1 files changed, 10 insertions, 0 deletions
diff --git a/UPDATING b/UPDATING
index e2fd7a5200a6..3c546d361b48 100644
--- a/UPDATING
+++ b/UPDATING
@@ -5,6 +5,16 @@ they are unavoidable.
 You should get into the habit of checking this file for changes each time
 you update your ports collection, before attempting any port upgrades.
 
+20251208:
+  AFFECTS: users of net-mgmt/unifi{9,10}
+  AUTHOR: otis@FreeBSD.org
+
+  Version 10 of UniFi controller has been introduced, conflicting with
+  version 9.
+
+  Users are strongly advised to make a fresh backup of UniFi controller
+  database from within the UI, prior to upgrade to unifi10.
+
 20251201:
   AFFECTS: users of lang/php83
   AUTHOR: bofh@FreeBSD.org