diff -Naur gegl-ocaml-0.01/COPYING.md gegl-ocaml-0.02/COPYING.md
--- gegl-ocaml-0.01/COPYING.md	1970-01-01 01:00:00.000000000 +0100
+++ gegl-ocaml-0.02/COPYING.md	2025-12-23 07:08:53.639993510 +0100
@@ -0,0 +1,2 @@
+To the extent permitted by law, you can use this package following
+the conditions explained in the file: 'License.txt'
diff -Naur gegl-ocaml-0.01/examples/Makefile gegl-ocaml-0.02/examples/Makefile
--- gegl-ocaml-0.01/examples/Makefile	2025-04-02 14:36:37.000000000 +0200
+++ gegl-ocaml-0.02/examples/Makefile	2025-12-23 09:02:39.056780008 +0100
@@ -1,5 +1,27 @@
-test:
+test: test1 test2 test3 test4 test5 test6 test7 test8 test9
+test1:
 	ocaml -I ../src gegl.cma test_01.ml
+test2:
+	ocaml -I ../src gegl.cma test_02.ml
+test3:
+	ocaml -I ../src gegl.cma test_03.ml
+test4:
+	ocaml -I ../src gegl.cma test_04.ml
+test5:
+	ocaml -I ../src gegl.cma test_05.ml
+test6:
+	ocaml -I ../src gegl.cma test_06.ml
+test7:
+	ocaml -I ../src gegl.cma test_07.ml
+test8:
+	ocaml -I ../src gegl.cma test_08.ml
+test9:
+	ocaml -I ../src gegl.cma test_09.ml
+test4: input.png
+test5: input.png
+input.png: input.jpg
+	convert $< $@
 clean:
 	$(RM) *.cm[iox] *.opt *.o
 	$(RM) output.png output6.png output.jpg filtered.jpg
+	$(RM) input.png blured.png croped.png
diff -Naur gegl-ocaml-0.01/examples/test_09.ml gegl-ocaml-0.02/examples/test_09.ml
--- gegl-ocaml-0.01/examples/test_09.ml	1970-01-01 01:00:00.000000000 +0100
+++ gegl-ocaml-0.02/examples/test_09.ml	2025-12-23 07:59:07.368899249 +0100
@@ -0,0 +1,7 @@
+let () =
+  (*
+  Gegl.gegl_init ();
+  *)
+  let major, minor, micro = Gegl.gegl_get_version () in
+  Printf.printf " version: (%d, %d, %d)\n" major minor micro;
+;;
diff -Naur gegl-ocaml-0.01/src/gegl.ml gegl-ocaml-0.02/src/gegl.ml
--- gegl-ocaml-0.01/src/gegl.ml	2025-04-02 14:36:37.000000000 +0200
+++ gegl-ocaml-0.02/src/gegl.ml	2025-12-23 08:52:37.171798834 +0100
@@ -12,6 +12,9 @@
 external gegl_exit : unit -> unit
   = "caml_gegl_exit"
 
+external gegl_get_version : unit -> (int * int * int)
+  = "caml_gegl_get_version"
+
 type gegl_rectangle
 external gegl_rectangle : (int * int * int * int) -> gegl_rectangle
   = "caml_alloc_gegl_rectangle_new"
@@ -100,8 +103,7 @@
   = "caml_gegl_operation_list_properties"
 
 external gegl_node_crop : node -> float * float * float * float -> bool -> node
-  = "caml_gegl_node_crop_bytecode"
-    "caml_gegl_node_crop"
+  = "caml_gegl_node_crop"
 
 external gegl_node_gaussian_blur : node -> float -> float -> node
   = "caml_gegl_node_gaussian_blur"
@@ -130,6 +132,13 @@
 external gegl_node_brightness_contrast : node -> brightness:float -> contrast:float -> node
   = "caml_gegl_node_brightness_contrast"
 
+external gegl_node_color_rotate : node ->
+        src_from:float -> src_to:float ->
+        dest_from:float -> dest_to:float ->
+        hue:float -> saturation:float -> node
+  = "caml_gegl_node_color_rotate_bytecode"
+    "caml_gegl_node_color_rotate"
+
 external gegl_node_negative_darkroom : node -> node
   = "caml_gegl_node_negative_darkroom"
 
diff -Naur gegl-ocaml-0.01/src/gegl.mli gegl-ocaml-0.02/src/gegl.mli
--- gegl-ocaml-0.01/src/gegl.mli	2025-04-02 14:36:37.000000000 +0200
+++ gegl-ocaml-0.02/src/gegl.mli	2025-12-23 08:52:20.050799370 +0100
@@ -8,6 +8,10 @@
 val gegl_init : unit -> unit
 val gegl_exit : unit -> unit
 
+(** {3 Version} *)
+
+val gegl_get_version : unit -> (int * int * int)
+
 (** {3 Gegl-kinds} *)
 
 type gegl_rectangle
@@ -88,6 +92,11 @@
 
 val gegl_node_brightness_contrast : node -> brightness:float -> contrast:float -> node
 
+val gegl_node_color_rotate : node ->
+        src_from:float -> src_to:float ->
+        dest_from:float -> dest_to:float ->
+        hue:float -> saturation:float -> node
+
 val gegl_node_negative_darkroom : node -> node
 
 val gegl_node_normal_map : node -> node
diff -Naur gegl-ocaml-0.01/src/gegl_stubs.c gegl-ocaml-0.02/src/gegl_stubs.c
--- gegl-ocaml-0.01/src/gegl_stubs.c	2025-04-02 14:36:37.000000000 +0200
+++ gegl-ocaml-0.02/src/gegl_stubs.c	2025-12-23 08:55:29.371793444 +0100
@@ -114,6 +114,27 @@
 }
 
 CAMLprim value
+caml_gegl_get_version(value u)
+{
+  CAMLparam1(u);
+  CAMLlocal1(v);
+
+  int major;
+  int minor;
+  int micro;
+
+  gegl_get_version(&major, &minor, &micro);
+
+  v = caml_alloc(3, 0);
+
+  Store_field(v, 0, Val_int(major));
+  Store_field(v, 1, Val_int(minor));
+  Store_field(v, 2, Val_int(micro));
+
+  CAMLreturn(v);
+}
+
+CAMLprim value
 caml_alloc_gegl_rectangle_new(value r)
 {
   // Alloc Gegl rectangle
@@ -308,8 +329,13 @@
 }
 
 CAMLprim value
-caml_gegl_node_crop(value n, value x, value y, value w, value h, value b)
+caml_gegl_node_crop(value n, value xywh, value b)
 {
+  value x = Field(xywh, 0);
+  value y = Field(xywh, 1);
+  value w = Field(xywh, 2);
+  value h = Field(xywh, 3);
+
   GeglNode *node = Gegl_node_val(n);
   GeglNode *child = gegl_node_new_child(node,
     "operation", "gegl:crop",
@@ -324,13 +350,6 @@
 }
 
 CAMLprim value
-caml_gegl_node_crop_bytecode(value * argv, int argn)
-{
-  return caml_gegl_node_crop(
-    argv[0], argv[1], argv[2], argv[3], argv[4], argv[5]);
-}
-
-CAMLprim value
 caml_gegl_node_gaussian_blur(value n, value x, value y)
 {
   GeglNode *node = Gegl_node_val(n);
@@ -439,6 +458,33 @@
 }
 
 CAMLprim value
+caml_gegl_node_color_rotate(value n, value sf, value st, value df, value dt, value h, value s)
+{
+  GeglNode *node = Gegl_node_val(n);
+  GeglNode *child = gegl_node_new_child(node,
+    "operation", "gegl:color-rotate",
+
+    "src-from", Double_val(sf),
+    "src-to", Double_val(st),
+    "dest-from", Double_val(df),
+    "dest-to", Double_val(dt),
+
+    "hue", Double_val(h),
+    "saturation", Double_val(s),
+    NULL);
+
+  return Val_gegl_node(child);
+}
+
+CAMLprim value
+caml_gegl_node_color_rotate_bytecode(value * argv, int argn)
+{
+  return caml_gegl_node_color_rotate(
+    argv[0], argv[1], argv[2], argv[3], argv[4], argv[5], argv[6]);
+}
+
+
+CAMLprim value
 caml_gegl_node_negative_darkroom(value n)
 {
   GeglNode *node = Gegl_node_val(n);
diff -Naur gegl-ocaml-0.01/src/META gegl-ocaml-0.02/src/META
--- gegl-ocaml-0.01/src/META	2025-04-02 14:36:37.000000000 +0200
+++ gegl-ocaml-0.02/src/META	2025-12-23 08:58:44.942787331 +0100
@@ -1,6 +1,6 @@
 name = "gegl"
 description = "Interface for the Gegl library"
-version = "0.01"
+version = "0.02"
 license = "ISC License"
 archive(byte) = "gegl.cma"
 archive(native) = "gegl.cmxa"