v2.7.1

Adds a nrefs accessor for counting virtual chunk references, a mode parameter on vz.to_icechunk for controlling how a pre-existing group is handled, and an HDF4Parser for reading HDF4 files. Also fixes several scalar-array and Kerchunk-reference edge cases in the ZarrParser, IcechunkParser, and Kerchunk translator (including FITS structured dtypes), and fixes writing a virtual DataTree with region/append_dim into existing groups.

What's Changed

• Add blank unreleased section after v2.7.0 by @TomNicholas in #1028
• Add nrefs() method to VirtualiZarrDatasetAccessor by @maitriupadhyay03-cell in #1029
• Advertise bi-weekly community meeting on contributing page by @TomNicholas in #1030
• Fix grib tests against gribberish >=1.3.0 nested group layout by @TomNicholas in #1041
• Fix ZarrParser crash on uninitialized scalar chunk (e.g. CRS variables) by @TomNicholas in #1039
• Add virtual GRIB NBM blog post to articles lists by @TomNicholas in #1043
• Correct GRIB bitmap docs: VirtualiZarr does ship a GRIB parser by @TomNicholas in #1040
• Fix IcechunkParser producing wrong-shaped manifest for scalar arrays by @TomNicholas in #1042
• Fix kerchunk structured-dtype refs (FITS binary tables) by @emfdavid in #1037
• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci[bot] in #1034
• Add HDF4Parser reusing kerchunk.hdf4 by @TomNicholas in #1044
• Update stale rows in the Kerchunk comparison FAQ by @TomNicholas in #1045
• Fix ContainsGroupError when writing a DataTree with region/append_dim by @aaronspring in #1036
• Surface mode in vz.to_icechunk, keeping current defaults by @aaronspring in #1035
• Release notes for v2.7.1 by @TomNicholas in #1046

New Contributors

• @maitriupadhyay03-cell made their first contribution in #1029
• @emfdavid made their first contribution in #1037
• @aaronspring made their first contribution in #1036

Full Changelog: v2.7.0...v2.7.1