Merge remote-tracking branch 'upstream/main' into gpu-codecs

Author: TomAugspurger

.github/workflows/test.yml

@@ -21,20 +21,20 @@ jobs:
     strategy:
       matrix:
         python-version: ['3.11', '3.12', '3.13']
-        numpy-version: ['1.25', '2.2']
+        numpy-version: ['1.26', '2.2']
         dependency-set: ["minimal", "optional"]
         os: ["ubuntu-latest"]
         include:
           - python-version: '3.11'
-            numpy-version: '1.25'
+            numpy-version: '1.26'
             dependency-set: 'optional'
             os: 'macos-latest'
           - python-version: '3.13'
             numpy-version: '2.2'
             dependency-set: 'optional'
             os: 'macos-latest'
           - python-version: '3.11'
-            numpy-version: '1.25'
+            numpy-version: '1.26'
             dependency-set: 'optional'
             os: 'windows-latest'
           - python-version: '3.13'

changes/3138.feature.rst

@@ -0,0 +1,16 @@
+Removes default chunk encoding settings (filters, serializer, compressors) from the global
+configuration object.
+
+This removal is justified on the basis that storing chunk encoding settings in the config required
+a brittle, confusing, and inaccurate categorization of array data types, which was particularly
+unsuitable after the recent addition of new data types that didn't fit naturally into the
+pre-existing categories.
+
+The default chunk encoding is the same (Zstandard compression, and the required object codecs for
+variable length data types), but the chunk encoding is now generated by functions that cannot be
+reconfigured at runtime. Users who relied on setting the default chunk encoding via the global configuration object should
+instead specify the desired chunk encoding explicitly when creating an array.
+
+This change also adds an extra validation step to the creation of Zarr V2 arrays, which ensures that
+arrays with a ``VariableLengthUTF8`` or ``VariableLengthBytes`` data type cannot be created without the
+correct "object codec".

changes/3140.bugfix.rst

@@ -0,0 +1,3 @@
+Fix the type of ``ArrayV2Metadata.codec`` to constrain it to ``numcodecs.abc.Codec | None``.
+Previously the type was more permissive, allowing objects that can be parsed into Codecs (e.g., the codec name).
+The constructor of ``ArrayV2Metadata`` still allows the permissive input when creating new objects.

changes/3151.bugfix.rst

@@ -0,0 +1 @@
+The minimum version of NumPy has increased to 1.26.