diff --git a/doc/APIchanges b/doc/APIchanges
index 9238af6396a518f7d06ce98a5daafe44df016f72..f3df2767d40a47613b0c9d3e9d2a3a1d81abfaa1 100644
--- a/doc/APIchanges
+++ b/doc/APIchanges
@@ -12,6 +12,9 @@ libavutil:   2009-03-08
 
 API changes, most recent first:
 
+2009-12-12 - r20808 - lavu 50.6.0 - av_bmg_next()
+  Introduce the av_bmg_next() function.
+
 2009-12-05 - r20734 - lavfi 1.12.0 - avfilter_draw_slice()
   Add a slice_dir parameter to avfilter_draw_slice().