diff --git a/website/content/en/releases/13.1R/relnotes.adoc b/website/content/en/releases/13.1R/relnotes.adoc
--- a/website/content/en/releases/13.1R/relnotes.adoc
+++ b/website/content/en/releases/13.1R/relnotes.adoc
@@ -53,6 +53,12 @@
 Upgrading FreeBSD should only be attempted after backing up _all_ data and configuration files.
 ====
 
+[IMPORTANT]
+====
+After upgrading, sshd (from OpenSSH 8.8p1) will not accept new connections until it is restarted.
+After installing the new userland, either reboot (as specified in the source update procedure), or execute `service sshd restart`.
+====
+
 ////
 XXX: gjb will fill this in just before the release is final
 [[security-errata]]