diff --git a/libguac/include/protocol.h b/libguac/include/protocol.h
index 70063f29..28608f19 100644
--- a/libguac/include/protocol.h
+++ b/libguac/include/protocol.h
@@ -378,6 +378,24 @@ int guac_protocol_send_sync(guac_socket* socket, guac_timestamp timestamp);
 
 /* DRAWING INSTRUCTIONS */
 
+/**
+ * Sends an arc instruction over the given guac_socket connection.
+ *
+ * If an error occurs sending the instruction, a non-zero value is
+ * returned, and guac_error is set appropriately.
+ *
+ * @param socket The guac_socket connection to use.
+ * @param layer The destination layer.
+ * @param x The X coordinate of the center of the circle containing the arc.
+ * @param y The Y coordinate of the center of the circle containing the arc. 
+ * @param radius The radius of the circle containing the arc.
+ * @param startAngle The starting angle, in radians.
+ * @param endAngle The ending angle, in radians.
+ * @return Zero on success, non-zero on error.
+ */
+int guac_protocol_send_arc(guac_socket* socket, const guac_layer* layer,
+        int x, int y, int radius, double startAngle, double endAngle);
+
 /**
  * Sends a cfill instruction over the given guac_socket connection.
  *
@@ -409,6 +427,18 @@ int guac_protocol_send_cfill(guac_socket* socket,
  */
 int guac_protocol_send_clip(guac_socket* socket, const guac_layer* layer);
 
+/**
+ * Sends a close instruction over the given guac_socket connection.
+ *
+ * If an error occurs sending the instruction, a non-zero value is
+ * returned, and guac_error is set appropriately.
+ *
+ * @param socket The guac_socket connection to use.
+ * @param layer The destination layer.
+ * @return Zero on success, non-zero on error.
+ */
+int guac_protocol_send_close(guac_socket* socket, const guac_layer* layer);
+
 /**
  * Sends a copy instruction over the given guac_socket connection.
  *
@@ -475,6 +505,37 @@ int guac_protocol_send_cstroke(guac_socket* socket,
 int guac_protocol_send_cursor(guac_socket* socket, int x, int y,
         const guac_layer* srcl, int srcx, int srcy, int w, int h);
 
+/**
+ * Sends a curve instruction over the given guac_socket connection.
+ *
+ * If an error occurs sending the instruction, a non-zero value is
+ * returned, and guac_error is set appropriately.
+ *
+ * @param socket The guac_socket connection to use.
+ * @param layer The destination layer.
+ * @param cp1x The X coordinate of the first control point.
+ * @param cp1y The Y coordinate of the first control point.
+ * @param cp2x The X coordinate of the second control point.
+ * @param cp2y The Y coordinate of the second control point.
+ * @param x The X coordinate of the endpoint of the curve.
+ * @param y The Y coordinate of the endpoint of the curve.
+ * @return Zero on success, non-zero on error.
+ */
+int guac_protocol_send_curve(guac_socket* socket, const guac_layer* layer,
+        int cp1x, int cp1y, int cp2x, int cp2y, int x, int y);
+
+/**
+ * Sends an identity instruction over the given guac_socket connection.
+ *
+ * If an error occurs sending the instruction, a non-zero value is
+ * returned, and guac_error is set appropriately.
+ *
+ * @param socket The guac_socket connection to use.
+ * @param layer The destination layer.
+ * @return Zero on success, non-zero on error.
+ */
+int guac_protocol_send_identity(guac_socket* socket, const guac_layer* layer);
+
 /**
  * Sends an lfill instruction over the given guac_socket connection.
  *
@@ -491,6 +552,21 @@ int guac_protocol_send_lfill(guac_socket* socket,
         guac_composite_mode mode, const guac_layer* layer,
         const guac_layer* srcl);
 
+/**
+ * Sends a line instruction over the given guac_socket connection.
+ *
+ * If an error occurs sending the instruction, a non-zero value is
+ * returned, and guac_error is set appropriately.
+ *
+ * @param socket The guac_socket connection to use.
+ * @param layer The destination layer.
+ * @param x The X coordinate of the endpoint of the line.
+ * @param y The Y coordinate of the endpoint of the line.
+ * @return Zero on success, non-zero on error.
+ */
+int guac_protocol_send_line(guac_socket* socket, const guac_layer* layer,
+        int x, int y);
+
 /**
  * Sends an lstroke instruction over the given guac_socket connection.
  *
@@ -511,25 +587,6 @@ int guac_protocol_send_lstroke(guac_socket* socket,
         guac_line_cap_style cap, guac_line_join_style join, int thickness,
         const guac_layer* srcl);
 
-/**
- * Sends a path instruction over the given guac_socket connection.
- *
- * If an error occurs sending the instruction, a non-zero value is
- * returned, and guac_error is set appropriately.
- *
- * @param socket The guac_socket connection to use.
- * @param layer The destination layer.
- * @param x The X coordinate of the point to add to the path.
- * @param y The Y coordinate of the point to add to the path.
- * @param cp1x The X coordinate of the first control point.
- * @param cp1y The Y coordinate of the first control point.
- * @param cp2x The X coordinate of the second control point.
- * @param cp2y The Y coordinate of the second control point.
- * @return Zero on success, non-zero on error.
- */
-int guac_protocol_send_path(guac_socket* socket, const guac_layer* layer,
-        int x, int y, int cp1x, int cp1y, int cp2x, int cp2y);
-
 /**
  * Sends a png instruction over the given guac_socket connection. The PNG image
  * data given will be automatically base64-encoded for transmission.
@@ -601,6 +658,21 @@ int guac_protocol_send_rect(guac_socket* socket, const guac_layer* layer,
  */
 int guac_protocol_send_reset(guac_socket* socket, const guac_layer* layer);
 
+/**
+ * Sends a start instruction over the given guac_socket connection.
+ *
+ * If an error occurs sending the instruction, a non-zero value is
+ * returned, and guac_error is set appropriately.
+ *
+ * @param socket The guac_socket connection to use.
+ * @param layer The destination layer.
+ * @param x The X coordinate of the first point of the subpath.
+ * @param y The Y coordinate of the first point of the subpath.
+ * @return Zero on success, non-zero on error.
+ */
+int guac_protocol_send_start(guac_socket* socket, const guac_layer* layer,
+        int x, int y);
+
 /**
  * Sends a transfer instruction over the given guac_socket connection.
  *
diff --git a/libguac/src/protocol.c b/libguac/src/protocol.c
index 59f8cf7e..86dd40d7 100644
--- a/libguac/src/protocol.c
+++ b/libguac/src/protocol.c
@@ -483,6 +483,27 @@ int guac_protocol_send_args(guac_socket* socket, const char** args) {
 }
 
 
+int guac_protocol_send_arc(guac_socket* socket, const guac_layer* layer,
+        int x, int y, int radius, double startAngle, double endAngle) {
+
+    return
+           guac_socket_write_string(socket, "3.arc,")
+        || __guac_socket_write_length_int(socket, layer->index)
+        || guac_socket_write_string(socket, ",")
+        || __guac_socket_write_length_int(socket, x)
+        || guac_socket_write_string(socket, ",")
+        || __guac_socket_write_length_int(socket, y)
+        || guac_socket_write_string(socket, ",")
+        || __guac_socket_write_length_int(socket, radius)
+        || guac_socket_write_string(socket, ",")
+        || __guac_socket_write_length_double(socket, startAngle)
+        || guac_socket_write_string(socket, ",")
+        || __guac_socket_write_length_double(socket, endAngle)
+        || guac_socket_write_string(socket, ";");
+
+}
+
+
 int guac_protocol_send_cfill(guac_socket* socket,
         guac_composite_mode mode, const guac_layer* layer,
         int r, int g, int b, int a) {
@@ -505,6 +526,16 @@ int guac_protocol_send_cfill(guac_socket* socket,
 }
 
 
+int guac_protocol_send_close(guac_socket* socket, const guac_layer* layer) {
+
+    return
+           guac_socket_write_string(socket, "5.close,")
+        || __guac_socket_write_length_int(socket, layer->index)
+        || guac_socket_write_string(socket, ";");
+
+}
+
+
 int guac_protocol_send_connect(guac_socket* socket, const char** args) {
 
     int i;
@@ -625,6 +656,29 @@ int guac_protocol_send_cursor(guac_socket* socket, int x, int y,
 }
 
 
+int guac_protocol_send_curve(guac_socket* socket, const guac_layer* layer,
+        int cp1x, int cp1y, int cp2x, int cp2y, int x, int y) {
+
+    return
+           guac_socket_write_string(socket, "5.curve,")
+        || __guac_socket_write_length_int(socket, layer->index)
+        || guac_socket_write_string(socket, ",")
+        || __guac_socket_write_length_int(socket, cp1x)
+        || guac_socket_write_string(socket, ",")
+        || __guac_socket_write_length_int(socket, cp1y)
+        || guac_socket_write_string(socket, ",")
+        || __guac_socket_write_length_int(socket, cp2x)
+        || guac_socket_write_string(socket, ",")
+        || __guac_socket_write_length_int(socket, cp2y)
+        || guac_socket_write_string(socket, ",")
+        || __guac_socket_write_length_int(socket, x)
+        || guac_socket_write_string(socket, ",")
+        || __guac_socket_write_length_int(socket, y)
+        || guac_socket_write_string(socket, ";");
+
+}
+
+
 int guac_protocol_send_disconnect(guac_socket* socket) {
     return guac_socket_write_string(socket, "10.disconnect;");
 }
@@ -673,6 +727,16 @@ int guac_protocol_send_error(guac_socket* socket, const char* error) {
 }
 
 
+int guac_protocol_send_identity(guac_socket* socket, const guac_layer* layer) {
+
+    return
+           guac_socket_write_string(socket, "8.identity,")
+        || __guac_socket_write_length_int(socket, layer->index)
+        || guac_socket_write_string(socket, ";");
+
+}
+
+
 int guac_protocol_send_lfill(guac_socket* socket,
         guac_composite_mode mode, const guac_layer* layer,
         const guac_layer* srcl) {
@@ -689,6 +753,21 @@ int guac_protocol_send_lfill(guac_socket* socket,
 }
 
 
+int guac_protocol_send_line(guac_socket* socket, const guac_layer* layer,
+        int x, int y) {
+
+    return
+           guac_socket_write_string(socket, "4.line,")
+        || __guac_socket_write_length_int(socket, layer->index)
+        || guac_socket_write_string(socket, ",")
+        || __guac_socket_write_length_int(socket, x)
+        || guac_socket_write_string(socket, ",")
+        || __guac_socket_write_length_int(socket, y)
+        || guac_socket_write_string(socket, ";");
+
+}
+
+
 int guac_protocol_send_lstroke(guac_socket* socket,
         guac_composite_mode mode, const guac_layer* layer,
         guac_line_cap_style cap, guac_line_join_style join, int thickness,
@@ -741,29 +820,6 @@ int guac_protocol_send_name(guac_socket* socket, const char* name) {
 }
 
 
-int guac_protocol_send_path(guac_socket* socket, const guac_layer* layer,
-        int x, int y, int cp1x, int cp1y, int cp2x, int cp2y) {
-
-    return
-           guac_socket_write_string(socket, "4.path,")
-        || __guac_socket_write_length_int(socket, layer->index)
-        || guac_socket_write_string(socket, ",")
-        || __guac_socket_write_length_int(socket, x)
-        || guac_socket_write_string(socket, ",")
-        || __guac_socket_write_length_int(socket, y)
-        || guac_socket_write_string(socket, ",")
-        || __guac_socket_write_length_int(socket, cp1x)
-        || guac_socket_write_string(socket, ",")
-        || __guac_socket_write_length_int(socket, cp1y)
-        || guac_socket_write_string(socket, ",")
-        || __guac_socket_write_length_int(socket, cp2x)
-        || guac_socket_write_string(socket, ",")
-        || __guac_socket_write_length_int(socket, cp2y)
-        || guac_socket_write_string(socket, ";");
-
-}
-
-
 int guac_protocol_send_png(guac_socket* socket, guac_composite_mode mode,
         const guac_layer* layer, int x, int y, cairo_surface_t* surface) {
 
@@ -868,7 +924,6 @@ int guac_protocol_send_shade(guac_socket* socket, const guac_layer* layer,
 }
 
 
-
 int guac_protocol_send_size(guac_socket* socket, const guac_layer* layer,
         int w, int h) {
 
@@ -884,6 +939,21 @@ int guac_protocol_send_size(guac_socket* socket, const guac_layer* layer,
 }
 
 
+int guac_protocol_send_start(guac_socket* socket, const guac_layer* layer,
+        int x, int y) {
+
+    return
+           guac_socket_write_string(socket, "5.start,")
+        || __guac_socket_write_length_int(socket, layer->index)
+        || guac_socket_write_string(socket, ",")
+        || __guac_socket_write_length_int(socket, x)
+        || guac_socket_write_string(socket, ",")
+        || __guac_socket_write_length_int(socket, y)
+        || guac_socket_write_string(socket, ";");
+
+}
+
+
 int guac_protocol_send_sync(guac_socket* socket, guac_timestamp timestamp) {
 
     return