Index: website/content/en/releases/13.1R/relnotes.adoc
===================================================================
--- website/content/en/releases/13.1R/relnotes.adoc
+++ website/content/en/releases/13.1R/relnotes.adoc
@@ -53,6 +53,13 @@
 Upgrading FreeBSD should only be attempted after backing up _all_ data and configuration files.
 ====
 
+[IMPORTANT]
+====
+After upgrading, OpenSSH 8.8p1 sshd will not accept new connections until it is restarted.
+The standard upgrade process specifies a reboot after installing the upgraded userland.
+If the reboot is not performed, execute `service sshd restart`.
+====
+
 ////
 XXX: gjb will fill this in just before the release is final
 [[security-errata]]