Part of simplifying the compositor workflow: https://projects.blender.org/blender/blender/issues/134214 The option "Use Nodes" is removed from the UI and marked deprecated. It will get fully removed in 6.0. "Use Nodes" is effectively replaced by the existing "Compositing" option in the post-processing panel Pull Request: https://projects.blender.org/blender/blender/pulls/138560