for dynamic translation, configurable via Now Assist Admin console.
Security and Compliance: Enhanced data privacy controls and metadata tracking support compliance with organizational policies and data protection regulations.
Accessibility and Browser Requirements: No changes were introduced in these areas between Xanadu and Yokohama.

Consolidated page of all release notes for Generative AI Controller from Xanadu to Yokohama.

How to use this page

To help you prepare for your upgrade, we have combined the cross-family Generative AI Controller 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 Generative AI Controller to Yokohama

Before you upgrade to Yokohama, review these pre- and post-upgrade tasks and complete the tasks as needed.


Release	Release notes
Xanadu	No updates for this release.
Yokohama	Generative AI Controller is installed and updated when you install or update any Now Assist application. If you have issues installing or updating applications, see this knowledge article for steps that may address your issue. Otherwise, you can make a Support case.

New features

Between your current release family and Yokohama, new features were introduced for Generative AI Controller.


Release	Release notes
Xanadu	Xanadu Patch 3 Metadata log table for generative AI requests Use the new metadata log table that includes information about the requesting conversation, the capability definition, provided feedback (if any), and error codes. Translation for Now Assist Support users who speak different languages with new language information in LLM request metadata, better controls for Dynamic Translation, and translated text logging. Xanadu Patch 7 Global Model selection for conversational skills Enable Now Assist Admins to choose between GPT4.o and Now Assist LLM model for data routing at a global level. This ensures compliance with any regional restrictions and helpful for APAC users who may face limitations with US-based models, such as GPT-4.0.
Yokohama	Yokohama Patch 10 Administrator access to Gen AI log Access the Gen AI log [sys_generative_ai_log] table to gain insights for debugging purposes. HR-related records remain restricted to HR admins. Enhanced AI asset inventory Track the enhanced AI asset inventory through AI Control Tower using new metadata fields in the Model [sys_generative_ai_model_config] and Prompt [sys_generative_ai_config] tables. Gain better visibility into AI asset status and life-cycle details, such as retirement dates. Yokohama Patch 8 AI Model Version Mappings Review the mappings between AI model versions, their providers in the Gen AI Model Version Mapping [sys_gen_ai_model_version_mapping] table. It shows mapping between source and target models, along with associated metadata, such as skill type, model type, resource associations, and provider information. Yokohama Patch 6 Identify third-party LLM information Access the Gen AI Log Metadata [sys_gen_ai_log_metadata] table to identify which LLM model, version, and requested language was used to generate the AI content. Restrict LLM usage based on the domain Enable or disable Now Assist for each domain so that you can restrict the use of LLMs and avoid using AI for data processing, if needed. Yokohama Patch 1 Global Model selection for conversational skills Enable Now Assist Admins to choose between GPT4.o and Now Assist LLM model for data routing at a global level. This ensures compliance with any regional restrictions and helpful for APAC users who may face limitations with US-based models, such as GPT-4.0.

Changes

Between your current release family and Yokohama, some changes were made to existing Generative AI Controller features.


Release	Release notes
Xanadu	Directions for generative AI updates for Generative AI Controller The prompts, which are the instructions to the large language model (LLM), for all four capabilities (Generic Prompt, Generate Content, Summarization, and Sentiment Analysis), semantic filtering, and recursive summarization have been updated.
Yokohama	Yokohama Patch 11 Changes to Now Assist usage measurement 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. Some Now Assist skills are now turned on by default 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. Yokohama Patch 1 Configure Data Privacy and Data Discovery to protect the personally identifying information (PII) of your users. Generative AI Controller has changed to use the Data Privacy application instead of the Sensitive Data Handler to help anonymize PII. The process for choosing what gets anonymized and how has shifted to different tables and forms that your administrator must configure for your organization.

Removed

Between your current release family and Yokohama, some Generative AI Controller features or functionality were removed.


Release	Release notes
Xanadu	No updates for this release.
Yokohama	No updates for this release.

Deprecations

Between your current release family and Yokohama, some Generative AI Controller features or functionality were deprecated.


Release	Release notes
Xanadu	No updates for this release.
Yokohama	The dependency on Sensitive Data Handler has been removed. Regular expressions that are configured with Sensitive Data Handler are applied to the Data Privacy application with a fix script when you upgrade to Yokohama.

Activation information

Review information on how to activate Generative AI Controller.


Release	Release notes
Xanadu	Generative AI Controller is a ServiceNow AI Platform feature that is available with activation of any ServiceNow® Now Assist application. For details, see Installing Generative AI Controller.
Yokohama	Generative AI Controller is a ServiceNow AI Platform feature that is available with activation of a Now Assist application. For details, see Installing Generative AI Controller and Install Now Assist plugins.

Additional requirements

If any additional requirements were introduced or changed for Generative AI Controller we have noted them here.


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 Generative AI Controller we have noted them here.


Release	Release notes
Xanadu	No updates for this release.
Yokohama	No updates for this release.

Accessibility information

Review details on accessibility information for Generative AI Controller, such as specific requirements or compliance levels.


Release	Release notes
Xanadu	No updates for this release.
Yokohama	No updates for this release.

Localization information

If there are specific localization considerations for Generative AI Controller we have noted them here.


Release	Release notes
Xanadu	Generative AI Controller uses Microsoft Azure OEM for Dynamic Translation in Now Assist for multi-language support. You can enable dynamic translation from the Now Assist Admin console.
Yokohama	No updates for this release.

Highlight information

If there are specific highlight considerations for Generative AI Controller we have noted them here.


Release	Release notes
Xanadu	Xanadu Patch 3 Review a read-only metadata log table for generative AI requests. Use the improved language support for skills and capabilities, including the Dynamic Translation services and native translation by the LLMs. Xanadu Patch 1 Updated prompts for capabilities, semantic filtering, and recursive summarization that improve latency and processing for Generative AI Controller capabilities and Now Assist skills. See Generative AI Controller for more information.
Yokohama	Yokohama Patch 11 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. Previous Patch releases Protect your users by configuring settings for anonymization of personally identifiable information (PII) with the Data Privacy application. See Generative AI Controller for more information.