diff --git a/docs/static/releasenotes.asciidoc b/docs/static/releasenotes.asciidoc
index f4b4811ae1f..15a06649775 100644
--- a/docs/static/releasenotes.asciidoc
+++ b/docs/static/releasenotes.asciidoc
@@ -78,6 +78,10 @@ No user-facing changes in Logstash core.
 
 * update netty to 4.1.109 https://github.com/logstash-plugins/logstash-input-tcp/pull/220[#220]
 
+*Multiline Codec - 3.1.2*
+
+* Fix: a race condition in periodic runner that blocks clean up process and pipeline shutdown https://github.com/logstash-plugins/logstash-codec-multiline/pull/72[#72]
+
 
 [[logstash-8-13-2]]
 === Logstash 8.13.2 Release Notes