---
sourceDocument: Xanadu Release Notes
sourceDocumentLink: https://servicenow-prod.fluidtopics.net/r/xanadu/release-notes

 Release :

    - xanadu

ft:locale :

    - en-US

ft:publication_title :

    - Xanadu Release Notes

ft:clusterId :

    - rn

bundleId :

    - rn


---

# Xanadu Patch 4b Hotfix 2

# Xanadu Patch 4b
Hotfix 2 {#ariaid-title1}

* Release version: Xanadu
* 
* Updated March 6, 2025
* 
* ![](https://www.servicenow.com/docs/portal-asset/ico-clock) 1 minute to read

The Xanadu Patch 4b Hotfix
2 release contains fixes to these problems.

Build information:
:   Build date: 03-04-2025_0721
:   Build tag: glide-xanadu-07-02-2024__patch4b-hotfix2-02-27-2025
Important:  
For more information about how to upgrade an instance, see [ServiceNow Upgrades](https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB0547244).

For more information about the release cycle, see the [ServiceNow Release Cycle](https://support.servicenow.com/kb_view.do?sysparm_article=KB0547244).{#xanadu-patch-4b-hf-2__p_download-version}  
Note:  
This ServiceNow AI Platform major family release is now available in ServiceNow's Regulated Market environments. For more information about services available in isolated environments, see [KB0743854](https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB0743854&_ga=2.238511747.200430442.1684856845-2052949275.1611611591).

## Fixed problem {#xanadu-patch-4b-hf-2__section_e53_5tg_n2c}

{#xanadu-patch-4b-hf-2__all-other-fixes__entry__4}

| Problem | Short description | Description | Steps to reproduce |
|-|-|-|-|
| AI Search PRB1836358 [KB1790348](https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB1790348) | A race condition causes an incorrect deleteMultiple() query to be generated on the v_search_genius_result and sys_variable_value tables | When the AI Search Genius Result is requested and processed in a multi-threaded, high-concurrency environment, such as when multiple users simultaneously perform search functions on a portal or Virtual Agent (VA), a thread safety issue arises. This issue may cause an incorrect deleteMultiple() query to be generated, potentially leading to the deletion of excessive records from the sys_variable_value table. This may result in unexpected outcomes for various components including the Integration Hub, Service Catalog items, and workflows due to the absence of these critical records. | Refer to the listed KB article for details. |
[ ]

{#xanadu-patch-4b-hf-2__all-other-fixes}

## Fixes included {#xanadu-patch-4b-hf-2__section_f53_5tg_n2c}

Unless any exceptions are noted, you can safely upgrade to this release version from any of the versions listed below. These prior versions contain PRB fixes that are also included with this release.
Be sure to upgrade to the latest listed patch that includes all of the PRB fixes you are interested in.

* [Xanadu Patch 4b Hotfix 1](https://servicenow-prod.fluidtopics.net/DmydcR8mLlx2klNPmAc_KA "The Xanadu Patch 4b Hotfix 1 release contains fixes to these problems.")
* [Xanadu Patch 4](https://servicenow-prod.fluidtopics.net/OgQh0ODWfyI4VhUYcHdOnA "The Xanadu Patch 4 release contains important problem fixes.")
* [Xanadu Patch 3](https://servicenow-prod.fluidtopics.net/xFmrrIc0hj6QrbCtaex1ag "The Xanadu Patch 3 release contains important problem fixes.")
* [Xanadu Patch 2](https://servicenow-prod.fluidtopics.net/xWd1yxeJXXiW4XVp_LWsYQ "The Xanadu Patch 2 release contains important problem fixes.")
* [Xanadu Patch 1](https://servicenow-prod.fluidtopics.net/SeaTUwH9Ppxa1kbhUdLy9A "The Xanadu Patch 1 release contains important problem fixes.")
* [Xanadu security and notable fixes](https://servicenow-prod.fluidtopics.net/kJKHkxnGv~e~lZlOXUyBtg "The Xanadu release contains important problem fixes.")
* [All other Xanadu fixes](https://servicenow-prod.fluidtopics.net/yBFTl0lL7IReSmFoGpZGCA "The Xanadu release contains important problem fixes.")
{#xanadu-patch-4b-hf-2__ul_lqz_r5g_n2c}