diff --git a/doc/APIchanges b/doc/APIchanges
index 77b9740891..4e94132cf0 100644
--- a/doc/APIchanges
+++ b/doc/APIchanges
@@ -2,6 +2,9 @@ The last version increases of all libraries were on 2023-02-09
 
 API changes, most recent first:
 
+2024-02-16 - xxxxxxxxxx - lavu 58.39.100 - pixfmt.h
+  Add AV_VIDEO_MAX_PLANES
+
 2024-02-13 - xxxxxxxxxx - lavf 60.21.100 - avformat.h
   Add AVStreamGroup.disposition.
 
diff --git a/libavutil/pixfmt.h b/libavutil/pixfmt.h
index 9c87571f49..3ffba7c0d3 100644
--- a/libavutil/pixfmt.h
+++ b/libavutil/pixfmt.h
@@ -32,6 +32,13 @@
 #define AVPALETTE_SIZE 1024
 #define AVPALETTE_COUNT 256
 
+/**
+ * Maximum number of planes in any pixel format.
+ * This should be used when a maximum is needed, but code should not
+ * be written to require a maximum for no good reason.
+ */
+#define AV_VIDEO_MAX_PLANES 4
+
 /**
  * Pixel format.
  *
diff --git a/libavutil/version.h b/libavutil/version.h
index cebf4a0acd..9f45af93df 100644
--- a/libavutil/version.h
+++ b/libavutil/version.h
@@ -79,7 +79,7 @@
  */
 
 #define LIBAVUTIL_VERSION_MAJOR  58
-#define LIBAVUTIL_VERSION_MINOR  38
+#define LIBAVUTIL_VERSION_MINOR  39
 #define LIBAVUTIL_VERSION_MICRO 100
 
 #define LIBAVUTIL_VERSION_INT   AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \