diff --git a/doc/APIchanges b/doc/APIchanges
index 91f89aab94a6b85bf2cab7abc9ded8017007b28e..59356c5f0b22920bc29247bab18a627799dbf5a4 100644
--- a/doc/APIchanges
+++ b/doc/APIchanges
@@ -12,6 +12,10 @@ libavutil:   2009-03-08
 
 API changes, most recent first:
 
+2010-03-13 - r22501 - lavu 50.12.0 - error.h
+  Move error code definitions from libavcodec/avcodec.h to
+  the new public header libavutil/error.h.
+
 2010-03-07 - r22291 - lavc 52.56.0 - avfft.h
   Add public FFT interface.