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9.0.1 release notes #1309

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2653f5d
First draft
nastasha-solomon Apr 29, 2025
0a942c7
Removes another fixed bug
nastasha-solomon Apr 29, 2025
fbd5f0c
Fix
nastasha-solomon Apr 29, 2025
6a5c2d0
Merge branch 'main' into rn-9.0.1
nastasha-solomon Apr 29, 2025
27fc872
Adds 218697
nastasha-solomon Apr 30, 2025
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18 changes: 14 additions & 4 deletions release-notes/elastic-security/index.md
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Expand Up @@ -4,22 +4,32 @@ mapped_pages:
- https://www.elastic.co/guide/en/security/current/release-notes.html
- https://www.elastic.co/guide/en/security/current/whats-new.html
---
# {{elastic-sec}} release notes [elastic-security-X.X.X-release-notes]
# {{elastic-sec}} release notes

Review the changes, fixes, and more in each version of {{elastic-sec}}.

To check for security updates, go to [Security announcements for the Elastic stack](https://discuss.elastic.co/c/announcements/security-announcements/31).

% Release notes include only features, enhancements, and fixes. Add breaking changes, deprecations, and known issues to the applicable release notes sections.

% ## version.next [elastic-security-next-release-notes]
% ## version.next [elastic-security-X.X.X-notes]

% ### Features and enhancements [elastic-security-next-features-enhancements]
% ### Features and enhancements [elastic-security-X.X.X-features-enhancements]
% *

% ### Fixes [elastic-security-next-fixes]
% ### Fixes [elastic-security-X.X.X-fixes]
% *

## 9.0.1 [elastic-security-9.0.1-release-notes]

### Features and enhancements [elastic-security-9.0.1-features-enhancements]
There are no new features or enhancements.

### Fixes [elastic-security-9.0.1-fixes]
* Removes the technical preview badge from alert suppression fields for event correlation rules
* Fixes a bug that caused installed prebuilt detection rules to upgrade to their latest available versions when you installed a new {{elastic-defend}} integration or {{agent}} policy [#217959]({{kib-pull}}217959)
* Fixes a bug that prevented you form scrolling in modals ({kibana-pull}218697[#218697]).

## 9.0.0 [elastic-security-900-release-notes]

::::{NOTE}
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20 changes: 1 addition & 19 deletions release-notes/elastic-security/known-issues.md
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Expand Up @@ -17,22 +17,4 @@ Known issues are significant defects or limitations that may impact your impleme

:::

:::{dropdown} Installing an {{elastic-defend}} integration or a new agent policy upgrades installed prebuilt rules, reverting user customizations and overwriting user-added actions and exceptions

**{{stack}} versions: 9.0.0**

On April 10, 2025, it was discovered that when you install a new {{elastic-defend}} integration or agent policy, the installed prebuilt detection rules upgrade to their latest versions (if any new versions are available). The upgraded rules lose any user-added rule actions, exceptions, and customizations.

**Workaround**

To resolve this issue, before you add an {{elastic-defend}} integration to a policy in {{fleet}}, apply any pending prebuilt rule updates. This will prevent rule actions, exceptions, and customizations from being overwritten.

:::

:::{dropdown} The technical preview badge incorrectly displays on the alert suppression fields for event correlation rules

**{{stack}} versions: 9.0.0**

On April 8, 2025, it was discovered that alert suppression for event correlation rules is incorrectly shown as being in technical preview when you create a new rule. For more information, check [#1021](https://github.com/elastic/docs-content/issues/1021).

:::
There are no known issues.
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