diff --git a/doc/APIchanges b/doc/APIchanges
index e8f32b5c42..305bbef3c3 100644
--- a/doc/APIchanges
+++ b/doc/APIchanges
@@ -13,6 +13,10 @@ libavutil:   2009-03-08
 
 API changes, most recent first:
 
+2010-09-04 - r25040 - lavu 50.25.0 - AV_CPU_FLAG_*
+  Deprecate the FF_MM_* flags defined in libavcodec/avcodec.h in favor
+  of the AV_CPU_FLAG_* flags defined in libavutil/cpu.h.
+
 2010-08-26 - r24936 - lavc 52.87.0 - avcodec_get_channel_layout()
   Add avcodec_get_channel_layout() in audioconvert.h.