Here is a more formal and tech-detailed article

Arnold Render 4.4.0 is a significant update that brings improved performance, new features, and enhanced capabilities to Cinema 4D artists. With its focus on efficiency, control, and compatibility, this update is sure to be a welcome addition to any C4D workflow. If you're a Cinema 4D user looking to take your rendering to the next level, be sure to check out Arnold Render 4.4.0 today.

Feel free to give me a heads up if I can do something else for you!

Arnold Render 4.4.0 is compatible with a range of Cinema 4D versions, including R21, R22, R23, and others.

Solid Angle has announced the release of Arnold Render 4.4.0, a major update to their widely-used rendering engine. This latest version provides Cinema 4D users with R21, R22, R23, and other recent versions with a range of new features, performance improvements, and bug fixes.