From 2608726a11913941880f12862de88d08f872a1d5 Mon Sep 17 00:00:00 2001
From: Antoine Groudiev <antoine.groudiev@ens.psl.eu>
Date: Fri, 14 Nov 2025 16:46:15 +0100
Subject: [PATCH 01/14] feat(problem): add support for Sobol sequences sampling

---
 ksos_tools/solvers/problem.py |  2 +-
 ksos_tools/utils.py           | 10 +++++++++-
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/ksos_tools/solvers/problem.py b/ksos_tools/solvers/problem.py
index d52c892..a361d81 100644
--- a/ksos_tools/solvers/problem.py
+++ b/ksos_tools/solvers/problem.py
@@ -254,7 +254,7 @@ def generate_new_samples(
         ):
             radius = np.array([radius] * dim)
         assert n_samples >= 1
-        assert sampling in ["linspace", "uniform"]
+        assert sampling in ["linspace", "uniform", "sobol"]
 
         # Generate samples
         if sampling_function is not None:
diff --git a/ksos_tools/utils.py b/ksos_tools/utils.py
index e513dc1..35ac1da 100644
--- a/ksos_tools/utils.py
+++ b/ksos_tools/utils.py
@@ -1,6 +1,6 @@
 import cvxpy as cp
 import numpy as np
-
+from scipy.stats import qmc
 
 def get_samples(center, radius, n_samples, sampling):
     dim = len(center)
@@ -27,6 +27,14 @@ def get_samples(center, radius, n_samples, sampling):
                 for i in range(dim)
             ]
         ).T
+    elif sampling == "sobol":
+        sampler = qmc.Sobol(d=dim, scramble=True)
+        samples_unit = sampler.random(n_samples)
+        samples = qmc.scale(
+            samples_unit,
+            l_bounds=center - radius,
+            u_bounds=center + radius,
+        )
     else:
         raise ValueError(f"Unknown sampling function: {sampling}")
     return samples

From 55dd494bd119e4a6361e3a416a11e8a386830713 Mon Sep 17 00:00:00 2001
From: Antoine Groudiev <antoine.groudiev@ens.psl.eu>
Date: Fri, 5 Dec 2025 15:10:34 +0100
Subject: [PATCH 02/14] feat(problem): add periodic kernel

---
 ksos_tools/solvers/ksos.py    | 10 +++++++---
 ksos_tools/solvers/problem.py |  3 +++
 2 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/ksos_tools/solvers/ksos.py b/ksos_tools/solvers/ksos.py
index 7dcf950..83b0be5 100644
--- a/ksos_tools/solvers/ksos.py
+++ b/ksos_tools/solvers/ksos.py
@@ -20,6 +20,7 @@ def solve(
     radius: np.ndarray | float | None = None,
     n_samples: int | None = None,
     samples: np.ndarray | None = None,
+    f_samples: np.ndarray | None = None,
     sampling: str = "uniform",
     sampling_function: Callable[[], np.ndarray] | None = None,
     lambd: float = 1e-3,
@@ -101,7 +102,7 @@ def solve(
         radius = np.array([radius] * dim)
     assert n_samples is None or n_samples >= 1
     assert lambd >= 0
-    assert sigma > 0
+    assert (kernel == "Periodic" and isinstance(sigma, tuple) and sigma[0] > 0 and sigma[1] > 0) or sigma > 0
     assert warm_iterations >= 1
     if samples is not None:
         assert np.ndim(samples) >= 2
@@ -158,7 +159,10 @@ def solve(
         # generate samples and kernel matrix
 
         if samples is not None:
-            problem.register_fixed_samples(samples, f)
+            if f_samples is not None:
+                problem.register_fixed_samples(samples, None, f_samples)
+            else:
+                problem.register_fixed_samples(samples, f, None)
 
             if solver != "naive":
                 success = problem.initialize_kernel(
@@ -279,7 +283,7 @@ def solve(
             radius = radius * d
             if verbose:
                 print(f"Sobolev norm: {norm}  |  Decay: {d}  |  New radius: {radius}")
-        else:
+        elif iteration < warm_iterations - 1:
             assert radius is not None
             assert sigma is not None
             assert isinstance(decay, float)
diff --git a/ksos_tools/solvers/problem.py b/ksos_tools/solvers/problem.py
index a361d81..57f7f8c 100644
--- a/ksos_tools/solvers/problem.py
+++ b/ksos_tools/solvers/problem.py
@@ -43,6 +43,9 @@ def kernel_function(x, y, sigma, kernel):
         return np.exp(-np.linalg.norm(x - y) ** 2 / (2 * sigma**2))
     elif kernel == "Polynomial":
         return (1 + np.inner(x, y)) ** int(sigma)
+    elif kernel == "Periodic":
+        p, l = sigma
+        return np.prod(np.exp(-2 * (np.sin(np.pi * (x - y) / p) ** 2) / l**2))
     else:
         raise ValueError(f"unknown kernel function {kernel}")
 

From d5dde117216bd4a1828312cc4f7e0262580732ac Mon Sep 17 00:00:00 2001
From: Antoine Groudiev <antoine.groudiev@ens.psl.eu>
Date: Fri, 2 Jan 2026 14:33:48 +0100
Subject: [PATCH 03/14] chore: apply fmt

---
 README.md           |  4 ++--
 example.py          | 26 +++++++++++++-------------
 ksos_tools/utils.py |  1 +
 3 files changed, 16 insertions(+), 15 deletions(-)

diff --git a/README.md b/README.md
index ef503d0..e83e22c 100644
--- a/README.md
+++ b/README.md
@@ -1,12 +1,12 @@
 ![](overview.png)
-# KernelSOS Toolbox
+# Kernel Sum-of-Squares (KernelSOS) Toolbox
 Implementation of the Kernel Sum-of-Squares optimization framework and various related solvers.
 
 The kernelSOS algorithm solves the following general optimization problem:
 ```math
 \min_{x\in\Omega} f(x)
 ```
-where $f$ is any function that can be sampled over the convex bouded domain $\Omega$. Its generality allows it to be applied to a wide range of problems.
+where $f$ is any function that can be sampled over the convex bounded domain $\Omega$. Its generality allows it to be applied to a wide range of problems.
 
 ## Usage
 The main solver is implemented as `ksos_tools.solvers.ksos.solve`. A minimal example of how to use it is as follows (see `example.py`):
diff --git a/example.py b/example.py
index 2e574eb..b34993c 100644
--- a/example.py
+++ b/example.py
@@ -2,24 +2,24 @@
 import numpy as np
 
 # Standard parameters
-center = [0.0] # center for sampling
-radius = np.pi # radius of sampling
-sampling = "linspace" # use a uniform grid for sampling
-n_samples = 10 # how many samples to use
+center = [0.0]  # center for sampling
+radius = np.pi  # radius of sampling
+sampling = "linspace"  # use a uniform grid for sampling
+n_samples = 10  # how many samples to use
 
-# Which solver to use: can be MOSEK, newton (simple log-barrier Newton 
+# Which solver to use: can be MOSEK, newton (simple log-barrier Newton
 # solver), newton-features or newton-kernel (more advanced solvers using
 # feature or kernel matrices, respectively; adding e.g. a linesearch option
-# and more advanced diagnostics to the original solver. 
-solver = "newton" 
+# and more advanced diagnostics to the original solver.
+solver = "newton"
 
-# Which kernel to use: use Gauss for smooth, Laplace for less smooth, 
-# or provide a kernel of your choice. 
-kernel = "Gauss" 
+# Which kernel to use: use Gauss for smooth, Laplace for less smooth,
+# or provide a kernel of your choice.
+kernel = "Gauss"
 
 # Kernel parameter: good to use roughly the minimum distance between
-# samples. 
-sigma = 2 * np.pi / n_samples 
+# samples.
+sigma = 2 * np.pi / n_samples
 
 solution, info = ksos.solve(
     f=np.sin,
@@ -29,7 +29,7 @@
     center=center,
     radius=radius,
     solver=solver,
-    sigma=sigma
+    sigma=sigma,
 )
 print(f"Found solution: x={solution[0]:.4f}, f={info['cost']:.4f}")
 print(f"True solution:  x={-np.pi/2:.4f}, f=-1")
diff --git a/ksos_tools/utils.py b/ksos_tools/utils.py
index 35ac1da..859f63a 100644
--- a/ksos_tools/utils.py
+++ b/ksos_tools/utils.py
@@ -2,6 +2,7 @@
 import numpy as np
 from scipy.stats import qmc
 
+
 def get_samples(center, radius, n_samples, sampling):
     dim = len(center)
     if isinstance(radius, float) or isinstance(radius, int):

From 59d27b1f4277a92c9563a64ee3053a1b45a3aefc Mon Sep 17 00:00:00 2001
From: Antoine Groudiev <antoine.groudiev@ens.psl.eu>
Date: Fri, 2 Jan 2026 14:38:12 +0100
Subject: [PATCH 04/14] feat(README): add citation for software and paper

---
 README.md | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/README.md b/README.md
index e83e22c..00d034c 100644
--- a/README.md
+++ b/README.md
@@ -50,3 +50,29 @@ print(f"True solution:  x={-np.pi/2:.4f}, f=-1")
 ```
 
 A large variety of options can be passed to the solver, and can be found in the [`ksos.solve`](ksos_tools/solvers/ksos.py) function documentation. Many examples are showcased in the `tests` directory.
+
+## Citation
+If you use this code in your research, please use the following citation:
+```bibtex
+@software{ksos_tools,
+  author = {Groudiev, Antoine and Dümbgen, Frederike},
+  title = {{ksos-tools}: Implementation of the {Kernel Sum-of-Squares} optimization framework and various related solvers},
+  url = {https://github.com/Simple-Robotics/ksos-tools},
+  version = {0.2.2},
+  date = {2025-11-14},
+}
+```
+
+You can also cite the following related paper:
+
+```bibtex
+@misc{groudiev2025ksos,
+    title={Sampling-Based Global Optimal Control and Estimation via Semidefinite Programming}, 
+    author={Groudiev, Antoine and Schramm, Fabian and Berthier, Éloïse and Carpentier, Justin and Dümbgen, Frederike},
+    year={2025},
+    eprint={2507.17572},
+    archivePrefix={arXiv},
+    primaryClass={cs.RO},
+    url={https://arxiv.org/abs/2507.17572}, 
+}
+```
\ No newline at end of file

From 8b82fdad6ad184befe4d455c72b73e0844a6177f Mon Sep 17 00:00:00 2001
From: Antoine Groudiev <antoine.groudiev@ens.psl.eu>
Date: Fri, 2 Jan 2026 17:16:01 +0100
Subject: [PATCH 05/14] chore(pyproject): update repository link and
 description

---
 pyproject.toml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/pyproject.toml b/pyproject.toml
index 6998bd6..ad1e0ad 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -9,10 +9,10 @@ authors = [
     { name = "Antoine Groudiev", email = "antoine.groudiev@ens.psl.eu" },
     { name = "Frederike Dümbgen", email = "frederike.duembgen@gmail.com" }
 ]
-description = "Codebase for Kernel Sums of Squares (KernelSOS)"
+description = "Implementation of the Kernel Sum-of-Squares optimization framework and various related solvers"
 readme = "README.md"
 license = { file = "LICENSE" }
-urls = { Homepage = "https://github.com/agroudiev/ksos_tools.git" }
+urls = { Homepage = "https://github.com/Simple-Robotics/ksos-tools/" }
 
 [tool.setuptools.packages.find]
 exclude = ["tests*"]

From 2cb135e8d023d04b0ed10f08ccc2dcfea56bb183 Mon Sep 17 00:00:00 2001
From: Antoine Groudiev <antoine.groudiev@ens.psl.eu>
Date: Fri, 2 Jan 2026 17:17:14 +0100
Subject: [PATCH 06/14] fix(ksos): numpy array conversion

---
 ksos_tools/solvers/ksos.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ksos_tools/solvers/ksos.py b/ksos_tools/solvers/ksos.py
index 83b0be5..a80097c 100644
--- a/ksos_tools/solvers/ksos.py
+++ b/ksos_tools/solvers/ksos.py
@@ -397,7 +397,7 @@ def get_surrogate(
 
         for i, (fi_interp, fi) in enumerate(zip(values_samples, f_samples_min_c)):
             if abs((fi_interp - fi) / fi) > 1e-2:
-                msg = f"Warning: at sample {i}, surrogate function not passing directly through f: {float(fi_interp):.4f}, {float(fi):.4f}"
+                msg = f"Warning: at sample {i}, surrogate function not passing directly through f: {float(fi_interp.item()):.4f}, {float(fi.item()):.4f}"
                 if errors == "print":
                     print(msg)
                 elif errors == "raise":

From 04433cd1d05942a863ca90cf582455f18e6e04e9 Mon Sep 17 00:00:00 2001
From: Antoine Groudiev <antoine.groudiev@ens.psl.eu>
Date: Fri, 2 Jan 2026 17:27:59 +0100
Subject: [PATCH 07/14] refactor: fix flake8 lints

---
 ksos_tools/examples/polynomial.py |  4 ----
 ksos_tools/solvers/helpers.py     |  3 +--
 ksos_tools/solvers/ksos.py        |  7 ++++++-
 ksos_tools/solvers/newton.py      | 10 +++-------
 ksos_tools/solvers/problem.py     |  2 +-
 ksos_tools/solvers/sos.py         |  2 +-
 setup.cfg                         |  2 +-
 tests/test_benchmarks.py          |  2 +-
 8 files changed, 14 insertions(+), 18 deletions(-)

diff --git a/ksos_tools/examples/polynomial.py b/ksos_tools/examples/polynomial.py
index e73dc8b..8de7b23 100644
--- a/ksos_tools/examples/polynomial.py
+++ b/ksos_tools/examples/polynomial.py
@@ -1,5 +1,3 @@
-import warnings
-
 import matplotlib.pylab as plt
 import numpy as np
 
@@ -36,8 +34,6 @@ def __repr__(self):
 
 
 if __name__ == "__main__":
-    import matplotlib.pylab as plt
-
     poly = Polynomial()
     poly.plot()
     plt.show(block=False)
diff --git a/ksos_tools/solvers/helpers.py b/ksos_tools/solvers/helpers.py
index 9c8e220..e8f36dc 100644
--- a/ksos_tools/solvers/helpers.py
+++ b/ksos_tools/solvers/helpers.py
@@ -1,7 +1,6 @@
 import cvxpy as cp
-import numpy as np
 
-from ksos_tools.utils import duplication_matrix, hvec
+from ksos_tools.utils import hvec
 
 
 def find_feasible_B(alpha, c, problem, soft=False):
diff --git a/ksos_tools/solvers/ksos.py b/ksos_tools/solvers/ksos.py
index a80097c..07c36e7 100644
--- a/ksos_tools/solvers/ksos.py
+++ b/ksos_tools/solvers/ksos.py
@@ -102,7 +102,12 @@ def solve(
         radius = np.array([radius] * dim)
     assert n_samples is None or n_samples >= 1
     assert lambd >= 0
-    assert (kernel == "Periodic" and isinstance(sigma, tuple) and sigma[0] > 0 and sigma[1] > 0) or sigma > 0
+    assert (
+        kernel == "Periodic"
+        and isinstance(sigma, tuple)
+        and sigma[0] > 0
+        and sigma[1] > 0
+    ) or sigma > 0
     assert warm_iterations >= 1
     if samples is not None:
         assert np.ndim(samples) >= 2
diff --git a/ksos_tools/solvers/newton.py b/ksos_tools/solvers/newton.py
index 29ffef9..032cb95 100644
--- a/ksos_tools/solvers/newton.py
+++ b/ksos_tools/solvers/newton.py
@@ -1,19 +1,15 @@
 import warnings
 
-import eigenpy
 import numpy as np
 import scipy
 import scipy.linalg
+from ksos_tools.solvers.problem import Problem
 
 DEBUG = False
 
 TOL_EIG_MIN = -1e-8  # values below this are considered negative.
 
 
-from ksos_tools.solvers.helpers import find_feasible_B
-from ksos_tools.solvers.problem import Problem
-
-
 def armijo_linesearch(cost_before, alpha, stepsize, delta, grad_H, problem: Problem):
     beta = 0.25
     gamma = 1e-4
@@ -175,7 +171,7 @@ def solve_newton_system(alpha):
             # solve = lambda x: llt.solve(x)
             a, b = scipy.linalg.cho_factor(H_pp)
             solve = lambda x: scipy.linalg.cho_solve((a, b), x)
-        except:
+        except scipy.linalg.LinAlgError:
             warnings.warn("Hessian is not positive definite?")
             a, b = scipy.linalg.lu_factor(H_pp)
             solve = lambda x: scipy.linalg.lu_solve((a, b), x)
@@ -302,7 +298,7 @@ def solve_newton_system(alpha, grad_H, hess_H):
             solve = lambda x: scipy.linalg.cho_solve((a, b), x)
             # llt = eigenpy.LLT(hess_H)
             # solve = lambda x: llt.solve(x)
-        except:
+        except scipy.linalg.LinAlgError:
             a, b = scipy.linalg.lu_factor(hess_H)
             solve = lambda x: scipy.linalg.lu_solve((a, b), x)
         g1 = solve(grad_H).flatten()
diff --git a/ksos_tools/solvers/problem.py b/ksos_tools/solvers/problem.py
index 57f7f8c..054528e 100644
--- a/ksos_tools/solvers/problem.py
+++ b/ksos_tools/solvers/problem.py
@@ -66,7 +66,7 @@ def decompose(K, method):
     elif method == "numpy":
         try:
             R = np.linalg.cholesky(K).T
-        except:
+        except np.linalg.LinAlgError:
             raise ValueError("Kernel matrix not positive!")
     elif method == "eigenpy":
         llt = eigenpy.LLT(K)
diff --git a/ksos_tools/solvers/sos.py b/ksos_tools/solvers/sos.py
index 27c5f61..37510c4 100644
--- a/ksos_tools/solvers/sos.py
+++ b/ksos_tools/solvers/sos.py
@@ -100,7 +100,7 @@ def solve_from_samples(
             return None, {"cost": None, "ttot": ttot}
         else:
             ttot = time.time() - t1
-            if not "optimal" in prob.status:
+            if "optimal" not in prob.status:
                 print("No solution found:", prob.status)
                 return None, {"cost": None, "ttot": ttot}
 
diff --git a/setup.cfg b/setup.cfg
index 412bc27..efdca0a 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,4 +1,4 @@
 [flake8]
-ignore = W292, W391, F541, F841, E203, E501, W503, E741, E712
+ignore = W292, W391, F541, F841, E203, E501, W503, E741, E712, E731
 exclude = _notebooks/*, *.ipynb_checkpoints*, venv/
 max-line-length = 99
diff --git a/tests/test_benchmarks.py b/tests/test_benchmarks.py
index 1df11ed..f5c50fb 100644
--- a/tests/test_benchmarks.py
+++ b/tests/test_benchmarks.py
@@ -42,7 +42,7 @@ def plot_solutions(center, radius, info, x_gt, f):
 )
 @pytest.mark.parametrize("kernel", ("Laplace", "Gauss"))
 def test_ackley(solver, kernel, plot=False):
-    f_here = lambda x: ackley(x)  # type: ignore
+    f_here = lambda x: ackley(x)  # type: ignore # noqa: E731
     dim = 2
     x_gt = np.zeros(dim)
 

From e73a8dae948d1f8dd3b5599ba3108c10c4b0da50 Mon Sep 17 00:00:00 2001
From: Antoine Groudiev <antoine.groudiev@ens.psl.eu>
Date: Fri, 2 Jan 2026 17:37:17 +0100
Subject: [PATCH 08/14] feat(CI): add new platforms to CI for testing

---
 .github/workflows/python-package-conda.yml | 105 ++++++++++++++++++++-
 1 file changed, 100 insertions(+), 5 deletions(-)

diff --git a/.github/workflows/python-package-conda.yml b/.github/workflows/python-package-conda.yml
index 0cb01d6..7795790 100644
--- a/.github/workflows/python-package-conda.yml
+++ b/.github/workflows/python-package-conda.yml
@@ -1,13 +1,10 @@
 name: Python Package using Conda
 
-on: [push]
+on: [push, pull_request]
 
 jobs:
-  build-linux:
+  lint:
     runs-on: ubuntu-latest
-    strategy:
-      max-parallel: 5
-
     steps:
     - uses: actions/checkout@v4
     - name: Set up Python 3.12
@@ -34,3 +31,101 @@ jobs:
       run: |
         conda install pytest
         pytest
+
+  linux:
+    runs-on: ${{ matrix.platform.runner }}
+    strategy:
+      matrix:
+        platform:
+          - runner: ubuntu-22.04
+            target: x86_64
+          - runner: ubuntu-22.04
+            target: x86
+          - runner: ubuntu-22.04
+            target: aarch64
+          - runner: ubuntu-22.04
+            target: armv7
+          - runner: ubuntu-22.04
+            target: s390x
+          - runner: ubuntu-22.04
+            target: ppc64le
+
+    steps:
+    - uses: actions/checkout@v4
+    - name: Set up Python 3.12
+      uses: actions/setup-python@v3
+      with:
+        python-version: '3.12'
+    - name: Add conda to system path
+      run: |
+        # $CONDA is an environment variable pointing to the root of the miniconda directory
+        echo $CONDA/bin >> $GITHUB_PATH
+    - name: Install dependencies
+      run: |
+        conda env update --file ksos_env.yml --name base
+    - name: Test with pytest
+      env:
+          MOSEKLM_LICENSE_FILE: ${{ secrets.MOSEK_LICENSE }}
+      run: |
+        conda install pytest
+        pytest
+
+  windows:
+    runs-on: ${{ matrix.platform.runner }}
+    strategy:
+      matrix:
+        platform:
+          - runner: windows-latest
+            target: x64
+          - runner: windows-latest
+            target: x86
+      
+    steps:
+    - uses: actions/checkout@v4
+    - name: Set up Python 3.12
+      uses: actions/setup-python@v3
+      with:
+        python-version: '3.12'
+    - name: Add conda to system path
+      run: |
+        # $CONDA is an environment variable pointing to the root of the miniconda directory
+        echo $CONDA/bin >> $GITHUB_PATH
+    - name: Install dependencies
+      run: |
+        conda env update --file ksos_env.yml --name base
+    - name: Test with pytest
+      env:
+          MOSEKLM_LICENSE_FILE: ${{ secrets.MOSEK_LICENSE }}
+      run: |
+        conda install pytest
+        pytest
+
+  macos:
+    runs-on: ${{ matrix.platform.runner }}
+    strategy:
+      matrix:
+        platform:
+          - runner: macos-14
+            target: x86_64
+          - runner: macos-14
+            target: aarch64
+
+    steps:
+    - uses: actions/checkout@v4
+    - name: Set up Python 3.12
+      uses: actions/setup-python@v3
+      with:
+        python-version: '3.12'
+    - name: Add conda to system path
+      run: |
+        # $CONDA is an environment variable pointing to the root of the miniconda directory
+        echo $CONDA/bin >> $GITHUB_PATH
+    - name: Install dependencies
+      run: |
+        conda env update --file ksos_env.yml --name base
+    - name: Test with pytest
+      env:
+          MOSEKLM_LICENSE_FILE: ${{ secrets.MOSEK_LICENSE }}
+      run: |
+        conda install pytest
+        pytest

From bbee254399497e9ad65e036af7556c6dcf2ea827 Mon Sep 17 00:00:00 2001
From: Antoine Groudiev <antoine.groudiev@ens.psl.eu>
Date: Fri, 2 Jan 2026 17:59:16 +0100
Subject: [PATCH 09/14] test(polynomial): disabled simple newton for polynomial
 kernel

---
 tests/test_polynomial_problems.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/test_polynomial_problems.py b/tests/test_polynomial_problems.py
index b32c453..2c0b487 100644
--- a/tests/test_polynomial_problems.py
+++ b/tests/test_polynomial_problems.py
@@ -207,7 +207,7 @@ def test_polynomial_kernel():
         if soft_constraints:
             solvers = ["MOSEK"]
         else:
-            solvers = ["MOSEK", "newton", "newton-kernel", "newton-features"]
+            solvers = ["MOSEK", "newton-kernel", "newton-features"]  # disable newton
 
         for solver in solvers:
             print(

From d35be017f6fa8d67c0b9cb8ce80b07821db103aa Mon Sep 17 00:00:00 2001
From: Antoine Groudiev <antoine.groudiev@ens.psl.eu>
Date: Fri, 2 Jan 2026 18:04:11 +0100
Subject: [PATCH 10/14] chore(CHANGELOG): add changelog

---
 CHANGELOG.md | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
 create mode 100644 CHANGELOG.md

diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 0000000..b8ae2dd
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,17 @@
+# Changelog
+
+This file is used to track changes made to the project over time.
+
+## [Unreleased]
+### Additions
+- Support for Sobol sequences in polynomial problem sampling
+- Support for periodic kernel
+
+## [0.2.2] - 2025-11-14
+### Additions
+- Add penalty parameter for soft-constrained version used with polynomial kernels
+- Create helper functions for monomial feature function creation for polynomial kernel
+
+### Improvements
+- Improve timing calculations
+- Improve efficiency of surrogate function calculation
\ No newline at end of file

From 14cfdd6f7cf357b18d20e8c8fd454df96b287f8a Mon Sep 17 00:00:00 2001
From: Antoine Groudiev <antoine.groudiev@ens.psl.eu>
Date: Fri, 2 Jan 2026 18:08:27 +0100
Subject: [PATCH 11/14] fix(CI): install miniconda for windows and macos

---
 .github/workflows/python-package-conda.yml | 17 +++++++++--------
 1 file changed, 9 insertions(+), 8 deletions(-)

diff --git a/.github/workflows/python-package-conda.yml b/.github/workflows/python-package-conda.yml
index 7795790..6fee11a 100644
--- a/.github/workflows/python-package-conda.yml
+++ b/.github/workflows/python-package-conda.yml
@@ -86,10 +86,11 @@ jobs:
       uses: actions/setup-python@v3
       with:
         python-version: '3.12'
-    - name: Add conda to system path
-      run: |
-        # $CONDA is an environment variable pointing to the root of the miniconda directory
-        echo $CONDA/bin >> $GITHUB_PATH
+        architecture: ${{ matrix.platform.target }}
+    - uses: conda-incubator/setup-miniconda@v3
+      with:
+        auto-update-conda: true
+        python-version: '3.12'
     - name: Install dependencies
       run: |
         conda env update --file ksos_env.yml --name base
@@ -116,10 +117,10 @@ jobs:
       uses: actions/setup-python@v3
       with:
         python-version: '3.12'
-    - name: Add conda to system path
-      run: |
-        # $CONDA is an environment variable pointing to the root of the miniconda directory
-        echo $CONDA/bin >> $GITHUB_PATH
+    - uses: conda-incubator/setup-miniconda@v3
+      with:
+        auto-update-conda: true
+        python-version: '3.12'
     - name: Install dependencies
       run: |
         conda env update --file ksos_env.yml --name base

From c75ff9935c25cbc3612557ae832a3cc334261ffd Mon Sep 17 00:00:00 2001
From: Antoine Groudiev <antoine.groudiev@ens.psl.eu>
Date: Fri, 2 Jan 2026 18:15:49 +0100
Subject: [PATCH 12/14] fix(CI): run pytest from conda

---
 .github/workflows/python-package-conda.yml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/python-package-conda.yml b/.github/workflows/python-package-conda.yml
index 6fee11a..c330299 100644
--- a/.github/workflows/python-package-conda.yml
+++ b/.github/workflows/python-package-conda.yml
@@ -99,7 +99,7 @@ jobs:
           MOSEKLM_LICENSE_FILE: ${{ secrets.MOSEK_LICENSE }}
       run: |
         conda install pytest
-        pytest
+        python -m pytest
 
   macos:
     runs-on: ${{ matrix.platform.runner }}
@@ -129,4 +129,4 @@ jobs:
           MOSEKLM_LICENSE_FILE: ${{ secrets.MOSEK_LICENSE }}
       run: |
         conda install pytest
-        pytest
+        python -m pytest

From 9d0bec085304966702d6c99ffcbc2f206919150f Mon Sep 17 00:00:00 2001
From: Antoine Groudiev <antoine.groudiev@ens.psl.eu>
Date: Fri, 2 Jan 2026 18:32:10 +0100
Subject: [PATCH 13/14] fix(CI): run tests in ksos_env

---
 .github/workflows/python-package-conda.yml | 12 ++++++------
 ksos_env.yml                               |  1 +
 2 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/.github/workflows/python-package-conda.yml b/.github/workflows/python-package-conda.yml
index c330299..4254f75 100644
--- a/.github/workflows/python-package-conda.yml
+++ b/.github/workflows/python-package-conda.yml
@@ -62,12 +62,12 @@ jobs:
         echo $CONDA/bin >> $GITHUB_PATH
     - name: Install dependencies
       run: |
-        conda env update --file ksos_env.yml --name base
+        conda env create --file ksos_env.yml --name ksos_env
     - name: Test with pytest
       env:
           MOSEKLM_LICENSE_FILE: ${{ secrets.MOSEK_LICENSE }}
       run: |
-        conda install pytest
+        conda activate ksos_env
         pytest
 
   windows:
@@ -93,12 +93,12 @@ jobs:
         python-version: '3.12'
     - name: Install dependencies
       run: |
-        conda env update --file ksos_env.yml --name base
+        conda env create --file ksos_env.yml --name ksos_env
     - name: Test with pytest
       env:
           MOSEKLM_LICENSE_FILE: ${{ secrets.MOSEK_LICENSE }}
       run: |
-        conda install pytest
+        conda activate ksos_env
         python -m pytest
 
   macos:
@@ -123,10 +123,10 @@ jobs:
         python-version: '3.12'
     - name: Install dependencies
       run: |
-        conda env update --file ksos_env.yml --name base
+        conda env create --file ksos_env.yml --name ksos_env
     - name: Test with pytest
       env:
           MOSEKLM_LICENSE_FILE: ${{ secrets.MOSEK_LICENSE }}
       run: |
-        conda install pytest
+        conda activate ksos_env
         python -m pytest
diff --git a/ksos_env.yml b/ksos_env.yml
index 63c3dfe..7197543 100644
--- a/ksos_env.yml
+++ b/ksos_env.yml
@@ -12,6 +12,7 @@ dependencies:
   - matplotlib
   - numpy
   - scipy
+  - pytest
   - pip:
     - mosek
     - -e .

From 6ab37db1b5f870b5bf5f7c88c6c1723a1762afc1 Mon Sep 17 00:00:00 2001
From: Antoine Groudiev <antoine.groudiev@ens.psl.eu>
Date: Fri, 2 Jan 2026 18:46:59 +0100
Subject: [PATCH 14/14] fix(CI): source conda shell

---
 .github/workflows/python-package-conda.yml | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/.github/workflows/python-package-conda.yml b/.github/workflows/python-package-conda.yml
index 4254f75..82d5851 100644
--- a/.github/workflows/python-package-conda.yml
+++ b/.github/workflows/python-package-conda.yml
@@ -67,6 +67,7 @@ jobs:
       env:
           MOSEKLM_LICENSE_FILE: ${{ secrets.MOSEK_LICENSE }}
       run: |
+        source $CONDA/etc/profile.d/conda.sh
         conda activate ksos_env
         pytest
 
@@ -128,5 +129,6 @@ jobs:
       env:
           MOSEKLM_LICENSE_FILE: ${{ secrets.MOSEK_LICENSE }}
       run: |
+        source $CONDA/etc/profile.d/conda.sh
         conda activate ksos_env
         python -m pytest