diff --git a/spine-cpp/spine-cpp-lite/spine-cpp-lite.cpp b/spine-cpp/spine-cpp-lite/spine-cpp-lite.cpp
index d306b8b1c..23f5c2196 100644
--- a/spine-cpp/spine-cpp-lite/spine-cpp-lite.cpp
+++ b/spine-cpp/spine-cpp-lite/spine-cpp-lite.cpp
@@ -4681,3 +4681,112 @@ void spine_texture_region_set_original_height(spine_texture_region textureRegion
 	TextureRegion *_region = (TextureRegion *) textureRegion;
 	_region->originalHeight = originalHeight;
 }
+
+spine_skeleton_bounds spine_skeleton_bounds_create() {
+	return (spine_skeleton_bounds) new (__FILE__, __LINE__) SkeletonBounds();
+}
+
+void spine_skeleton_bounds_dispose(spine_skeleton_bounds bounds) {
+	if (bounds == nullptr) return;
+	SkeletonBounds *_bounds = (SkeletonBounds *) bounds;
+	delete _bounds;
+}
+
+void spine_skeleton_bounds_update(spine_skeleton_bounds bounds, spine_skeleton skeleton, spine_bool updateAabb) {
+	if (bounds == nullptr) return;
+	if (skeleton == nullptr) return;
+
+	SkeletonBounds *_bounds = (SkeletonBounds *) bounds;
+	Skeleton *_skeleton = (Skeleton *) skeleton;
+	_bounds->update(*_skeleton, updateAabb != 0);
+}
+
+spine_bool spine_skeleton_bounds_aabb_contains_point(spine_skeleton_bounds bounds, float x, float y) {
+	if (bounds == nullptr) return false;
+	return ((SkeletonBounds *) bounds)->aabbcontainsPoint(x, y);
+}
+
+spine_bool spine_skeleton_bounds_aabb_intersects_segment(spine_skeleton_bounds bounds, float x1, float y1, float x2, float y2) {
+	if (bounds == nullptr) return false;
+	return ((SkeletonBounds *) bounds)->aabbintersectsSegment(x1, y1, x2, y2);
+}
+
+spine_bool spine_skeleton_bounds_aabb_intersects_skeleton(spine_skeleton_bounds bounds, spine_skeleton_bounds otherBounds) {
+	if (bounds == nullptr) return false;
+	if (otherBounds == nullptr) return false;
+	return ((SkeletonBounds *) bounds)->aabbIntersectsSkeleton(*((SkeletonBounds *) bounds));
+}
+
+spine_bool spine_skeleton_bounds_contains_point(spine_skeleton_bounds bounds, spine_polygon polygon, float x, float y) {
+	if (bounds == nullptr) return false;
+	if (polygon == nullptr) return false;
+	return ((SkeletonBounds *) bounds)->containsPoint((Polygon *) polygon, x, y);
+}
+
+spine_bounding_box_attachment spine_skeleton_bounds_contains_point_attachment(spine_skeleton_bounds bounds, float x, float y) {
+	if (bounds == nullptr) return nullptr;
+	return (spine_bounding_box_attachment) ((SkeletonBounds *) bounds)->containsPoint(x, y);
+}
+
+spine_bounding_box_attachment spine_skeleton_bounds_intersects_segment_attachment(spine_skeleton_bounds bounds, float x1, float y1, float x2, float y2) {
+	if (bounds == nullptr) return nullptr;
+	return (spine_bounding_box_attachment) ((SkeletonBounds *) bounds)->intersectsSegment(x1, y1, x2, y2);
+}
+
+spine_bool spine_skeleton_bounds_intersects_segment(spine_skeleton_bounds bounds, spine_polygon polygon, float x1, float y1, float x2, float y2) {
+	if (bounds == nullptr) return false;
+	if (polygon == nullptr) return false;
+	return ((SkeletonBounds *) bounds)->intersectsSegment((Polygon *) polygon, x1, y1, x2, y2);
+}
+
+spine_polygon spine_skeleton_bounds_get_polygon(spine_skeleton_bounds bounds, spine_bounding_box_attachment attachment) {
+	if (bounds == nullptr) return nullptr;
+	if (attachment == nullptr) return nullptr;
+	return (spine_polygon) ((SkeletonBounds *) bounds)->getPolygon((BoundingBoxAttachment *) attachment);
+}
+
+spine_bounding_box_attachment spine_skeleton_bounds_get_bounding_box(spine_skeleton_bounds bounds, spine_polygon polygon) {
+	if (bounds == nullptr) return nullptr;
+	if (polygon == nullptr) return nullptr;
+	return (spine_bounding_box_attachment) ((SkeletonBounds *) bounds)->getBoundingBox((Polygon *) polygon);
+}
+
+int32_t spine_skeleton_bounds_get_num_polygons(spine_skeleton_bounds bounds) {
+	if (bounds == nullptr) return 0;
+	return (int32_t) ((SkeletonBounds *) bounds)->getPolygons().size();
+}
+
+spine_polygon *spine_skeleton_bounds_get_polygons(spine_skeleton_bounds bounds) {
+	if (bounds == nullptr) return nullptr;
+	return (spine_polygon *) ((SkeletonBounds *) bounds)->getPolygons().buffer();
+}
+
+int32_t spine_skeleton_bounds_get_num_bounding_boxes(spine_skeleton_bounds bounds) {
+	if (bounds == nullptr) return 0;
+	return (int32_t) ((SkeletonBounds *) bounds)->getBoundingBoxes().size();
+}
+
+spine_bounding_box_attachment *spine_skeleton_bounds_get_bounding_boxes(spine_skeleton_bounds bounds) {
+	if (bounds == nullptr) return nullptr;
+	return (spine_bounding_box_attachment *) ((SkeletonBounds *) bounds)->getBoundingBoxes().buffer();
+}
+
+float spine_skeleton_bounds_get_width(spine_skeleton_bounds bounds) {
+	if (bounds == nullptr) return 0;
+	return ((SkeletonBounds *) bounds)->getWidth();
+}
+
+float spine_skeleton_bounds_get_height(spine_skeleton_bounds bounds) {
+	if (bounds == nullptr) return 0;
+	return ((SkeletonBounds *) bounds)->getHeight();
+}
+
+int32_t spine_polygon_get_num_vertices(spine_polygon polygon) {
+	if (polygon == nullptr) return 0;
+	return ((Polygon *) polygon)->_vertices.size();
+}
+
+float *spine_polygon_get_vertices(spine_polygon polygon) {
+	if (polygon == nullptr) return 0;
+	return ((Polygon *) polygon)->_vertices.buffer();
+}
diff --git a/spine-cpp/spine-cpp-lite/spine-cpp-lite.h b/spine-cpp/spine-cpp-lite/spine-cpp-lite.h
index 875b215b7..4e4d03127 100644
--- a/spine-cpp/spine-cpp-lite/spine-cpp-lite.h
+++ b/spine-cpp/spine-cpp-lite/spine-cpp-lite.h
@@ -104,6 +104,8 @@ SPINE_OPAQUE_TYPE(spine_vector)
 SPINE_OPAQUE_TYPE(spine_skeleton_drawable)
 SPINE_OPAQUE_TYPE(spine_skin_entry)
 SPINE_OPAQUE_TYPE(spine_skin_entries)
+SPINE_OPAQUE_TYPE(spine_skeleton_bounds)
+SPINE_OPAQUE_TYPE(spine_polygon)
 
 // @end: opaque_types
 
@@ -263,7 +265,7 @@ SPINE_CPP_LITE_EXPORT void spine_skeleton_data_set_width(spine_skeleton_data dat
 SPINE_CPP_LITE_EXPORT float spine_skeleton_data_get_height(spine_skeleton_data data);
 SPINE_CPP_LITE_EXPORT void spine_skeleton_data_set_height(spine_skeleton_data data, float height);
 SPINE_CPP_LITE_EXPORT const utf8 *spine_skeleton_data_get_version(spine_skeleton_data data);
-// OMITTED setVersion() 
+// OMITTED setVersion()
 // @ignore
 SPINE_CPP_LITE_EXPORT const utf8 *spine_skeleton_data_get_hash(spine_skeleton_data data);
 // OMITTED setHash()
@@ -1047,6 +1049,28 @@ SPINE_CPP_LITE_EXPORT void spine_texture_region_set_original_width(spine_texture
 SPINE_CPP_LITE_EXPORT int32_t spine_texture_region_get_original_height(spine_texture_region textureRegion);
 SPINE_CPP_LITE_EXPORT void spine_texture_region_set_original_height(spine_texture_region textureRegion, int32_t originalHeight);
 
+SPINE_CPP_LITE_EXPORT spine_skeleton_bounds spine_skeleton_bounds_create();
+SPINE_CPP_LITE_EXPORT void spine_skeleton_bounds_dispose(spine_skeleton_bounds bounds);
+SPINE_CPP_LITE_EXPORT void spine_skeleton_bounds_update(spine_skeleton_bounds bounds, spine_skeleton skeleton, spine_bool updateAabb);
+SPINE_CPP_LITE_EXPORT spine_bool spine_skeleton_bounds_aabb_contains_point(spine_skeleton_bounds bounds, float x, float y);
+SPINE_CPP_LITE_EXPORT spine_bool spine_skeleton_bounds_aabb_intersects_segment(spine_skeleton_bounds bounds, float x1, float y1, float x2, float y2);
+SPINE_CPP_LITE_EXPORT spine_bool spine_skeleton_bounds_aabb_intersects_skeleton(spine_skeleton_bounds bounds, spine_skeleton_bounds otherBounds);
+SPINE_CPP_LITE_EXPORT spine_bool spine_skeleton_bounds_contains_point(spine_skeleton_bounds bounds, spine_polygon polygon, float x, float y);
+SPINE_CPP_LITE_EXPORT spine_bounding_box_attachment spine_skeleton_bounds_contains_point_attachment(spine_skeleton_bounds bounds, float x, float y);
+SPINE_CPP_LITE_EXPORT spine_bounding_box_attachment spine_skeleton_bounds_intersects_segment_attachment(spine_skeleton_bounds bounds, float x1, float y1, float x2, float y2);
+SPINE_CPP_LITE_EXPORT spine_bool spine_skeleton_bounds_intersects_segment(spine_skeleton_bounds bounds, spine_polygon polygon, float x1, float y1, float x2, float y2);
+SPINE_CPP_LITE_EXPORT spine_polygon spine_skeleton_bounds_get_polygon(spine_skeleton_bounds bounds, spine_bounding_box_attachment attachment);
+SPINE_CPP_LITE_EXPORT spine_bounding_box_attachment spine_skeleton_bounds_get_bounding_box(spine_skeleton_bounds bounds, spine_polygon polygon);
+SPINE_CPP_LITE_EXPORT int32_t spine_skeleton_bounds_get_num_polygons(spine_skeleton_bounds bounds);
+SPINE_CPP_LITE_EXPORT spine_polygon *spine_skeleton_bounds_get_polygons(spine_skeleton_bounds bounds);
+SPINE_CPP_LITE_EXPORT int32_t spine_skeleton_bounds_get_num_bounding_boxes(spine_skeleton_bounds bounds);
+SPINE_CPP_LITE_EXPORT spine_bounding_box_attachment *spine_skeleton_bounds_get_bounding_boxes(spine_skeleton_bounds bounds);
+SPINE_CPP_LITE_EXPORT float spine_skeleton_bounds_get_width(spine_skeleton_bounds bounds);
+SPINE_CPP_LITE_EXPORT float spine_skeleton_bounds_get_height(spine_skeleton_bounds bounds);
+
+SPINE_CPP_LITE_EXPORT int32_t spine_polygon_get_num_vertices(spine_polygon polygon);
+SPINE_CPP_LITE_EXPORT float *spine_polygon_get_vertices(spine_polygon polygon);
+
 // @end: function_declarations
 
 #endif
diff --git a/spine-glfw/example/main.cpp b/spine-glfw/example/main.cpp
index 7210b98fd..cb1703b9c 100644
--- a/spine-glfw/example/main.cpp
+++ b/spine-glfw/example/main.cpp
@@ -39,8 +39,8 @@ int main() {
 	// Load the atlas and the skeleton data
 	GlTextureLoader textureLoader;
 	Atlas *atlas = new Atlas("data/spineboy-pma.atlas", &textureLoader);
-	SkeletonJson json(atlas);
-	SkeletonData *skeletonData = json.readSkeletonDataFile("data/spineboy-pro.skel");
+	SkeletonBinary binary(atlas);
+	SkeletonData *skeletonData = binary.readSkeletonDataFile("data/spineboy-pro.skel");
 
 	// Create a skeleton from the data, set the skeleton's position to the bottom center of
 	// the screen and scale it to make it smaller.
diff --git a/spine-ios/Sources/Spine/Spine.Generated.swift b/spine-ios/Sources/Spine/Spine.Generated.swift
index 30bffdc55..0eee4e2e7 100644
--- a/spine-ios/Sources/Spine/Spine.Generated.swift
+++ b/spine-ios/Sources/Spine/Spine.Generated.swift
@@ -1721,6 +1721,104 @@ public final class AnimationState: NSObject {
 
 }
 
+@objc(SpineSkeletonBounds)
+@objcMembers
+public final class SkeletonBounds: NSObject {
+
+    internal let wrappee: spine_skeleton_bounds
+    internal var disposed = false
+
+    internal init(_ wrappee: spine_skeleton_bounds) {
+        self.wrappee = wrappee
+        super.init()
+    }
+
+    public var polygons: [Polygon] {
+        let num = Int(spine_skeleton_bounds_get_num_polygons(wrappee))
+        let ptr = spine_skeleton_bounds_get_polygons(wrappee)
+        return (0..<num).compactMap {
+            ptr?[$0].flatMap { .init($0) }
+        }
+    }
+
+    public var boundingBoxes: [BoundingBoxAttachment] {
+        let num = Int(spine_skeleton_bounds_get_num_bounding_boxes(wrappee))
+        let ptr = spine_skeleton_bounds_get_bounding_boxes(wrappee)
+        return (0..<num).compactMap {
+            ptr?[$0].flatMap { .init($0) }
+        }
+    }
+
+    public var width: Float {
+        return spine_skeleton_bounds_get_width(wrappee)
+    }
+
+    public var height: Float {
+        return spine_skeleton_bounds_get_height(wrappee)
+    }
+
+    @discardableResult
+    public func create() -> SkeletonBounds {
+        return .init(spine_skeleton_bounds_create())
+    }
+
+    public func dispose() {
+        if disposed { return }
+        disposed = true
+        spine_skeleton_bounds_dispose(wrappee)
+    }
+
+    public func update(skeleton: Skeleton, updateAabb: Bool) {
+        spine_skeleton_bounds_update(wrappee, skeleton.wrappee, updateAabb ? -1 : 0)
+    }
+
+    @discardableResult
+    public func aabbContainsPoint(x: Float, y: Float) -> Bool {
+        return spine_skeleton_bounds_aabb_contains_point(wrappee, x, y) != 0
+    }
+
+    @discardableResult
+    public func aabbIntersectsSegment(x1: Float, y1: Float, x2: Float, y2: Float) -> Bool {
+        return spine_skeleton_bounds_aabb_intersects_segment(wrappee, x1, y1, x2, y2) != 0
+    }
+
+    @discardableResult
+    public func aabbIntersectsSkeleton(otherBounds: SkeletonBounds) -> Bool {
+        return spine_skeleton_bounds_aabb_intersects_skeleton(wrappee, otherBounds.wrappee) != 0
+    }
+
+    @discardableResult
+    public func containsPoint(polygon: Polygon, x: Float, y: Float) -> Bool {
+        return spine_skeleton_bounds_contains_point(wrappee, polygon.wrappee, x, y) != 0
+    }
+
+    @discardableResult
+    public func containsPointAttachment(x: Float, y: Float) -> BoundingBoxAttachment {
+        return .init(spine_skeleton_bounds_contains_point_attachment(wrappee, x, y))
+    }
+
+    @discardableResult
+    public func intersectsSegmentAttachment(x1: Float, y1: Float, x2: Float, y2: Float) -> BoundingBoxAttachment {
+        return .init(spine_skeleton_bounds_intersects_segment_attachment(wrappee, x1, y1, x2, y2))
+    }
+
+    @discardableResult
+    public func intersectsSegment(polygon: Polygon, x1: Float, y1: Float, x2: Float, y2: Float) -> Bool {
+        return spine_skeleton_bounds_intersects_segment(wrappee, polygon.wrappee, x1, y1, x2, y2) != 0
+    }
+
+    @discardableResult
+    public func getPolygon(attachment: BoundingBoxAttachment) -> Polygon {
+        return .init(spine_skeleton_bounds_get_polygon(wrappee, attachment.wrappee))
+    }
+
+    @discardableResult
+    public func getBoundingBox(polygon: Polygon) -> BoundingBoxAttachment {
+        return .init(spine_skeleton_bounds_get_bounding_box(wrappee, polygon.wrappee))
+    }
+
+}
+
 @objc(SpineTextureRegion)
 @objcMembers
 public final class TextureRegion: NSObject {
@@ -3090,6 +3188,27 @@ public final class Sequence: NSObject {
 
 }
 
+@objc(SpinePolygon)
+@objcMembers
+public final class Polygon: NSObject {
+
+    internal let wrappee: spine_polygon
+
+    internal init(_ wrappee: spine_polygon) {
+        self.wrappee = wrappee
+        super.init()
+    }
+
+    public var vertices: [Float?] {
+        let num = Int(spine_polygon_get_num_vertices(wrappee))
+        let ptr = spine_polygon_get_vertices(wrappee)
+        return (0..<num).compactMap {
+            ptr?[$0]
+        }
+    }
+
+}
+
 @objc(SpineBounds)
 @objcMembers
 public final class Bounds: NSObject {