Libensemble · jlnav · Mar 11, 2026 · Mar 4, 2026 · Mar 6, 2026 · Mar 6, 2026
diff --git a/.github/workflows/basic.yml b/.github/workflows/basic.yml
@@ -17,7 +17,7 @@ jobs:
             matrix:
                 os: [ubuntu-latest]
                 mpi-version: [mpich]
-                python-version: ["py310", "py311", "py312", "py313", "py314"]
+                python-version: ["py311", "py312", "py313", "py314"]
                 comms-type: [m, l]
                 include:
                     - os: macos-latest

diff --git a/.github/workflows/extra.yml b/.github/workflows/extra.yml
@@ -11,7 +11,7 @@ jobs:
             matrix:
                 os: [ubuntu-latest]
                 mpi-version: [mpich]
-                python-version: ["py310e", "py311e", "py312e", "py313e", "py314e"]
+                python-version: ["py311e", "py312e", "py313e", "py314e"]
                 comms-type: [m, l]
                 include:
                     - os: macos-latest
@@ -70,13 +70,6 @@ jobs:
           run: |
             pixi run -e ${{ matrix.python-version }} pip install gpcam==8.1.13
 
-        - name: Remove xopt tests on old python
-          if: matrix.python-version == 'py310e'
-          run: |
-            rm ./libensemble/tests/regression_tests/test_xopt_EI_xopt_sim.py
-            rm ./libensemble/tests/regression_tests/test_xopt_EI.py
-            rm ./libensemble/tests/regression_tests/test_xopt_nelder_mead.py
-
         - name: Remove test using octave, gpcam, globus-compute on Python 3.13
           if: matrix.python-version == 'py313e' || matrix.python-version == 'py314e'
           run: |

diff --git a/.readthedocs.yml b/.readthedocs.yml
@@ -3,7 +3,7 @@ version: 2
 build:
   os: "ubuntu-22.04"
   tools:
-    python: "3.10"
+    python: "3.12"
   commands:
     # from https://docs.readthedocs.com/platform/stable/build-customization.html#support-git-lfs-large-file-storage
     # Download and uncompress the binary

diff --git a/docs/advanced_installation.rst b/docs/advanced_installation.rst
@@ -6,7 +6,7 @@ libEnsemble can be installed from ``pip``, ``uv``, ``Conda``, or ``Spack``.
 libEnsemble requires the following dependencies, which are typically
 automatically installed alongside libEnsemble:
 
-* Python_       ``>= 3.10``
+* Python_       ``>= 3.11``
 * NumPy_        ``>= 1.21``
 * psutil_       ``>= 5.9.4``
 * `pydantic`_   ``>= 2``
@@ -142,7 +142,7 @@ Further recommendations for selected HPC systems are given in the
 
         **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 3.10 and SciPy installed:
+        For example, if you have an activated Conda environment with Python 3.11 and SciPy installed:
 
         .. code-block:: yaml
 
@@ -155,12 +155,12 @@ Further recommendations for selected HPC systems are given in the
             py-numpy:
                 externals:
                 - spec: "py-numpy"
-                prefix: $CONDA_PREFIX/lib/python3.10/site-packages/numpy
+                prefix: $CONDA_PREFIX/lib/python3.11/site-packages/numpy
                 buildable: False
             py-scipy:
                 externals:
                 - spec: "py-scipy"
-                prefix: $CONDA_PREFIX/lib/python3.10/site-packages/scipy
+                prefix: $CONDA_PREFIX/lib/python3.11/site-packages/scipy
                 buildable: True
 
         For more information on Spack builds and any particular considerations

diff --git a/docs/platforms/perlmutter.rst b/docs/platforms/perlmutter.rst
@@ -120,6 +120,7 @@ Change the ``libE_specs`` in **run_libe_forces.py** as follows.
     # Persistent gen does not need resources
     ensemble.libE_specs = LibeSpecs(
         gen_on_manager=True,
+    )
 
 and run with::
 

diff --git a/docs/platforms/summit.rst b/docs/platforms/summit.rst
@@ -24,7 +24,7 @@ Begin by loading the Python 3 Anaconda module::
 
 You can now create and activate your own custom conda_ environment::
 
-    conda create --name myenv python=3.10
+    conda create --name myenv python=3.11
     export PYTHONNOUSERSITE=1 # Make sure get python from conda env
     . activate myenv
 

diff --git a/docs/tutorials/local_sine_tutorial.rst b/docs/tutorials/local_sine_tutorial.rst
@@ -22,7 +22,7 @@ need to write a new allocation function.
 
         .. code-block:: bash
 
-            python --version  # This should be >= 3.10
+            python --version  # This should be >= 3.11
 
         .. _Python: https://www.python.org/
 

diff --git a/pixi.lock b/pixi.lock
diff --git a/pyproject.toml b/pyproject.toml
@@ -19,7 +19,7 @@ dependencies = [
 
 description = "A Python toolkit for coordinating asynchronous and dynamic ensembles of calculations."
 name = "libensemble"
-requires-python = ">=3.10"
+requires-python = ">=3.11"
 license = { file = "LICENSE" }
 readme = "README.rst"
 
@@ -33,7 +33,6 @@ classifiers = [
   "Operating System :: Unix",
   "Operating System :: MacOS",
   "Programming Language :: Python :: 3",
-  "Programming Language :: Python :: 3.10",
   "Programming Language :: Python :: 3.11",
   "Programming Language :: Python :: 3.12",
   "Programming Language :: Python :: 3.13",
@@ -76,13 +75,11 @@ docs = ["docs", "basic"]
 dev = ["dev", "basic", "extra", "docs"]
 
 # CI environments
-py310 = ["py310", "basic"]
 py311 = ["py311", "basic"]
 py312 = ["py312", "basic"]
 py313 = ["py313", "basic"]
 py314 = ["py314", "basic"]
 
-py310e = ["py310", "py310e", "basic", "extra"]
 py311e = ["py311", "py311e", "basic", "extra"]
 py312e = ["py312", "py312e", "basic", "extra"]
 py313e = ["py313", "py313e", "basic", "extra"]
@@ -155,8 +152,6 @@ octave = ">=9.4.0,<11"
 pyzmq = ">=26.4.0,<28"
 
 # Python versions
-[tool.pixi.feature.py310.dependencies]
-python = "3.10.*"
 [tool.pixi.feature.py311.dependencies]
 python = "3.11.*"
 [tool.pixi.feature.py312.dependencies]
@@ -167,11 +162,6 @@ python = "3.13.*"
 python = "3.14.*"
 
 # ax-platform only works up to 3.13 on Linux
-[tool.pixi.feature.py310e.target.linux-64.dependencies]
-ax-platform = "==0.5.0"
-
-[tool.pixi.feature.py310e.dependencies]
-globus-compute-sdk = ">=4.3.0,<5"
 
 [tool.pixi.feature.py311e.target.linux-64.dependencies]
 ax-platform = "==0.5.0"
@@ -193,7 +183,7 @@ ax-platform = "==0.5.0"
 
 # Dependencies for libEnsemble
 [tool.pixi.dependencies]
-python = ">=3.10,<3.15"
+python = ">=3.11,<3.15"
 pip = ">=25.2,<26"
 setuptools = ">=80.8.0,<81"
 numpy = ">=2.2.6,<3"