Add Fleet and Agent release notes 8.18.2

Author: alexandra5000

docs/en/ingest-management/release-notes/release-notes-8.18.asciidoc

@@ -21,6 +21,30 @@ Also see:
 * {kibana-ref}/release-notes.html[{kib} release notes]
 * {beats-ref}/release-notes.html[{beats} release notes]
 
+// begin 8.18.2 relnotes
+
+[[release-notes-8.18.2]]
+==  8.18.2
+
+Review important information about the  8.18.2 release.
+
+[discrete]
+[[security-updates-8.18.2]]
+=== Security updates
+
+{agent}::
+* Update Go version to v1.24.3 {elastic-agent-pull}https://github.com/elastic/elastic-agent/pull/8109[#https://github.com/elastic/elastic-agent/pull/8109]
+
+
+[discrete]
+[[enhancements-8.18.2]]
+=== Enhancements
+
+{fleet}::
+* Update Go version to v1.24.3 {fleet-server-pull}https://github.com/elastic/fleet-server/pull/4891[#https://github.com/elastic/fleet-server/pull/4891] 
+
+// end 8.18.2 relnotes
+
 // begin 8.18.0 relnotes
 
 [[release-notes-8.18.0]]