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

 Release :

    - yokohama

ft:locale :

    - en-US

ft:publication_title :

    - Yokohama Release Notes

ft:clusterId :

    - rn

bundleId :

    - rn


---

# Yokohama Patch 7 Hotfix 4

# Yokohama Patch 7 Hotfix 4 {#ariaid-title1}

Release version: Yokohama  
Updated October 15, 2025  
![](https://www.servicenow.com/docs/portal-asset/ico-clock) 1 minute to read  
The Yokohama Patch 7 Hotfix 4 release contains fixes to these problems.

Build information:
:   Build date: 10-09-2025_1925
:   Build tag: glide-yokohama-12-18-2024__patch7-hotfix4-10-07-2025
Important:  
For more information about how to upgrade an instance, see [ServiceNow upgrades](https://servicenow-prod.fluidtopics.net/gT4zpGHCQSL790audteXjw "The upgrade process moves your instance to a new ServiceNow release version. Understand the difference between upgrading and patching, release definitions, rollback and backup options, and how to test your non-production and production instance upgrades.").

For more information about the release cycle, see the [ServiceNow Release Cycle](https://support.servicenow.com/kb_view.do?sysparm_article=KB0547244).{#yokohama-patch-7-hf-4-PO__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_view.do?sysparm_article=KB0743854).

## Fixed problem {#yokohama-patch-7-hf-4-PO__section_dmt_mbp_zgc}

{#yokohama-patch-7-hf-4-PO__all-other-fixes__entry__4}

| Problem | Short description | Description | Steps to reproduce |
|-|-|-|-|
| Analytics Data API PRB1945218 | Memory leak of JSON serializer in multivis API | Each time a data request is processed, a new serializer is created and not released unless a GC is performed, which causes a memory leak. | 1. Create a dashboard. 2. Add a tab and add 50 identical single score vis: * Source: incident. * Condition: sys_id is empty. {#yokohama-patch-7-hf-4-PO__ul_fwv_32p_zgc} 3. Duplicate the tab 9 times so there are 500 visualizations in total. 4. Disable the property 'com.snc.dashboard.streaming.enabled'. 5. Stop the instance and start again, but don't access the instance in the browser. 6. Use VisualVM to capture the heapdump. 7. Search for 'IntegerDateSerializer' in the object list. * Observe that there are 0 results. {#yokohama-patch-7-hf-4-PO__ul_ppc_k2p_zgc} 8. Access the dashboard created in step 1. 9. Go over all 10 tabs. 10. Use VisualVM to capture the heapdump. 11. Search for 'IntegerDateSerializer'. * Observe that there are \~500 results. {#yokohama-patch-7-hf-4-PO__ul_brx_k2p_zgc} 12. Repeat steps 8 through 11 (get the heapdump and search). {#yokohama-patch-7-hf-4-PO__ol_ogr_12p_zgc} Observe that there are \~1000 results. Each time a data request is processed, a new serializer is created and not released unless a GC is performed, which causes a memory leak. |
| OneExtend PRB1944861 | Revert NASK licensing charge by token to not include input tokens | The assist charge logged in sys_gen_ai_usage_log is based on 1 assist per 1000 tokens, where tokens = input tokens + 3 \* output tokens. |   |
[ ]

{#yokohama-patch-7-hf-4-PO__all-other-fixes}

## Fixes included {#yokohama-patch-7-hf-4-PO__section_emt_mbp_zgc}

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.

* [Yokohama Patch 7 Hotfix 3](https://servicenow-prod.fluidtopics.net/T9cis8HJhjkv6fxeEPCfMQ "The Yokohama Patch 7 Hotfix 3 release contains fixes to these problems.")
* [Yokohama Patch 6](https://servicenow-prod.fluidtopics.net/BNjEZmwQIcYFm~7CXtuiIA "The Yokohama Patch 6 release contains important problem fixes.")
* [Yokohama Patch 5](https://servicenow-prod.fluidtopics.net/Aff4QuTPpkrqeTYFQvvOuw "The Yokohama Patch 5 release contains important problem fixes.")
* [Yokohama Patch 4](https://servicenow-prod.fluidtopics.net/0NZMP7lTOVEOXCW5pwnSdQ "The Yokohama Patch 4 release contains important problem fixes.")
* [Yokohama Patch 3](https://servicenow-prod.fluidtopics.net/jXrkPnnmOuaGleV7JYQPtA "The Yokohama Patch 3 release contains important problem fixes.")
* [Yokohama Patch 2](https://servicenow-prod.fluidtopics.net/gTw0R2nzVMQBcbdPC0soDw "The Yokohama Patch 2 release contains important problem fixes.")
* [Yokohama Patch 1](https://servicenow-prod.fluidtopics.net/HPuS6cI3Q9FclhqSglkLPQ "The Yokohama Patch 1 release contains important problem fixes.")
* [Yokohama security and notable fixes](https://servicenow-prod.fluidtopics.net/zY12c3el4NQneYtiA4kD1A "The Yokohama release contains important problem fixes.")
* [All other Yokohama fixes](https://servicenow-prod.fluidtopics.net/xk4JxNj~_l2ZYEt921KFzA "The Yokohama release contains important problem fixes.")
{#yokohama-patch-7-hf-4-PO__ul_j2p_ypq_lfc}