Drop Python 3.11 support

.github/workflows/basic.yml

@@ -17,15 +17,15 @@ jobs:
       matrix:
         os: [ubuntu-latest]
         mpi-version: [mpich]
-        python-version: ["py311", "py312", "py313", "py314"]
+        python-version: ["py312", "py313", "py314"]
         comms-type: [m, l]
         include:
           - os: macos-latest
-            python-version: "py311"
+            python-version: "py312"
             mpi-version: mpich
             comms-type: m
           - os: macos-latest
-            python-version: "py311"
+            python-version: "py312"
             mpi-version: mpich
             comms-type: l
 
@@ -69,7 +69,7 @@ jobs:
         run: mypy
 
       - name: Remove various tests on newer pythons
-        if: matrix.python-version == 'py311' || matrix.python-version == 'py312' || matrix.python-version == 'py313' || matrix.python-version == 'py314'
+        if: matrix.python-version == 'py312' || matrix.python-version == 'py313' || matrix.python-version == 'py314'
         run: |
           rm ./libensemble/tests/functionality_tests/test_local_sine_tutorial*.py # matplotlib errors on py312
 

.github/workflows/extra.yml

@@ -11,7 +11,7 @@ jobs:
       matrix:
         os: [ubuntu-latest]
         mpi-version: [mpich]
-        python-version: ["py311e", "py312e", "py313e", "py314e"]
+        python-version: ["py312e", "py313e", "py314e"]
         comms-type: [m, l]
         include:
           - os: macos-latest

docs/advanced_installation/advanced_installation.rst

@@ -8,7 +8,7 @@ libEnsemble can be installed from ``pip``, ``uv``, ``pixi``, ``Conda``, or ``Spa
 libEnsemble requires the following dependencies, which are typically
 automatically installed alongside libEnsemble:
 
-* Python_       ``>= 3.11``
+* Python_       ``>= 3.12``
 * NumPy_        ``>= 1.21``
 * psutil_       ``>= 5.9.4``
 * `pydantic`_   ``>= 2``

docs/advanced_installation/advanced_installation_spack.rst

@@ -44,7 +44,7 @@ the ``py-petsc4py`` module thus created.
 
 **Hint**: When combining Spack and Conda, you can access your Conda Python and packages in your
 ``~/.spack/packages.yaml`` while your Conda environment is activated, using ``CONDA_PREFIX``
-For example, if you have an activated Conda environment with Python 3.11 and SciPy installed:
+For example, if you have an activated Conda environment with Python 3.12 and SciPy installed:
 
 .. code-block:: yaml
 
@@ -57,7 +57,7 @@ For example, if you have an activated Conda environment with Python 3.11 and Sci
     py-numpy:
         externals:
         - spec: "py-numpy"
-        prefix: $CONDA_PREFIX/lib/python3.11/site-packages/numpy
+        prefix: $CONDA_PREFIX/lib/python3.12/site-packages/numpy
         buildable: False
     py-scipy:
         externals:

docs/tutorials/local_sine_tutorial/local_sine_tutorial_1.rst

@@ -8,7 +8,7 @@ the correct version is installed.
 
 .. code-block:: bash
 
-    python --version  # This should be >= 3.11
+    python --version  # This should be >= 3.12
 
 .. _Python: https://www.python.org/
 

pyproject.toml

@@ -12,7 +12,7 @@ dependencies = ["numpy", "psutil", "pydantic", "gest-api"]
 
 description = "A Python toolkit for coordinating asynchronous and dynamic ensembles of calculations."
 name = "libensemble"
-requires-python = ">=3.11"
+requires-python = ">=3.12"
 license = { file = "LICENSE" }
 readme = "README.rst"
 
@@ -26,7 +26,6 @@ classifiers = [
   "Operating System :: Unix",
   "Operating System :: MacOS",
   "Programming Language :: Python :: 3",
-  "Programming Language :: Python :: 3.11",
   "Programming Language :: Python :: 3.12",
   "Programming Language :: Python :: 3.13",
   "Programming Language :: Python :: 3.14",
@@ -68,12 +67,10 @@ docs = ["docs", "basic"]
 dev = ["dev", "basic", "extra", "docs"]
 
 # CI environments
-py311 = ["py311", "basic"]
 py312 = ["py312", "basic"]
 py313 = ["py313", "basic"]
 py314 = ["py314", "basic"]
 
-py311e = ["py311", "py311e", "basic", "extra"]
 py312e = ["py312", "py312e", "basic", "extra"]
 py313e = ["py313", "py313e", "basic", "extra"]
 py314e = ["py314", "py314e", "basic", "extra"]
@@ -158,18 +155,13 @@ octave = ">=9.4.0,<11"
 pyzmq = ">=26.4.0,<28"
 
 # Python versions
-[tool.pixi.feature.py311.dependencies]
-python = "3.11.*"
 [tool.pixi.feature.py312.dependencies]
 python = "3.12.*"
 [tool.pixi.feature.py313.dependencies]
 python = "3.13.*"
 [tool.pixi.feature.py314.dependencies]
 python = "3.14.*"
 
-[tool.pixi.feature.py311e.dependencies]
-globus-compute-sdk = ">=4.10.2,<5"
-
 [tool.pixi.feature.py312e.dependencies]
 globus-compute-sdk = ">=4.10.2,<5"
 
@@ -180,7 +172,7 @@ globus-compute-sdk = ">=4.10.2,<5"
 
 # Dependencies for libEnsemble
 [tool.pixi.dependencies]
-python = ">=3.11,<3.15"
+python = ">=3.12,<3.15"
 pip = ">=25.2,<26"
 setuptools = ">=80.8.0,<81"
 numpy = ">=2.2.6,<3"
@@ -211,7 +203,7 @@ docs = ["pyenchant", "enchant>=0.0.1,<0.0.2", "sphinx-lfs-content>=1.1.10,<2"]
 # Various config from here onward
 [tool.black]
 line-length = 120
-target-version = ["py311", "py312", "py313", "py314"]
+target-version = ["py312", "py313", "py314"]
 force-exclude = '''
 (
   /(