diff --git a/NOTICE b/NOTICE
index 0e7339ef..16758568 100644
--- a/NOTICE
+++ b/NOTICE
@@ -19,6 +19,8 @@ Changes:
   address from SAT, not from LAT, the logical file numbers.
 - src/kernal/iec/tksa.s (2026-10-15): TKSA sends the secondary address it is given, without
   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.
 - NOTICE: this file.
 
 The licence terms are unchanged; see LICENSE, COPYING, and COPYING.LESSER.