fix(dtype): fix nested v2 round trips and detect unsupported field conversions - #4340

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d-v-b wants to merge 11 commits into

zarr-developers:mainfrom

d-v-b:claude/structured-dtype-bugfixes

Commits on Sep 12, 2026

Fix structured dtype v2 round-trip and silent loss of field offsets/padding

d-v-b
and
claude
committed
54ffce8
fix(dtype): reject unrepresentable structured dtypes and fix nested v2 round trip

d-v-b
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claude
committed
fd3c9d2
chore: renumber changelog fragment to upstream PR 4340

d-v-b
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claude
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0395360
style: use single backticks for code in docstrings

d-v-b
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claude
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1c64f19
fix(dtype): preserve padded structured array writes
d-v-b
committed
f10848e
fix(dtype): warn once for padded structured dtypes and reword the rejection message

d-v-b
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claude
committed
00cc271

Commits on Sep 13, 2026

docs: remove redundant structured dtype packing advice
d-v-b
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4d6ad7d
docs: distinguish structured dtype limitations from format rules
d-v-b
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1e28148
docs(dtype): explain generic scale string serialization loss
d-v-b
committed
209a235

Commits on Sep 14, 2026