diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index f340e28c6712..645e353b0966 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,12 @@
+2025-09-10  Georg-Johann Lay  <avr@gjlay.de>
+
+	Backported from master:
+	2025-09-10  Georg-Johann Lay  <avr@gjlay.de>
+
+	PR target/81540
+	PR target/49857
+	* common/config/avr/avr-common.cc: Disable -ftree-switch-conversion.
+
 2025-08-20  Georg-Johann Lay  <avr@gjlay.de>
 
 	Backported from master:
diff --git a/gcc/DATESTAMP b/gcc/DATESTAMP
index 240fc076c6a7..cc3bc45669de 100644
--- a/gcc/DATESTAMP
+++ b/gcc/DATESTAMP
@@ -1 +1 @@
-20250910
+20250911