Add changelog entry

dstansby · dstansby · commit 2a4756a81b35 · 2025-05-08T10:45:57.000+01:00
diff --git a/changes/3039.bugfix.rst b/changes/3039.bugfix.rst
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+It is now possible to specify no compressor when creating a zarr format 2 array.
+This can be done by passing ``compressor=None`` to the various array creation routines.
+
+The default behaviour of automatically choosing a suitable default compressor remains if the compressor argument is not given.
+To reproduce the behaviour in previous zarr-python versions when ``compressor=None`` was passed, pass ``compressor='auto'`` instead.
