Monthly issue metrics report

[github-actions]

Issue Metrics

Metric	Average	Median	90th percentile
Time to first response	15:57:41	0:37:40	1 day, 9:24:43
Time to first review	None	None	None
Time to close	4 days, 5:03:43	16:54:22	12 days, 7:05:38
Time to answer	None	None	None

Metric	Count
Number of items that remain open	19
Number of items closed	11
Total number of items created	30

Title	URL	Assignee	Author	Time to first response	Time to first review	Time to close	Time to answer
Link Checker Report	#4301	None	github-actions[bot]	None	None	None	None
Compiler error in numcodec when installing with GCC 15+	#4300	None	romanc	None	None	None	None
to_thread is slow	#4293	None	d-v-b	0:38:56	None	None	None
DOC: zarr-http-server docs are incomplete, missing guide.md	#4291	None	psobolewskiPhD	0:26:22	None	3:32:58	None
from_array silently discards the source array's fill_value and attributes	#4287	None	paraseba	None	None	6:10:57	None
Unsigned integer index arrays are mishandled (IndexError on unsorted, and on any uint64)	#4285	None	selmanozleyen	None	None	None	None
CacheStore never initializes its LRU from an existing cache_store, so a persistent cache directory can grow by a further full max_size for every process that opens it	#4282	None	flummoxjr	1 day, 11:49:15	None	None	None
Link Checker Report	#4281	None	github-actions[bot]	None	None	None	None
Nightly Hypothesis tests failed	#4280	None	github-actions[bot]	None	None	None	None
The "Nightly Hypothesis tests failed" auto-issue has never been filed: all 30 retained nightly failures died in the report step	#4273	None	glaziermag	0:36:25	None	10:08:06	None
A rectilinear chunk spec with a short trailing chunk is silently normalized to a regular grid, changing resize semantics	#4272	None	thomas-maschler	0:06:19	None	None	None
handle missing codecs by telling users what package to install to get the codec	#4271	None	d-v-b	None	None	12 days, 7:05:38	None
subpackage for chunk key encodings	#4268	None	d-v-b	None	None	None	None
Release Zarr-Python v3.3.1	#4256	None	d-v-b	None	None	None	None
Regression in 3.3.0: numpy integer chunk sizes raise TypeError: 'numpy.int64' object is not iterable	#4255	None	ieivanov	0:05:13	None	0:35:25	None
avoid comparing exact output of gzip encoding in codec pipeline tests	#4254	None	d-v-b	5 days, 12:19:58	None	16 days, 5:16:14	None
refresh main README.md	#4250	None	d-v-b	None	None	2:11:04	None
main zarr-python docs should link to subpackages	#4246	d-v-b	d-v-b	None	None	16:54:22	None
Link Checker Report	#4245	None	github-actions[bot]	None	None	None	None
Universal-pathlib support for zarr.open	#4244	None	mark-boer	0:00:41	None	6 days, 21:55:48	None
Feature Request: Expose public synchronous encoding/decoding API in Codec / CodecPipeline	#4243	None	ElemTran	11:43:53	None	None	None
"ValueError: Input array must be contiguous" when cast_value codec next to transpose codec	#4237	None	raphaeljolivet	0:01:33	None	8 days, 10:56:24	None
(zarr-metadata/zarr-indexing) document RTD slug quirks	#4236	None	d-v-b	None	None	None	None
(zarr-metadata) builder classes	#4235	None	d-v-b	8:42:53	None	None	None
(zarr-metadata) module layout improvements	#4234	None	d-v-b	None	None	None	None
Link Checker Report	#4230	None	github-actions[bot]	None	None	None	None
move cachestore out of experimental	#4228	None	d-v-b	None	None	None	None
consolidated metadata does not capture differently-cased keys	#4226	None	ilan-gold	None	None	18:53:52	None
Fix broken docstring-consistency test - it reveals mismatches in parameter docs	#4225	None	Aniketsy	1:00:49	None	None	None
Monthly issue metrics report	#4223	None	github-actions[bot]	None	None	None	None

This report was generated with the Issue Metrics Action
Search query used to find these items: repo:zarr-developers/zarr-python is:issue created:2026-08-01..2026-08-31 -reason:"not planned"