Update CHANGES.md

Author: gdamiand

Installation/CHANGES.md

@@ -16,9 +16,11 @@ Release date: July 2026
   - `import_from_plane_graph()` → `read_plane_graph_in_lcc()`
   - `import_from_polyhedron_3()` → `polyhedron_3_to_lcc()`
   - `import_from_triangulation_3()` → `triangulation_3_to_lcc()`
-- The old function names are still available but marked as deprecated for backward compatibility.
+  - The old function names are still available but marked as deprecated for backward compatibility.
 
-### [Shape Detection](https://doc.cgal.org/6.2/Manual/packages.html#PkgShapeDetection) 
+- **New functions**: Two functions are added `CGAL::IO::Read_VTK<LCC>()` and `CGAL::IO::Write_VTK<LCC>()` adding the ability to read and write .vtk files (legacy ASCII) for 3D Linear_cell_complex (dimension 3, ambient dimension 3). These functions support per-vertex and per-volume scalar fields and handles various VTK cell types.
+
+### [Shape Detection](https://doc.cgal.org/6.2/Manual/packages.html#PkgShapeDetection)
 
 - Added the region type [`CGAL::Shape_detection::Polygon_mesh::Plane_face_region`](https://doc.cgal.org/6.2/Shape_detection/class_c_g_a_l_1_1_shape__detection_1_1_polygon__mesh_1_1_plane__face__region.html) that extends the support plane of the seed face without refitting the plane to the region
 - Added the region type [`CGAL::Shape_detection::Polygon_mesh::Line_segment_region`](https://doc.cgal.org/6.2/Shape_detection/classCGAL_1_1Shape__detection_1_1Segment__set_1_1Line__segment__region.html) that extends the support line of the seed segment without refitting the line to the region