Merge pull request #1 from K-Meech/km/v2-v2-conversion-review

Merge changes from review

Author: K-Meech

.github/ISSUE_TEMPLATE/release-checklist.md

@@ -25,6 +25,7 @@ assignees: ''
   - [ ] All tests pass in the ["GPU Tests" workflow](https://github.com/zarr-developers/zarr-python/actions/workflows/gpu_test.yml).
   - [ ] All tests pass in the ["Hypothesis" workflow](https://github.com/zarr-developers/zarr-python/actions/workflows/hypothesis.yaml).
   - [ ] Check that downstream libraries work well (maintainers can make executive decisions about whether all checks are required for this release).
+    - [ ] numcodecs
     - [ ] Xarray (@jhamman @dcherian @TomNicholas)
         - Zarr's upstream compatibility is tested via the [Upstream Dev CI worklow](https://github.com/pydata/xarray/actions/workflows/upstream-dev-ci.yaml).
         - Click on the most recent workflow and check that the `upstream-dev` job has run and passed. `upstream-dev` is not run on all all workflow runs.

.github/workflows/check_changelogs.yml

@@ -0,0 +1,18 @@
+name: Check changelog entries
+
+on:
+  pull_request:
+
+jobs:
+  check-changelogs:
+    name: Check changelog entries
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+
+      - name: Install uv
+        uses: astral-sh/setup-uv@e92bafb6253dcd438e0484186d7669ea7a8ca1cc # v6.4.3
+
+      - name: Check changelog entries
+        run: uv run --no-sync python ci/check_changelog_entries.py

LICENSE.txt

@@ -1,6 +1,6 @@
 The MIT License (MIT)
 
-Copyright (c) 2015-2024 Zarr Developers <https://github.com/zarr-developers>
+Copyright (c) 2015-2025 Zarr Developers <https://github.com/zarr-developers>
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

changes/3112.bugfix.1.rst

@@ -0,0 +1 @@
+Creating a Zarr format 2 array with the ``order`` keyword argument no longer raises a warning.

changes/3112.bugfix.2.rst

@@ -0,0 +1 @@
+Creating a Zarr format 3 array with the ``order`` argument now conistently ignores this argument and raises a warning.

changes/3112.bugfix.3.rst

@@ -0,0 +1,2 @@
+When using ``from_array`` to copy a Zarr format 2 array to a Zarr format 3 array, if the memory order of the input array is ``"F"`` a warning is raised and the order ignored.
+This is because Zarr format 3 arrays are always stored in "C" order.

changes/3112.bugfix.4.rst

@@ -0,0 +1 @@
+The ``config`` argument to `zarr.create` (and functions that create arrays) is now used - previously it had no effect.

changes/3112.bugfix.rst

@@ -0,0 +1 @@
+Fixed the error message when passing both ``config`` and ``write_empty_chunks`` arguments to reflect the current behaviour (``write_empty_chunks`` takes precedence).

changes/3227.feature.rst

@@ -0,0 +1 @@
+Add lightweight implementations of .getsize() and .getsize_prefix() for ObjectStore.

changes/3251.bugfix.rst

@@ -0,0 +1 @@
+Ensure that all abstract methods of ``ZDType`` raise a ``NotImplementedError`` when invoked.