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Bug: Ray 2.52.0 breaks Python 3.9 compatibility
The pinned
ray==2.52.0version drops Python 3.9 support (no wheels are published), but the project still officially supports Python 3.9 perpyproject.toml(requires-python = ">=3.9,<3.14"). This will cause test dependency installation to fail on Python 3.9 environments. Either the ray version needs a Python version environment marker (e.g.,ray==2.52.0; python_version >= '3.10') with a fallback for Python 3.9, or Python 3.9 support needs to be officially dropped from the project.