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Adds a Security known issue for serverless and 9.0.0 #1100

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Apr 11, 2025
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10 changes: 10 additions & 0 deletions release-notes/elastic-cloud-serverless/known-issues.md
Original file line number Diff line number Diff line change
Expand Up @@ -14,4 +14,14 @@ Known issues are significant defects or limitations that may impact your impleme
% **Workaround**
% Workaround description.

:::

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

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.

:::
12 changes: 12 additions & 0 deletions release-notes/elastic-security/known-issues.md
Original file line number Diff line number Diff line change
Expand Up @@ -17,6 +17,18 @@ 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**
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