diff --git a/NEWS b/NEWS
index dab0ddecfc..550fcb0eb1 100644
--- a/NEWS
+++ b/NEWS
@@ -299,6 +299,11 @@ CHANGES WITH 261 in spe:
           GPT header (i.e. is partitioned) but the block device has partition
           table processing turned off.
 
+        * Persistent network interface naming has been extended to auxiliary
+          sub-function (SF) network devices (such as mlx5_core SFs), using an
+          "S<sfnum>" suffix appended to the parent PCI function's name (e.g.
+          "enp193s0f0S88").
+
         Changes in systemd-boot, systemd-stub, bootctl, ukify:
 
         * systemd-stub will now maintain a "boot secret" and pass it to the OS