From 6182505828c30f79b4fe5a99931a197f89bba04e Mon Sep 17 00:00:00 2001
From: Michael Klishin <michael@clojurewerkz.org>
Date: Thu, 11 Nov 2021 13:25:45 +0300
Subject: [PATCH] Update 3.9.9 release notes

---
 release-notes/3.9.9.md | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/release-notes/3.9.9.md b/release-notes/3.9.9.md
index 0397b361a1..7b9c74d76e 100644
--- a/release-notes/3.9.9.md
+++ b/release-notes/3.9.9.md
@@ -43,6 +43,12 @@ Contributors are encouraged to update them together with their changes. This hel
 
 ### Prometheus Plugin
 
+#### Enhancements
+
+ * Metric rendering efficiency improvements (mostly latency)
+
+   GitHub issue: [#3587](https://github.com/rabbitmq/rabbitmq-server/pull/3587)
+
 #### Bug Fixes
 
  * TLS-enabled Prometheus endpoint listener port was not correctly stored internally