Security 8.19.11 release notes #7128

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Merged

natasha-moore-elastic merged 3 commits into 8.19 from rn-8.19.11

Feb 2, 2026

docs/release-notes.asciidoc

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@@ Expand Up / @@ -3,6 +3,7 @@ @@
     This section summarizes the changes in each release.
+    * <<release-notes-8.19.11, {elastic-sec} version 8.19.11>>
     * <<release-notes-8.19.10, {elastic-sec} version 8.19.10>>
     * <<release-notes-8.19.9, {elastic-sec} version 8.19.9>>
     * <<release-notes-8.19.8, {elastic-sec} version 8.19.8>>
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docs/release-notes/8.19.asciidoc

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     [[release-notes-header-8.19.0]]
     == 8.19
+    [discrete]
+    [[release-notes-8.19.11]]
+    === 8.19.11
+    [discrete]
+    [[enhancements-8.19.11]]
+    ==== Enhancements
+    * Further reduces {elastic-defend} behavioral protection CPU usage for trusted applications.
+    [discrete]
+    [[bug-fixes-8.19.11]]
+    ==== Fixes
+    * Improves the stability of the **Add Elastic rules** page on deployments with low RAM configurations ({kibana-pull}248259[#248259]).
+    * Fixes an issue where {elastic-defend} on Windows could log a warning about "Quarantine directory failed validation due to ACL or file attribute change" for empty removable media drives such as optical drives.
     [discrete]
     [[release-notes-8.19.10]]
     === 8.19.10
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