diff --git a/.github/workflows/pypi-release.yml b/.github/workflows/pypi-release.yml
index d41fbf2234..7da0a40ec6 100644
--- a/.github/workflows/pypi-release.yml
+++ b/.github/workflows/pypi-release.yml
@@ -71,6 +71,9 @@ jobs:
     needs:
       - create-gh-release
     runs-on: ubuntu-24.04
+    environment: pypi-publish
+    permissions:
+      id-token: write
 
     steps:
       - name: Download built archives
@@ -81,6 +84,4 @@ jobs:
 
       - name: Publish to PyPI
         if: startsWith(github.ref, 'refs/tags')
-        uses: pypa/gh-action-pypi-publish@release/v1
-        with:
-          password: ${{ secrets.PYPI_API_TOKEN }}
+        uses: pypa/gh-action-pypi-publish@release/v1
\ No newline at end of file
diff --git a/.readthedocs.yml b/.readthedocs.yml
index 683f3a82a3..27c1595902 100644
--- a/.readthedocs.yml
+++ b/.readthedocs.yml
@@ -9,7 +9,7 @@ version: 2
 build:
   os: ubuntu-22.04
   tools:
-    python: "3.11"
+    python: "3.13"
 
 # Build PDF & ePub
 formats:
diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index 4d347b7037..7230c41fc5 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -19,7 +19,7 @@ jobs:
       parameters:
           job_name: ubuntu22_cpython
           image_name: ubuntu-22.04
-          python_versions: ['3.9', '3.10', '3.11', '3.12', '3.13']
+          python_versions: ['3.10', '3.11', '3.12', '3.13', '3.14']
           test_suites:
               all: venv/bin/pytest -n 2 -vvs
 
@@ -27,7 +27,7 @@ jobs:
       parameters:
           job_name: ubuntu24_cpython
           image_name: ubuntu-24.04
-          python_versions: ['3.9', '3.10', '3.11', '3.12', '3.13']
+          python_versions: ['3.10', '3.11', '3.12', '3.13', '3.14']
           test_suites:
               all: venv/bin/pytest -n 2 -vvs
 
@@ -35,7 +35,7 @@ jobs:
       parameters:
           job_name: macos13_cpython
           image_name: macOS-13
-          python_versions: ['3.9', '3.10', '3.11', '3.12', '3.13']
+          python_versions: ['3.10', '3.11', '3.12', '3.13', '3.14']
           test_suites:
               all: venv/bin/pytest -n 2 -vvs
 
@@ -43,7 +43,7 @@ jobs:
       parameters:
           job_name: macos14_cpython
           image_name: macOS-14
-          python_versions: ['3.9', '3.10', '3.11', '3.12', '3.13']
+          python_versions: ['3.10', '3.11', '3.12', '3.13', '3.14']
           test_suites:
               all: venv/bin/pytest -n 2 -vvs
 
@@ -51,7 +51,7 @@ jobs:
       parameters:
           job_name: macos15_cpython
           image_name: macOS-15
-          python_versions: ['3.9', '3.10', '3.11', '3.12', '3.13']
+          python_versions: ['3.10', '3.11', '3.12', '3.13', '3.14']
           test_suites:
               all: venv/bin/pytest -n 2 -vvs
 
@@ -59,7 +59,7 @@ jobs:
       parameters:
           job_name: win2022_cpython
           image_name: windows-2022
-          python_versions: ['3.9', '3.10', '3.11', '3.12', '3.13']
+          python_versions: ['3.10', '3.11', '3.12', '3.13', '3.14']
           test_suites:
               all: venv\Scripts\pytest -n 2 -vvs
 
@@ -67,6 +67,6 @@ jobs:
       parameters:
           job_name: win2025_cpython
           image_name: windows-2025
-          python_versions: ['3.9', '3.10', '3.11', '3.12', '3.13']
+          python_versions: ['3.10', '3.11', '3.12', '3.13', '3.14']
           test_suites:
               all: venv\Scripts\pytest -n 2 -vvs
diff --git a/etc/scripts/utils_thirdparty.py b/etc/scripts/utils_thirdparty.py
index 6f812f090e..bc68ac7e69 100644
--- a/etc/scripts/utils_thirdparty.py
+++ b/etc/scripts/utils_thirdparty.py
@@ -115,14 +115,14 @@
 TRACE_ULTRA_DEEP = False
 
 # Supported environments
-PYTHON_VERSIONS = "39", "310", "311", "312", "313"
+PYTHON_VERSIONS = "310", "311", "312", "313", "314"
 
 PYTHON_DOT_VERSIONS_BY_VER = {
-    "39": "3.9",
     "310": "3.10",
     "311": "3.11",
     "312": "3.12",
     "313": "3.13",
+    "314": "3.14",
 }
 
 
@@ -134,11 +134,11 @@ def get_python_dot_version(version):
 
 
 ABIS_BY_PYTHON_VERSION = {
-    "39": ["cp39", "cp39m", "abi3"],
     "310": ["cp310", "cp310m", "abi3"],
     "311": ["cp311", "cp311m", "abi3"],
     "312": ["cp312", "cp312m", "abi3"],
     "313": ["cp313", "cp313m", "abi3"],
+    "314": ["cp314", "cp314m", "abi3"],
 }
 
 PLATFORMS_BY_OS = {
diff --git a/pyproject.toml b/pyproject.toml
index d79574ef95..f106e6936b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,5 +1,5 @@
 [build-system]
-requires = ["setuptools >= 50", "wheel", "setuptools_scm[toml] >= 6"]
+requires = ["setuptools >= 50", "wheel"]
 build-backend = "setuptools.build_meta"
 
 [tool.setuptools_scm]
diff --git a/setup.cfg b/setup.cfg
index 69f850ca6a..a0f2985384 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -31,7 +31,7 @@ license_files =
     README.rst
 
 [options]
-python_requires = >=3.9
+python_requires = >=3.10
 
 package_dir =
     =src
@@ -39,9 +39,6 @@ packages = find:
 include_package_data = true
 zip_safe = false
 
-setup_requires = setuptools_scm[toml] >= 4
-
-
 install_requires =