diff --git a/.ci/docker/manywheel/Dockerfile_2_28 b/.ci/docker/manywheel/Dockerfile_2_28
index b150423e9954..7f279a1c1a73 100644
--- a/.ci/docker/manywheel/Dockerfile_2_28
+++ b/.ci/docker/manywheel/Dockerfile_2_28
@@ -128,7 +128,7 @@ ENV PATH=/opt/rh/gcc-toolset-${DEVTOOLSET_VERSION}/root/usr/bin:$PATH
 ENV LD_LIBRARY_PATH=/opt/rh/gcc-toolset-${DEVTOOLSET_VERSION}/root/usr/lib64:/opt/rh/gcc-toolset-${DEVTOOLSET_VERSION}/root/usr/lib:$LD_LIBRARY_PATH
 # Install setuptools and wheel for python 3.12/3.13
 RUN for cpython_version in "cp312-cp312" "cp313-cp313" "cp313-cp313t"; do \
-    /opt/python/${cpython_version}/bin/python -m pip install setuptools wheel; \
+    /opt/python/${cpython_version}/bin/python -m pip install "setuptools>=77.0.0" "packaging>=24.2" wheel; \
     done;
 
 
diff --git a/.ci/docker/manywheel/Dockerfile_s390x b/.ci/docker/manywheel/Dockerfile_s390x
index 46ec7f77ae8b..335488b88f12 100644
--- a/.ci/docker/manywheel/Dockerfile_s390x
+++ b/.ci/docker/manywheel/Dockerfile_s390x
@@ -124,10 +124,9 @@ RUN python3 -mpip install cmake==3.28.0
 # install newest flatbuffers version first:
 # for some reason old version is getting pulled in otherwise.
 # packaging package is required for onnxruntime wheel build.
-RUN pip3 install flatbuffers && \
-  pip3 install cython 'pkgconfig>=1.5.5' 'setuptools>=77' 'numpy<2.3.0' && \
+RUN pip3 install 'setuptools>=77.0' 'packaging>=24.2' && \
+  pip3 install flatbuffers cython 'pkgconfig>=1.5.5' 'numpy<2.3.0' && \
   pip3 install --no-build-isolation h5py==3.11.0 && \
-  pip3 install packaging && \
   git clone https://github.com/microsoft/onnxruntime && \
   cd onnxruntime && git checkout v1.21.0 && \
   git submodule update --init --recursive && \
diff --git a/.ci/docker/requirements-ci.txt b/.ci/docker/requirements-ci.txt
index 9c8251989477..650c4e58c8ba 100644
--- a/.ci/docker/requirements-ci.txt
+++ b/.ci/docker/requirements-ci.txt
@@ -50,7 +50,7 @@ flatbuffers==24.12.23
 hypothesis==5.35.1
 # Pin hypothesis to avoid flakiness: https://github.com/pytorch/pytorch/issues/31136
 #Description: advanced library for generating parametrized tests
-#Pinned versions: 3.44.6, 4.53.2
+#Pinned versions: 5.35.1
 #test that import: test_xnnpack_integration.py, test_pruning_op.py, test_nn.py
 
 junitparser==2.1.1
@@ -307,7 +307,7 @@ pytest-cpp==2.3.0
 #Pinned versions: 2.3.0
 #test that import:
 
-z3-solver==4.12.6.0
+z3-solver==4.15.1.0
 #Description: The Z3 Theorem Prover Project
 #Pinned versions:
 #test that import:
@@ -363,9 +363,10 @@ pwlf==2.2.1
 
 
 # To build PyTorch itself
+packaging>=24.2
 pyyaml
 pyzstd
-setuptools>=70.1.0
+setuptools>=77.0.0
 six
 
 scons==4.5.2 ; platform_machine == "aarch64"
diff --git a/.ci/pytorch/build.sh b/.ci/pytorch/build.sh
index 994bd179e464..07bf2037f430 100755
--- a/.ci/pytorch/build.sh
+++ b/.ci/pytorch/build.sh
@@ -269,6 +269,9 @@ if [[ "$BUILD_ENVIRONMENT" == *-bazel-* ]]; then
     tools/bazel build --config=no-tty "${BAZEL_MEM_LIMIT}" "${BAZEL_CPU_LIMIT}" //...
   fi
 else
+  # install build-system requirements before running setup.py commands
+  python -m pip install -r requirements-build.txt
+
   # check that setup.py would fail with bad arguments
   echo "The next three invocations are expected to fail with invalid command error messages."
   ( ! get_exit_code python setup.py bad_argument )
diff --git a/.ci/pytorch/win-test-helpers/build_pytorch.bat b/.ci/pytorch/win-test-helpers/build_pytorch.bat
index 7ceb425ce2d1..74c9183f2abb 100644
--- a/.ci/pytorch/win-test-helpers/build_pytorch.bat
+++ b/.ci/pytorch/win-test-helpers/build_pytorch.bat
@@ -126,6 +126,11 @@ if "%USE_CUDA%"=="1" (
   set CMAKE_CUDA_COMPILER_LAUNCHER=%TMP_DIR%/bin/randomtemp.exe;%TMP_DIR%\bin\sccache.exe
 )
 
+:: Install build-system requirements before running setup.py commands
+python -m pip install -r requirements-build.txt
+if errorlevel 1 goto fail
+if not errorlevel 0 goto fail
+
 :: Print all existing environment variable for debugging
 set
 
diff --git a/.ci/pytorch/win-test.sh b/.ci/pytorch/win-test.sh
index b61dd06ef562..be7f3e4bb35c 100755
--- a/.ci/pytorch/win-test.sh
+++ b/.ci/pytorch/win-test.sh
@@ -41,7 +41,7 @@ fi
 python -m pip install pytest-rerunfailures==10.3 pytest-cpp==2.3.0 tensorboard==2.13.0 protobuf==5.29.4 pytest-subtests==0.13.1
 
 # Install Z3 optional dependency for Windows builds.
-python -m pip install z3-solver==4.12.2.0
+python -m pip install z3-solver==4.15.1.0
 
 # Install tlparse for test\dynamo\test_structured_trace.py UTs.
 python -m pip install tlparse==0.3.30
diff --git a/.ci/pytorch/windows/internal/install_python.bat b/.ci/pytorch/windows/internal/install_python.bat
index 73622bd736ed..65405a875b6b 100644
--- a/.ci/pytorch/windows/internal/install_python.bat
+++ b/.ci/pytorch/windows/internal/install_python.bat
@@ -18,5 +18,5 @@ start /wait "" python-amd64.exe /quiet InstallAllUsers=1 PrependPath=0 Include_t
 if errorlevel 1 exit /b 1
 
 set "PATH=%CD%\Python\Scripts;%CD%\Python;%PATH%"
-%PYTHON_EXEC% -m pip install --upgrade pip setuptools packaging wheel
+%PYTHON_EXEC% -m pip install --upgrade pip "setuptools>=77.0.0" "packaging>=24.2" wheel
 if errorlevel 1 exit /b 1
diff --git a/.ci/pytorch/windows/setup_build.bat b/.ci/pytorch/windows/setup_build.bat
index 9b492eef664d..df925b4ba90b 100644
--- a/.ci/pytorch/windows/setup_build.bat
+++ b/.ci/pytorch/windows/setup_build.bat
@@ -7,6 +7,9 @@ call "internal\install_python.bat"
 
 %PYTHON_EXEC% --version
 set "PATH=%CD%\Python\Lib\site-packages\cmake\data\bin;%CD%\Python\Scripts;%CD%\Python;%PATH%"
+
+%PYTHON_EXEC% -m pip install "setuptools>=77.0.0" "packaging>=24.2"
+
 if "%DESIRED_PYTHON%" == "3.13t" %PYTHON_EXEC% -m pip install numpy==2.2.1 cmake
 if "%DESIRED_PYTHON%" == "3.13" %PYTHON_EXEC% -m pip install numpy==2.1.2 cmake
 if "%DESIRED_PYTHON%" == "3.12" %PYTHON_EXEC% -m pip install numpy==2.0.2 cmake
@@ -16,7 +19,7 @@ if "%DESIRED_PYTHON%" == "3.9" %PYTHON_EXEC% -m pip install numpy==2.0.2 cmake
 
 %PYTHON_EXEC% -m pip install pyyaml
 %PYTHON_EXEC% -m pip install mkl-include mkl-static
-%PYTHON_EXEC% -m pip install boto3 ninja typing_extensions setuptools==72.1.0
+%PYTHON_EXEC% -m pip install boto3 ninja typing-extensions
 
 where cmake.exe
 
diff --git a/.ci/wheel/build_wheel.sh b/.ci/wheel/build_wheel.sh
index 878d6595c84c..dc44f8ccc292 100755
--- a/.ci/wheel/build_wheel.sh
+++ b/.ci/wheel/build_wheel.sh
@@ -127,7 +127,7 @@ export INSTALL_TEST=0 # dont install test binaries into site-packages
 export MACOSX_DEPLOYMENT_TARGET=10.15
 export CMAKE_PREFIX_PATH=${CONDA_PREFIX:-"$(dirname $(which conda))/../"}
 
-SETUPTOOLS_PINNED_VERSION="==70.1.0"
+SETUPTOOLS_PINNED_VERSION="==77.0.0"
 PYYAML_PINNED_VERSION="=5.3"
 EXTRA_CONDA_INSTALL_FLAGS=""
 CONDA_ENV_CREATE_FLAGS=""
@@ -135,7 +135,7 @@ RENAME_WHEEL=true
 case $desired_python in
     3.13t)
         echo "Using 3.13 deps"
-        SETUPTOOLS_PINNED_VERSION=">=70.1.0"
+        SETUPTOOLS_PINNED_VERSION=">=77.0.0"
         PYYAML_PINNED_VERSION=">=6.0.1"
         NUMPY_PINNED_VERSION="=2.1.0"
         CONDA_ENV_CREATE_FLAGS="python-freethreading"
@@ -145,31 +145,31 @@ case $desired_python in
         ;;
     3.13)
         echo "Using 3.13 deps"
-        SETUPTOOLS_PINNED_VERSION=">=70.1.0"
+        SETUPTOOLS_PINNED_VERSION=">=77.0.0"
         PYYAML_PINNED_VERSION=">=6.0.1"
         NUMPY_PINNED_VERSION="=2.1.0"
         ;;
     3.12)
         echo "Using 3.12 deps"
-        SETUPTOOLS_PINNED_VERSION=">=70.1.0"
+        SETUPTOOLS_PINNED_VERSION=">=77.0.0"
         PYYAML_PINNED_VERSION=">=6.0.1"
         NUMPY_PINNED_VERSION="=2.0.2"
         ;;
     3.11)
         echo "Using 3.11 deps"
-        SETUPTOOLS_PINNED_VERSION=">=70.1.0"
+        SETUPTOOLS_PINNED_VERSION=">=77.0.0"
         PYYAML_PINNED_VERSION=">=5.3"
         NUMPY_PINNED_VERSION="=2.0.2"
         ;;
     3.10)
         echo "Using 3.10 deps"
-        SETUPTOOLS_PINNED_VERSION=">=70.1.0"
+        SETUPTOOLS_PINNED_VERSION=">=77.0.0"
         PYYAML_PINNED_VERSION=">=5.3"
         NUMPY_PINNED_VERSION="=2.0.2"
         ;;
     3.9)
         echo "Using 3.9 deps"
-        SETUPTOOLS_PINNED_VERSION=">=70.1.0"
+        SETUPTOOLS_PINNED_VERSION=">=77.0.0"
         PYYAML_PINNED_VERSION=">=5.3"
         NUMPY_PINNED_VERSION="=2.0.2"
         ;;
diff --git a/.github/requirements/pip-requirements-macOS.txt b/.github/requirements/pip-requirements-macOS.txt
index e8464f0a55ff..7eaa962995b7 100644
--- a/.github/requirements/pip-requirements-macOS.txt
+++ b/.github/requirements/pip-requirements-macOS.txt
@@ -12,7 +12,7 @@ numba==0.59.0
 numpy==1.26.4
 opt-einsum>=3.3
 optree==0.13.0
-packaging==23.1
+packaging==25.0
 parameterized==0.8.1
 pillow==10.3.0
 protobuf==5.29.4
@@ -26,11 +26,11 @@ pytest-xdist==3.3.1
 pytest==7.3.2
 pyyaml==6.0.2
 scipy==1.12.0
-setuptools==72.1.0
+setuptools==80.9.0
 sympy==1.13.3
 tlparse==0.3.30
 tensorboard==2.13.0
 typing-extensions==4.12.2
 unittest-xml-reporting<=3.2.0,>=2.0.0
 xdoctest==1.1.0
-z3-solver==4.12.2.0
+z3-solver==4.15.1.0
diff --git a/.github/scripts/lintrunner.sh b/.github/scripts/lintrunner.sh
index ef4741444f94..1411ff0397b5 100755
--- a/.github/scripts/lintrunner.sh
+++ b/.github/scripts/lintrunner.sh
@@ -2,7 +2,7 @@
 set -ex
 
 # Use uv to speed up lintrunner init
-python3 -m pip install uv==0.1.45 setuptools
+python3 -m pip install -U uv setuptools
 
 CACHE_DIRECTORY="/tmp/.lintbin"
 # Try to recover the cached binaries
diff --git a/.github/scripts/windows/build_triton.bat b/.github/scripts/windows/build_triton.bat
index 97cd535a4988..da2e86b40432 100644
--- a/.github/scripts/windows/build_triton.bat
+++ b/.github/scripts/windows/build_triton.bat
@@ -10,7 +10,7 @@ if "%PY_VERS%" == "3.13t" (
     call conda create -n %PYTHON_PREFIX% -y -c=conda-forge python=%PY_VERS%
 )
 :: Fix cmake version for issue https://github.com/pytorch/pytorch/issues/150480
-call conda run -n %PYTHON_PREFIX% pip install wheel pybind11 certifi cython cmake==3.31.6 setuptools==72.1.0 ninja
+call conda run -n %PYTHON_PREFIX% pip install wheel pybind11 certifi cython cmake==3.31.6 setuptools==78.1.1 ninja
 
 dir "%VC_INSTALL_PATH%"
 
diff --git a/pyproject.toml b/pyproject.toml
index b41ae87621f0..133da9289f5c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -2,13 +2,12 @@
 
 [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",
+    "setuptools>=77.0.0,<80.0",
     "cmake>=3.27",
     "ninja",
     "numpy",
-    "packaging",
+    "packaging>=24.2",
     "pyyaml",
     "requests",
     "six",  # dependency chain: NNPACK -> PeachPy -> six
@@ -21,11 +20,7 @@ name = "torch"
 description = "Tensors and Dynamic neural networks in Python with strong GPU acceleration"
 readme = "README.md"
 requires-python = ">=3.9,<3.14"
-# 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" }
+license = "BSD-3-Clause"
 authors = [{ name = "PyTorch Team", email = "packages@pytorch.org" }]
 keywords = ["pytorch", "machine learning"]
 classifiers = [
diff --git a/requirements-build.txt b/requirements-build.txt
index be19d987f73d..12332b0e1af0 100644
--- a/requirements-build.txt
+++ b/requirements-build.txt
@@ -1,9 +1,9 @@
 # Build System requirements
-setuptools>=70.1.0,<80.0  # setuptools develop deprecated on 80.0
+setuptools>=77.0.0,<80.0  # setuptools develop deprecated on 80.0
 cmake>=3.27
 ninja
 numpy
-packaging
+packaging>=24.2
 pyyaml
 requests
 six  # dependency chain: NNPACK -> PeachPy -> six
diff --git a/test/dynamo/test_exc.py b/test/dynamo/test_exc.py
index acc3fd55f6fb..c340a2882d47 100644
--- a/test/dynamo/test_exc.py
+++ b/test/dynamo/test_exc.py
@@ -251,13 +251,13 @@ translation validation failed.
 
 Model:
   ==> L['shape'][0]: 0
-  ==> L['shape'][1]: 1
-  ==> L['shape'][2]: 1
+  ==> L['shape'][1]: 0
+  ==> L['shape'][2]: 0
   ==> L['x'].size()[0]: 3
   ==> L['x'].storage_offset(): 0
   ==> L['x'].stride()[0]: 1
-  ==> s3: 1
-  ==> s52: 1
+  ==> s3: 0
+  ==> s52: 0
   ==> s77: 3
   ==> s86: 0
 
@@ -315,16 +315,16 @@ Failure occurred while running node:
     %split : [num_users=3] = call_method[target=split](args = (%l_x_, (%l_shape_0_, %l_shape_1_, %l_shape_2_)), kwargs = {})
 
 Model:
-  ==> L['shape'][0]: 1
-  ==> L['shape'][1]: 1
+  ==> L['shape'][0]: 0
+  ==> L['shape'][1]: 0
   ==> L['shape'][2]: 0
   ==> L['x'].size()[0]: 3
   ==> L['x'].storage_offset(): 0
   ==> L['x'].stride()[0]: 1
   ==> s3: 0
-  ==> s52: 1
+  ==> s52: 0
   ==> s77: 3
-  ==> s86: 1
+  ==> s86: 0
 
 Assertions:
   ==> (== 0 L['x'].storage_offset())