diff --git a/.github/reference-workflows/CI_1_1_1.yaml b/.github/reference-workflows/CI_1_1_1.yaml
index bfd6db5..c4d21b4 100644
--- a/.github/reference-workflows/CI_1_1_1.yaml
+++ b/.github/reference-workflows/CI_1_1_1.yaml
@@ -22,7 +22,7 @@ jobs:
     strategy:
       matrix:
         os: [macOS-latest, ubuntu-latest, windows-latest]
-        python-version: [3.9, "3.10", "3.11"]
+        python-version: ["3.11", "3.12", "3.13"]
 
     steps:
       - uses: actions/checkout@v4
diff --git a/.github/reference-workflows/CI_1_1_2.yaml b/.github/reference-workflows/CI_1_1_2.yaml
index 2599b96..7c766ba 100644
--- a/.github/reference-workflows/CI_1_1_2.yaml
+++ b/.github/reference-workflows/CI_1_1_2.yaml
@@ -22,7 +22,7 @@ jobs:
     strategy:
       matrix:
         os: [macOS-latest, ubuntu-latest, windows-latest]
-        python-version: [3.9, "3.10", "3.11"]
+        python-version: ["3.11", "3.12", "3.13"]
 
     steps:
       - uses: actions/checkout@v4
diff --git a/.github/reference-workflows/CI_1_2_1.yaml b/.github/reference-workflows/CI_1_2_1.yaml
index 4a8bc37..f441ce8 100644
--- a/.github/reference-workflows/CI_1_2_1.yaml
+++ b/.github/reference-workflows/CI_1_2_1.yaml
@@ -22,7 +22,7 @@ jobs:
     strategy:
       matrix:
         os: [macOS-latest, ubuntu-latest, windows-latest]
-        python-version: [3.9, "3.10", "3.11"]
+        python-version: ["3.11", "3.12", "3.13"]
 
     steps:
       - uses: actions/checkout@v4
diff --git a/.github/reference-workflows/CI_1_2_2.yaml b/.github/reference-workflows/CI_1_2_2.yaml
index 0502079..c60fe33 100644
--- a/.github/reference-workflows/CI_1_2_2.yaml
+++ b/.github/reference-workflows/CI_1_2_2.yaml
@@ -22,7 +22,7 @@ jobs:
     strategy:
       matrix:
         os: [macOS-latest, ubuntu-latest, windows-latest]
-        python-version: [3.9, "3.10", "3.11"]
+        python-version: ["3.11", "3.12", "3.13"]
 
     steps:
       - uses: actions/checkout@v4
diff --git a/.github/reference-workflows/CI_1_3_1.yaml b/.github/reference-workflows/CI_1_3_1.yaml
index 6d52c3b..a644e84 100644
--- a/.github/reference-workflows/CI_1_3_1.yaml
+++ b/.github/reference-workflows/CI_1_3_1.yaml
@@ -22,7 +22,7 @@ jobs:
     strategy:
       matrix:
         os: [macOS-latest, ubuntu-latest, windows-latest]
-        python-version: [3.9, "3.10", "3.11"]
+        python-version: ["3.11", "3.12", "3.13"]
 
     steps:
       - uses: actions/checkout@v4
diff --git a/.github/reference-workflows/CI_1_3_2.yaml b/.github/reference-workflows/CI_1_3_2.yaml
index 8a69609..a242a13 100644
--- a/.github/reference-workflows/CI_1_3_2.yaml
+++ b/.github/reference-workflows/CI_1_3_2.yaml
@@ -22,7 +22,7 @@ jobs:
     strategy:
       matrix:
         os: [macOS-latest, ubuntu-latest, windows-latest]
-        python-version: [3.9, "3.10", "3.11"]
+        python-version: ["3.11", "3.12", "3.13"]
 
     steps:
       - uses: actions/checkout@v4
diff --git a/.github/reference-workflows/CI_2_1_1.yaml b/.github/reference-workflows/CI_2_1_1.yaml
index 9db46df..6e51fd9 100644
--- a/.github/reference-workflows/CI_2_1_1.yaml
+++ b/.github/reference-workflows/CI_2_1_1.yaml
@@ -22,7 +22,7 @@ jobs:
     strategy:
       matrix:
         os: [macOS-latest, ubuntu-latest, windows-latest]
-        python-version: [3.9, "3.10", "3.11"]
+        python-version: ["3.11", "3.12", "3.13"]
 
     steps:
       - uses: actions/checkout@v4
diff --git a/.github/reference-workflows/CI_2_1_2.yaml b/.github/reference-workflows/CI_2_1_2.yaml
index 52d1400..52358d6 100644
--- a/.github/reference-workflows/CI_2_1_2.yaml
+++ b/.github/reference-workflows/CI_2_1_2.yaml
@@ -22,7 +22,7 @@ jobs:
     strategy:
       matrix:
         os: [macOS-latest, ubuntu-latest, windows-latest]
-        python-version: [3.9, "3.10", "3.11"]
+        python-version: ["3.11", "3.12", "3.13"]
 
     steps:
       - uses: actions/checkout@v4
diff --git a/.github/reference-workflows/CI_2_2_1.yaml b/.github/reference-workflows/CI_2_2_1.yaml
index c8c8267..193e0fb 100644
--- a/.github/reference-workflows/CI_2_2_1.yaml
+++ b/.github/reference-workflows/CI_2_2_1.yaml
@@ -22,7 +22,7 @@ jobs:
     strategy:
       matrix:
         os: [macOS-latest, ubuntu-latest, windows-latest]
-        python-version: [3.9, "3.10", "3.11"]
+        python-version: ["3.11", "3.12", "3.13"]
 
     steps:
       - uses: actions/checkout@v4
diff --git a/.github/reference-workflows/CI_2_2_2.yaml b/.github/reference-workflows/CI_2_2_2.yaml
index 60afdf5..1c52d7e 100644
--- a/.github/reference-workflows/CI_2_2_2.yaml
+++ b/.github/reference-workflows/CI_2_2_2.yaml
@@ -22,7 +22,7 @@ jobs:
     strategy:
       matrix:
         os: [macOS-latest, ubuntu-latest, windows-latest]
-        python-version: [3.9, "3.10", "3.11"]
+        python-version: ["3.11", "3.12", "3.13"]
 
     steps:
       - uses: actions/checkout@v4
diff --git a/.github/reference-workflows/CI_2_3_1.yaml b/.github/reference-workflows/CI_2_3_1.yaml
index 2eed8cb..ddbbc3e 100644
--- a/.github/reference-workflows/CI_2_3_1.yaml
+++ b/.github/reference-workflows/CI_2_3_1.yaml
@@ -22,7 +22,7 @@ jobs:
     strategy:
       matrix:
         os: [macOS-latest, ubuntu-latest, windows-latest]
-        python-version: [3.9, "3.10", "3.11"]
+        python-version: ["3.11", "3.12", "3.13"]
 
     steps:
       - uses: actions/checkout@v4
diff --git a/.github/reference-workflows/CI_2_3_2.yaml b/.github/reference-workflows/CI_2_3_2.yaml
index 7a3ba2d..b8f5a1a 100644
--- a/.github/reference-workflows/CI_2_3_2.yaml
+++ b/.github/reference-workflows/CI_2_3_2.yaml
@@ -22,7 +22,7 @@ jobs:
     strategy:
       matrix:
         os: [macOS-latest, ubuntu-latest, windows-latest]
-        python-version: [3.9, "3.10", "3.11"]
+        python-version: ["3.11", "3.12", "3.13"]
 
     steps:
       - uses: actions/checkout@v4
diff --git a/.github/workflows/verify-ghas.yaml b/.github/workflows/verify-ghas.yaml
index 569bd76..43e911e 100644
--- a/.github/workflows/verify-ghas.yaml
+++ b/.github/workflows/verify-ghas.yaml
@@ -31,7 +31,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, macOS-latest, windows-latest]
-        python-version: [3.9, "3.10", "3.11"]
+        python-version: ["3.11", "3.12", "3.13"]
     steps:
       - uses: actions/checkout@v4
 
@@ -108,7 +108,7 @@ jobs:
     strategy:  # Approximate strategy, uses a few other options
       matrix:
         os: [ubuntu-latest , macOS-latest, windows-latest]
-        python-version: [3.9, "3.10", "3.11"]
+        python-version: ["3.11", "3.12", "3.13"]
         license: [1]  # Nonstandard
         rtd: [1, 2]  # Nonstandard
     steps:
@@ -175,7 +175,7 @@ jobs:
     strategy:  # Approximate strategy, uses a few other options
       matrix:
         os: [ubuntu-latest , macOS-latest, windows-latest]
-        python-version: [3.9, "3.10", "3.11"]
+        python-version: ["3.11", "3.12", "3.13"]
         license: [1]  # Nonstandard
         rtd: [1, 2]  # Nonstandard
 
@@ -242,7 +242,7 @@ jobs:
     strategy:  # Approximate strategy, uses a few other options
       matrix:
         os: [ubuntu-latest , macOS-latest, windows-latest]
-        python-version: [3.9, "3.10", "3.11"]
+        python-version: ["3.11", "3.12", "3.13"]
         license: [1]  # Nonstandard
         rtd: [1, 2]  # Nonstandard
 
diff --git a/{{cookiecutter.repo_name}}/.github/workflows/CI.yaml b/{{cookiecutter.repo_name}}/.github/workflows/CI.yaml
index 5c1157e..ce56196 100644
--- a/{{cookiecutter.repo_name}}/.github/workflows/CI.yaml
+++ b/{{cookiecutter.repo_name}}/.github/workflows/CI.yaml
@@ -22,7 +22,7 @@ jobs:
     strategy:
       matrix:
         os: [macOS-latest, ubuntu-latest, windows-latest]
-        python-version: [3.9, "3.10", "3.11"]
+        python-version: ["3.11", "3.12", "3.13"]
 
     steps:
       - uses: actions/checkout@v4