SDK Change Notes for Cinema 4D 2026.1.0

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

Overview

For an an overview of the required development environment for this release on Windows, MacOS, or Linux, see Development Environments.

Major Changes

2026.0

No changes

2026.0

Added
Migrating to the 2026.0 API manual, providing a brief overview of the last releases changes for returning developers.
Updated
the Code Style Guide, adding new sections about the supported C++ features, usage of the std library, pointers, casting, and global constants.

Minor Changes

2026.1

No changes

2026.0

Updated
the format with which major release change notes are delivered. The API changes of a major release will now always contain the changes throughout the entire release cycle. E.g., these 2026 change notes compare against the 2025.0.2 release and not the 2025.3 release. The change notes will contain an condensed summary of all change notes in that cycle.

API Changes

Summarizes the technical changes made to the public APIs of Cinema 4D within the scope of these change notes.

The section below lists the differences between the 2026.1.0 and 2026.0.0 API as collapsible sections organized in frameworks, files, and changes. The collapsible sections each denote the number of changes they contain in light gray on the right of the section bar. Note that change means here block of change, so 10 consecutive lines which have all been changed count as one change. Click a section bar to expand or close it it, or click the ↧ or ↥ button to expand or close a framework section and all its nested sections. With the ▸ button found on file sections, you can jump to the complete file dif for that file, a ⇲ button will transport you to the matching documentation page of a file or framework.