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Jul 22, 2025
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[Security] 9.0.4 release notes #2203

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[Security] 9.0.4 release notes
natasha-moore-elastic Jul 22, 2025
0c3e036
removes incorrect statement
natasha-moore-elastic Jul 22, 2025
deb2c14
Merge branch 'main' into sec-rn-readd
natasha-moore-elastic Jul 22, 2025
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16 changes: 16 additions & 0 deletions release-notes/elastic-security/index.md
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Expand Up @@ -27,6 +27,22 @@ To check for security updates, go to [Security announcements for the Elastic sta

% *

## 9.0.4 [elastic-security-9.0.4-release-notes]

### Features and enhancements [elastic-security-9.0.4-features-enhancements]
* Improves logging of fatal exceptions in {{elastic-defend}}.

### Fixes [elastic-security-9.0.4-fixes]
* Fixes differences between risk scoring preview and persisted risk scores [#226456]({{kib-pull}}226456).
* Updates a placeholder and validation message in the **Related Integrations** section of the rule upgrade flyout [#225775]({{kib-pull}}225775).
* Excludes {{ml}} rules from installation and upgrade checks for users with Basic or Essentials licenses [#224676]({{kib-pull}}224676).
* Allows using days as a time unit in rule schedules, fixing an issue where durations normalized to days were incorrectly displayed as 0 seconds [#224083]({{kib-pull}}224083).
* Strips `originId` from connectors before rule import to ensure correct ID regeneration and prevent errors when migrating connector references on rules [#223454]({{kib-pull}}223454).
* Fixes an issue that prevented the AI Assistant Knowledge Base settings UI from displaying [#225033]({{kib-pull}}225033).
* Fixes a bug in {{elastic-defend}} where Linux network events would fail to load if IPv6 is not supported by the system.
* Fixes an issue in {{elastic-defend}} that may result in bugchecks (BSODs) on Windows systems with a very high volume of network connections.
* Fixes an issue where {{elastic-defend}} may incorrectly set the artifact channel in policy responses, and adds `manifest_type` to policy responses.

## 9.0.3 [elastic-security-9.0.3-release-notes]

### Features and enhancements [elastic-security-9.0.3-features-enhancements]
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2 changes: 1 addition & 1 deletion release-notes/elastic-security/known-issues.md
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Expand Up @@ -36,7 +36,7 @@ Instead of trying to pull the image from `docker.elastic.co/beats/elastic-agent:

**Applies to: {{agent}} 8.17.8, 8.18.3, and 9.0.3**

On July 8, 2025, a known issue was discovered in Elastic Defend's network driver that may lead to kernel pool corruption, resulting in bug checks (BSODs) on Windows systems with a large number of long-lived network connections that remain inactive for 30+ minutes. This issue has only been observed on Windows Server.
On July 8, 2025, a known issue was discovered in Elastic Defend's network driver that may lead to kernel pool corruption, resulting in bug checks (BSODs) on Windows systems with a large number of long-lived network connections that remain inactive for 30+ minutes.

The system may bug check with any of a variety of codes such as `SYSTEM_SERVICE_EXCEPTION` or `PAGE_FAULT_IN_NONPAGED_AREA`.

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