SDK Change Notes for Cinema 4D 2026.1.0

Summarizes the API and API documentation changes made between Cinema 4D version 2026.0.0 and 2026.1.0.

Documentation Changes

Major Changes

• Added Licensing Manual, providing an overview of how to implement licensing for Python plugins in Cinema 4D.

• Added py-licensing_2026 example to better demonstrate how to implement a licensable plugin.

• Deprecated old py-licensing_example_r21 example.

Minor Changes

• Fixed documentation of ColorSwatchGroup.AddColor().

• Fixed minor bugs and updated doce in the following code examples:

  • basedocument_read_animated_mesh_r16

  • colorswatch_create_new_group_and_color_r20

  • datatype_gradient_r21

  • export_obj_r13

  • geometry_polygonobject_s26

  • render_ogl_half_size_r12

  • tokensystem_render_r17

API Changes

Cinema API

No changes

Maxon API

• Added maxon.NodesGraphModelInterface.ReplaceChild().

Mxutils API

No changes