diff --git a/NOTICE b/NOTICE
index 16758568..3dc2fdc0 100644
--- a/NOTICE
+++ b/NOTICE
@@ -21,6 +21,8 @@ Changes:
   ORing $90 into it (upstream issue #116).
 - src/kernal/iec/iec_tx_byte.s (2026-10-15): a data byte that no listener holds DATA for
   sets ST to $80 (device not present) and returns, instead of waiting forever.
+- src/kernal/iec/close_iec.s (2026-10-15): a CLOSE that finds no device sets ST to $80
+  (device not present), and still frees the file number.
 - NOTICE: this file.
 
 The licence terms are unchanged; see LICENSE, COPYING, and COPYING.LESSER.