diff --git a/doc/APIchanges b/doc/APIchanges
index 2587090f46..b90502c9c0 100644
--- a/doc/APIchanges
+++ b/doc/APIchanges
@@ -13,6 +13,10 @@ libavutil:   2009-03-08
 
 API changes, most recent first:
 
+2010-11-04 - r25700 - lavfi 1.57.0 - AVFilterInOut
+  Rename field AVFilterInOut.filter to AVFilterInOut.filter_ctx.
+  This change breaks libavfilter API.
+
 2010-11-04 - r25674 - lavfi 1.56.0 - avfilter_graph_free()
   Rename avfilter_graph_destroy() to avfilter_graph_free().
   This change breaks libavfilter API/ABI.
diff --git a/libavfilter/avfilter.h b/libavfilter/avfilter.h
index 7cda6fc06d..b12b7c7d81 100644
--- a/libavfilter/avfilter.h
+++ b/libavfilter/avfilter.h
@@ -25,7 +25,7 @@
 #include "libavutil/avutil.h"
 
 #define LIBAVFILTER_VERSION_MAJOR  1
-#define LIBAVFILTER_VERSION_MINOR 56
+#define LIBAVFILTER_VERSION_MINOR 57
 #define LIBAVFILTER_VERSION_MICRO  0
 
 #define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \