Update to 2.9.0-rc6

aarch64 is not building, so disable.

Signed-off-by: Tom Rix <Tom.Rix@amd.com>

pyproject.toml

@@ -1,49 +1,105 @@
+# Package ######################################################################
+
+[build-system]
+requires = [
+    # 70.1.0: min version for integrated bdist_wheel command from wheel package
+    # 77.0.0: min version for SPDX expression support for project.license
+    "setuptools>=70.1.0,<80.0",
+    "cmake>=3.27",
+    "ninja",
+    "numpy",
+    "packaging",
+    "pyyaml",
+    "requests",
+    "six",  # dependency chain: NNPACK -> PeachPy -> six
+    "typing-extensions>=4.10.0",
+]
+build-backend = "setuptools.build_meta"
+
+[dependency-groups]
+dev = [
+    # This list should be kept in sync with the requirements-build.txt
+    # in PyTorch root until the project fully migrates to pyproject.toml
+    # after which this can be removed as it is already specified in the
+    # [build-system] section
+    "setuptools>=70.1.0,<80.0",  # setuptools develop deprecated on 80.0
+    "cmake>=3.27",
+    "ninja",
+    "numpy",
+    "packaging",
+    "pyyaml",
+    "requests",
+    "six",  # dependency chain: NNPACK -> PeachPy -> six
+    "typing-extensions>=4.10.0",
+
+    # This list should be kept in sync with the requirements.txt in
+    # PyTorch root until the project fully migrates to pyproject.toml
+    "build[uv]",
+    "expecttest>=0.3.0",
+    "filelock",
+    "fsspec>=0.8.5",
+    "hypothesis",
+    "jinja2",
+    "lintrunner; platform_machine != 's390x' and platform_machine != 'riscv64'",
+    "networkx>=2.5.1",
+    "optree>=0.13.0",
+    "psutil",
+    "sympy>=1.13.3",
+    "typing-extensions>=4.13.2",
+    "wheel",
+]
+
 [project]
 name = "torch"
-requires-python = ">=3.9"
-license = {text = "BSD-3-Clause"}
+description = "Tensors and Dynamic neural networks in Python with strong GPU acceleration"
+readme = "README.md"
+requires-python = ">=3.10"
+# TODO: change to `license = "BSD-3-Clause"` and enable PEP 639 after pinning setuptools>=77
+# FIXME: As of 2025.06.20, it is hard to ensure the minimum version of setuptools in our CI environment.
+# TOML-table-based license deprecated in setuptools>=77, and the deprecation warning will be changed
+# to an error on 2026.02.18. See also: https://github.com/pypa/setuptools/issues/4903
+license = { text = "BSD-3-Clause" }
+authors = [{ name = "PyTorch Team", email = "packages@pytorch.org" }]
+keywords = ["pytorch", "machine learning"]
+classifiers = [
+    "Development Status :: 5 - Production/Stable",
+    "Intended Audience :: Developers",
+    "Intended Audience :: Education",
+    "Intended Audience :: Science/Research",
+    "Topic :: Scientific/Engineering",
+    "Topic :: Scientific/Engineering :: Mathematics",
+    "Topic :: Scientific/Engineering :: Artificial Intelligence",
+    "Topic :: Software Development",
+    "Topic :: Software Development :: Libraries",
+    "Topic :: Software Development :: Libraries :: Python Modules",
+    "Programming Language :: C++",
+    "Programming Language :: Python :: 3 :: Only",
+    "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3.12",
+    "Programming Language :: Python :: 3.13",
+    "Programming Language :: Python :: 3.14",
+]
 dynamic = [
-    "authors",
-    "classifiers",
     "entry-points",
     "dependencies",
-    "description",
-    "keywords",
-    "optional-dependencies",
-    "readme",
     "scripts",
     "version",
 ]
 
 [project.urls]
-Homepage = "https://pytorch.org/"
-Documentation = "https://pytorch.org/docs/"
-Source = "https://github.com/pytorch/pytorch"
-Forum = "https://discuss.pytorch.org/"
+Homepage = "https://pytorch.org"
+Repository = "https://github.com/pytorch/pytorch"
+Documentation = "https://pytorch.org/docs"
+"Issue Tracker" = "https://github.com/pytorch/pytorch/issues"
+Forum = "https://discuss.pytorch.org"
 
+[project.optional-dependencies]
+optree = ["optree>=0.13.0"]
+opt-einsum = ["opt-einsum>=3.3"]
+pyyaml = ["pyyaml"]
 
-[build-system]
-requires = [
-    # After 75.8.2 dropped dep disttools API. Please fix
-    # API temporarily restored and shim used. Please fix
-    # Setuptools will drop support for setup.py past 80
-    # min version for recursive glob package data support
-    "setuptools>=62.3.0,<80.0",
-    "wheel",
-    "astunparse",
-    "numpy",
-    "ninja",
-    "pyyaml",
-    "cmake",
-    "typing-extensions>=4.10.0",
-    "requests",
-]
-# Use legacy backend to import local packages in setup.py
-build-backend = "setuptools.build_meta:__legacy__"
-
-
-[tool.black]
-line-length = 88
+# Linter tools #################################################################
 
 [tool.isort]
 src_paths = ["caffe2", "torch", "torchgen", "functorch", "test"]
@@ -59,12 +115,10 @@ multi_line_output = 3
 include_trailing_comma = true
 combine_as_imports = true
 
-
 [tool.usort.known]
 first_party = ["caffe2", "torch", "torchgen", "functorch", "test"]
 standard_library = ["typing_extensions"]
 
-
 [tool.ruff]
 line-length = 88
 src = ["caffe2", "torch", "torchgen", "functorch", "test"]
@@ -105,6 +159,7 @@ ignore = [
     "E741",
     "EXE001",
     "F405",
+    "FURB122", # writelines
     # these ignores are from flake8-logging-format; please fix!
     "G101",
     # these ignores are from ruff NPY; please fix!
@@ -127,7 +182,15 @@ ignore = [
     "SIM117",
     "SIM118",
     "UP007", # keep-runtime-typing
+    "UP045", # keep-runtime-typing
     "TC006",
+    # TODO: Remove Python-3.10 specific suppressions
+    "B905",
+    "UP035",
+    "UP036",
+    "UP038",
+    "UP041",
+    "FURB161",
 ]
 select = [
     "B",
@@ -208,6 +271,10 @@ select = [
     "YTT",
 ]
 
+[tool.ruff.lint.pyupgrade]
+# Preserve types, even if a file imports `from __future__ import annotations`.
+keep-runtime-typing = true
+
 [tool.ruff.lint.per-file-ignores]
 "__init__.py" = [
     "F401",