Merge branch 'main' into fill-missing-chunks

Author: williamsnell

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -61,7 +61,7 @@ body:
       value: |
         ```python
         # /// script
-        # requires-python = ">=3.11"
+        # requires-python = ">=3.12"
         # dependencies = [
         #   "zarr@git+https://github.com/zarr-developers/zarr-python.git@main",
         # ]

.github/workflows/gpu_test.yml

@@ -27,7 +27,7 @@ jobs:
     runs-on: gpu-runner
     strategy:
       matrix:
-        python-version: ['3.11']
+        python-version: ['3.12']
 
     steps:
     - uses: actions/checkout@v6

.github/workflows/nightly_wheels.yml

@@ -23,7 +23,7 @@ jobs:
       - uses: actions/setup-python@v6
         name: Install Python
         with:
-          python-version: '3.13'
+          python-version: '3.14'
 
       - name: Install Hatch
         uses: pypa/hatch@257e27e51a6a5616ed08a39a408a21c35c9931bc

.github/workflows/releases.yml

@@ -31,7 +31,7 @@ jobs:
       - uses: actions/setup-python@v6
         name: Install Python
         with:
-          python-version: '3.11'
+          python-version: '3.12'
 
       - name: Install Hatch
         uses: pypa/hatch@257e27e51a6a5616ed08a39a408a21c35c9931bc

.github/workflows/test.yml

@@ -23,23 +23,23 @@ jobs:
 
     strategy:
       matrix:
-        python-version: ['3.11', '3.12', '3.13']
+        python-version: ['3.12', '3.13', '3.14']
         dependency-set: ["minimal", "optional"]
         os: ["ubuntu-latest"]
         include:
-          - python-version: '3.11'
+          - python-version: '3.12'
             dependency-set: 'optional'
             os: 'macos-latest'
 
-          - python-version: '3.13'
+          - python-version: '3.14'
             dependency-set: 'optional'
             os: 'macos-latest'
 
-          - python-version: '3.11'
+          - python-version: '3.12'
             dependency-set: 'optional'
             os: 'windows-latest'
 
-          - python-version: '3.13'
+          - python-version: '3.14'
             dependency-set: 'optional'
             os: 'windows-latest'
     runs-on: ${{ matrix.os }}
@@ -79,12 +79,12 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ['3.11', "3.13"]
+        python-version: ['3.12', "3.14"]
         dependency-set: ["upstream", "min_deps"]
         exclude:
-          - python-version: "3.13"
+          - python-version: "3.14"
             dependency-set: min_deps
-          - python-version: "3.11"
+          - python-version: "3.12"
             dependency-set: upstream
     steps:
     - uses: actions/checkout@v6

.pre-commit-config.yaml

@@ -7,7 +7,7 @@ ci:
 default_stages: [pre-commit, pre-push]
 
 default_language_version:
-  python: python3.11
+  python: python3.12
 
 repos:
   - repo: https://github.com/astral-sh/ruff-pre-commit
@@ -38,7 +38,7 @@ repos:
           - donfig
           - numcodecs
           - google-crc32c>=1.5
-          - numpy==2.1 # until https://github.com/numpy/numpy/issues/28034 is resolved
+          - numpy==2.1 # https://github.com/zarr-developers/zarr-python/issues/3780 + https://github.com/zarr-developers/zarr-python/issues/3688
           - typing_extensions
           - universal-pathlib
           - obstore>=0.5.1

changes/3546.misc.md

@@ -0,0 +1 @@
+Upgrade to spec0 compat (python 3.14 max, python 3.12 min).

changes/3830.misc.md

@@ -0,0 +1 @@
+Optimize the performance of indexing operations when using an array-like indexer on a single dimension.

changes/3833.misc.md

@@ -0,0 +1 @@
+Remove the warning that is emitted when any Numcodecs codec is instantiated.

docs/contributing.md

@@ -205,7 +205,7 @@ When submitting a pull request, coverage will also be collected across all suppo
 
 ### Documentation
 
-Docstrings for user-facing classes and functions should follow the [numpydoc](https://numpydoc.readthedocs.io/en/stable/format.html#docstring-standard) standard, including sections for Parameters and Examples. All examples should run and pass as doctests under Python 3.11.
+Docstrings for user-facing classes and functions should follow the [numpydoc](https://numpydoc.readthedocs.io/en/stable/format.html#docstring-standard) standard, including sections for Parameters and Examples. All examples should run and pass as doctests under Python 3.12.
 
 Zarr uses mkdocs for documentation, hosted on readthedocs.org. Documentation is written in the Markdown markup language (.md files) in the `docs` folder. The documentation consists both of prose and API documentation. All user-facing classes and functions are included in the API documentation, under the `docs/api` folder using the [mkdocstrings](https://mkdocstrings.github.io/) extension. Add any new public functions or classes to the relevant markdown file in `docs/api/*.md`. Any new features or important usage information should be included in the user-guide (`docs/user-guide`). Any changes should also be included as a new file in the `changes` directory.