diff --git a/docs/release-notes.asciidoc b/docs/release-notes.asciidoc
index ff0f54a21f..86d913d599 100644
--- a/docs/release-notes.asciidoc
+++ b/docs/release-notes.asciidoc
@@ -7,6 +7,7 @@ This section summarizes the changes in each release.
 * <<release-notes-8.18.2, {elastic-sec} version 8.18.2>>
 * <<release-notes-8.18.1, {elastic-sec} version 8.18.1>>
 * <<release-notes-8.18.0, {elastic-sec} version 8.18.0>>
+* <<release-notes-8.17.9, {elastic-sec} version 8.17.9>>
 * <<release-notes-8.17.8, {elastic-sec} version 8.17.8>>
 * <<release-notes-8.17.7, {elastic-sec} version 8.17.7>>
 * <<release-notes-8.17.6, {elastic-sec} version 8.17.6>>
diff --git a/docs/release-notes/8.17.asciidoc b/docs/release-notes/8.17.asciidoc
index 72e2a780eb..e7e5289177 100644
--- a/docs/release-notes/8.17.asciidoc
+++ b/docs/release-notes/8.17.asciidoc
@@ -1,6 +1,21 @@
 [[release-notes-header-8.17.0]]
 == 8.17
 
+[discrete]
+[[release-notes-8.17.9]]
+=== 8.17.9
+
+[discrete]
+[[enhancements-8.17.9]]
+==== Enhancements
+* Shortens the time it takes to recover from a `DEGRADED` status caused by {elastic-agent} communication issues.
+
+[discrete]
+[[bug-fixes-8.17.9]]
+==== Fixes
+* Fixes an issue in {elastic-defend} that may result in bugchecks (BSODs) on Windows systems with a very high volume of network connections. This issue has only been observed on Windows Server.
+* Fixes a bug where Linux endpoint network events would fail to load if IPv6 is not supported by the system.
+
 [discrete]
 [[release-notes-8.17.8]]
 === 8.17.8