feat!: ⬆️ support Python 3.12-3.14, default to 3.14

numpy 2.5 requires >=3.12, so a 3.11 floor silently capped users at
numpy 2.4.x; 3.11 is also security-only until Oct 2027. Raise the floor to
3.12 and add 3.14.

- requires-python >=3.12,<3.15 and matching classifiers.
- .python-version, docpages, copilot-setup-steps and the Sonar job use 3.14.
- Test matrix covers the range ends: 3.12 and 3.14.
- ruff target-version and pyright pythonVersion track the *oldest* supported
  version, so they stay one step behind the default at 3.12.

BREAKING CHANGE: Python 3.11 is no longer supported.

Author: Panadestein

.github/copilot-instructions.md

@@ -17,7 +17,7 @@
 
 ### Python Instructions
 
-- Write code to support Python 3.11, 3.12, 3.13.
+- Write code to support Python 3.12, 3.13, 3.14.
 - Write clear and concise comments for each function.
 - Ensure functions have descriptive names and include type hints.
 - Provide docstrings following PEP 257 conventions.

.github/workflows/copilot-setup-steps.yml

@@ -27,7 +27,7 @@ jobs:
         uses: astral-sh/setup-uv@v7
         with:
           enable-cache: true
-          python-version: "3.11"
+          python-version: "3.14"
 
       - name: Install package
         run: |

.github/workflows/docpages.yml

@@ -47,7 +47,7 @@ jobs:
         uses: astral-sh/setup-uv@v7
         with:
           enable-cache: true
-          python-version: "3.11"
+          python-version: "3.14"
 
       - name: Install package
         run: |

.github/workflows/test.yml

@@ -42,8 +42,8 @@ jobs:
           - ubuntu-latest
           - gpu-runner
         python-version:
-          - "3.11"
-          - "3.13"
+          - "3.12"
+          - "3.14"
         test-group:
           - "not slow and not perf"
 
@@ -148,7 +148,7 @@ jobs:
         uses: astral-sh/setup-uv@v7
         with:
           enable-cache: true
-          python-version: "3.13"
+          python-version: "3.14"
 
       - name: 'Install dependencies'
         run: |

.python-version

@@ -1 +1 @@
-3.11
+3.14

CONTRIBUTING.md

@@ -59,7 +59,7 @@ accuracy, not just the shapes.
 
 ## Code style
 
-The project targets Python 3.11+ and is checked with `ruff` under a strict rule
+The project targets Python 3.12+ and is checked with `ruff` under a strict rule
 set. Public functions carry type hints and Google-style docstrings without type
 annotations in the argument list. Keep lines within the configured limit and
 prefer clear code over clever code.

pyproject.toml

@@ -12,7 +12,7 @@ description = "Successive Randomized Compression."
 readme = "README.md"
 license = "Apache-2.0"
 license-files = ["LICENSE", "NOTICE"]
-requires-python = ">=3.11,<3.14"
+requires-python = ">=3.12,<3.15"
 classifiers = [
   "Development Status :: 3 - Alpha",
   "Intended Audience :: Science/Research",
@@ -21,9 +21,9 @@ classifiers = [
   "Programming Language :: Python",
   "Programming Language :: Python :: 3",
   "Programming Language :: Python :: 3 :: Only",
-  "Programming Language :: Python :: 3.11",
   "Programming Language :: Python :: 3.12",
   "Programming Language :: Python :: 3.13",
+  "Programming Language :: Python :: 3.14",
   "Topic :: Scientific/Engineering :: Chemistry",
   "Topic :: Scientific/Engineering :: Physics",
   "Topic :: Scientific/Engineering",
@@ -153,7 +153,8 @@ exclude_also = [
 
 exclude = ["docs", "src/src_method/_version.py"]
 
-target-version = "py311"
+# Lint against the oldest supported interpreter, not the default one.
+target-version = "py312"
 
 [tool.ruff.format]
 # enable auto-formatting of code examples in docstrings
@@ -267,7 +268,7 @@ required-imports = ["from __future__ import annotations"]
 
 
 [tool.pyright]
-pythonVersion = "3.11"
+pythonVersion = "3.12"
 
 include = ["src/src_method/**/*.py"]