netcdf 4.10.0

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Created by brew bump

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Details

release notes

# 4.10.0 - February 25, 2026

Regularize, cleanup, and refactor various AWS features, especially WRT regularizing AWS-related constants. See Github 3229 for more information.
Add extra failure handling to the daos inferencing. See Github 3238 for more information.
Regularize, cleanup, and refactor various AWS features, especially WRT regularizing AWS-related constants. See Github 3229 for more information.
Add compatibility with HDF5 2.0.0.  See Github #3247 for more information.
Introduce consolidated metadata Github #3225 via mode=consolidated or NCZARR_CONSOLIDATED
Fix the H5FD_class_t problems. See Github 3202 for more information.
Begin the consolidation of global state into two files: libdispatch/dglobal.c and include/ncglobal.h. See Github 3197 for more information.
Modify the way xarray attribute sets are handled. See Github 3218 for more information.
Fix Issue with Numcodecs encoding problems where integer filter parameters are being encoded as strings. See Github 3201 for more information.
Clean up minor problems with DAP2/DAP4 code. See Github #3215 for more information.
Cleanup RELEASE_NOTES.md. See Github 3190 for more information.
Rebuild the S3-related code and other changes necessary to build cleanly on github actions. See Github #3159 for more information.
Fix the problems around ncdap_test/test_manyurls.c. See Github 3182 for more information.
Fix bug in ncdump when printing FQNs (Issue 3184). See Github 3185 for more information.
Update macOS github runners from macos-13 to macos-14, due to deprecation.
Fix an error compiling netCDF with AWS-S3-SDK support using cmake. See Github 3155 for more information.
Add new environmental logging variable for netCDF4 related logging subsystem, NC4LOGGING.  If libnetcdf is compiled with logging enabled, logs can be enabled at runtime by setting this environmental variable to the desired log level.
Update ncjson.[ch] and ncproplist.[ch]. Also fix references to old API. Also fix include/netcdf_ncjson.h and include/netcdf_proplist.h builds. See Github #3086 for more information.
Refactor drc.c to move many of its purely utility functions into dutil.c. Also change the NC_mktmp signature. Change other files to match. See Github #3094 for more information.
Provide an auxiliary function, ncaux_parse_provenance(), that allows users to parse the _NCProperties attribute into a collection of character pointers. See Github #3088 for more information.
Fix a namespace problem in tinyxml2.cpp. Note that this is a visual studio problem hence use of _MSC_VER. Also turn off DAP4 tests against Hyrax server until DAP4 spec problems are fixed. See Github #3089 for more information.

What's Changed

Merge v4.9.3 wellspring changes back upstream.  by @WardF in Merge v4.9.3 wellspring changes back upstream.  Unidata/netcdf-c#3084
Provide an auxilliary function that allows users to parse the _NCProperties attribute. by @DennisHeimbigner in Provide an auxilliary function that allows users to parse the _NCProperties attribute. Unidata/netcdf-c#3088
Correct issue with .exe installer generation. by @WardF in Correct issue with .exe installer generation. Unidata/netcdf-c#3096
Correct a syntax error in previous packaging fix.  by @WardF in Correct a syntax error in previous packaging fix.  Unidata/netcdf-c#3097
Fix SIGFPE with -0.0 values and quantization by @czender in Fix SIGFPE with -0.0 values and quantization Unidata/netcdf-c#3093
Give config.h a higher precedence. by @drwells in Give config.h a higher precedence. Unidata/netcdf-c#3100
Fix reported memory leak by @WardF in Fix reported memory leak Unidata/netcdf-c#3102
Fix bug in copying compound types with variable length fields. by @DennisHeimbigner in Fix bug in copying compound types with variable length fields. Unidata/netcdf-c#3111
Step 1 in splitting PR 3068 by @DennisHeimbigner in Step 1 in splitting PR 3068 Unidata/netcdf-c#3086
Create docker_regression_testing.yml by @WardF in Create docker_regression_testing.yml Unidata/netcdf-c#3116
Add a one-off test for java. by @WardF in Add a one-off test for java. Unidata/netcdf-c#3117
Step 2 in splitting PR 3068 by @DennisHeimbigner in Step 2 in splitting PR 3068 Unidata/netcdf-c#3089
Updated copyright by @WardF in Updated copyright Unidata/netcdf-c#3119
Fix various problems with S3 related code by @DennisHeimbigner in Fix various problems with S3 related code Unidata/netcdf-c#3090
Broken S3 implementation for netcdf files on non-AWS + Authenticated buckets by @mannreis in Broken S3 implementation for netcdf files on non-AWS + Authenticated buckets Unidata/netcdf-c#3098
Modify provenance check "_IsNetcdf4" to check for existence of "_NCProperties" by @DennisHeimbigner in Modify provenance check "_IsNetcdf4" to check for existence of "_NCProperties" Unidata/netcdf-c#3125
Fix pointer type on 64-bit Windows by @WardF in Fix pointer type on 64-bit Windows Unidata/netcdf-c#3140
Rebase of #3138 by @WardF in Rebase of #3138 Unidata/netcdf-c#3142
Remove strlcpy from libdispatch by @weiznich in Remove strlcpy from libdispatch Unidata/netcdf-c#3138
Updates for versioned H5Dread_chunk by @brtnfld in Updates for versioned H5Dread_chunk Unidata/netcdf-c#3143
Change order of operations so that data is not referenced after being freed. by @WardF in Change order of operations so that data is not referenced after being freed. Unidata/netcdf-c#3146
Fix Segmentation Fault when testing URLs with no path by @mannreis in Fix Segmentation Fault when testing URLs with no path Unidata/netcdf-c#3095
Only conditionally copy test files by @magnusuMET in Only conditionally copy test files Unidata/netcdf-c#3133
hdf5open.c: Handle null dataspace gracefully by @Dave-Allured in hdf5open.c: Handle null dataspace gracefully Unidata/netcdf-c#3135
CMake: correct the byterange flag by @jmckenna in CMake: correct the byterange flag Unidata/netcdf-c#3131
CMake: handle _INCLUDE_DIR not leveraged at compile time  by @jmckenna in CMake: handle _INCLUDE_DIR not leveraged at compile time  Unidata/netcdf-c#3132
CMake: Bring nczarr dependency when enabling S3 in line with autotools by @WardF in CMake: Bring nczarr dependency when enabling S3 in line with autotools Unidata/netcdf-c#3149
Create PR to support refactor of drc.c code. by @DennisHeimbigner in Create PR to support refactor of drc.c code. Unidata/netcdf-c#3094
Patch #3090 - Fix and test S3 enabled builds by @mannreis in Patch #3090 - Fix and test S3 enabled builds Unidata/netcdf-c#3122
Update Software list with contribution. by @WardF in Update Software list with contribution. Unidata/netcdf-c#3152
Fix integer overflow vulnerability in NC string memory allocation by @dkjsone in Fix integer overflow vulnerability in NC string memory allocation Unidata/netcdf-c#3153
Remove unneeded dependency  by @WardF in Remove unneeded dependency  Unidata/netcdf-c#3158
Address logging via environmental variable issues. by @WardF in Address logging via environmental variable issues. Unidata/netcdf-c#3160
Add failover default AWS region aws_default_region "us-east-1" by @WardF in Add failover default AWS region aws_default_region "us-east-1" Unidata/netcdf-c#3164
Added NC4LOGGING to RELEASE_NOTES.md by @WardF in Added NC4LOGGING to RELEASE_NOTES.md Unidata/netcdf-c#3166
Xattr header detection fix.wif by @WardF in Xattr header detection fix.wif Unidata/netcdf-c#3167
nc4hdf.c: Fix overwrite with zero-length attribute by @Dave-Allured in nc4hdf.c: Fix overwrite with zero-length attribute Unidata/netcdf-c#3169
CMake Builder Docs: document m4 dependency by @johnwparent in CMake Builder Docs: document m4 dependency Unidata/netcdf-c#3173
Fix an issue with using AWS S3 SDK and Cmake.  by @WardF in Fix an issue with using AWS S3 SDK and Cmake.  Unidata/netcdf-c#3174
Updated Github MacOS runners from macos-13 to macos-14 by @WardF in Updated Github MacOS runners from macos-13 to macos-14 Unidata/netcdf-c#3180
Fix bug in ncdump when printing dimension FQN by @DennisHeimbigner in Fix bug in ncdump when printing dimension FQN Unidata/netcdf-c#3185
Fix the problems around ncdap_test/test_manyurls.c. by @DennisHeimbigner in Fix the problems around ncdap_test/test_manyurls.c. Unidata/netcdf-c#3182
General Cleanup to provide a clean base for future PRs. by @DennisHeimbigner in General Cleanup to provide a clean base for future PRs. Unidata/netcdf-c#3159
Cleanup RELEASE_NOTES.md by @DennisHeimbigner in Cleanup RELEASE_NOTES.md Unidata/netcdf-c#3190
ticket #TSP-8629412 bug fix by @dkjsone in ticket #TSP-8629412 bug fix Unidata/netcdf-c#3191
ncgen unsigned suffix fix by @jatkinson1000 in ncgen unsigned suffix fix Unidata/netcdf-c#3189
run_zero_len_att_test.sh: Improve error message by @Dave-Allured in run_zero_len_att_test.sh: Improve error message Unidata/netcdf-c#3170
Fix S3 internal configuration error by @gsjaardema in Fix S3 internal configuration error Unidata/netcdf-c#3175
Fix UBSan warnings about out-of-range assignment by @seanm in Fix UBSan warnings about out-of-range assignment Unidata/netcdf-c#3210
Clean up minor issues in DAP2+DAP4 code by @DennisHeimbigner in Clean up minor issues in DAP2+DAP4 code Unidata/netcdf-c#3215
Added codespell config file, fixed a bunch of spelling mistakes by @seanm in Added codespell config file, fixed a bunch of spelling mistakes Unidata/netcdf-c#3211
Fixed UBSan warnings about left shifts into the sign bit by @seanm in Fixed UBSan warnings about left shifts into the sign bit Unidata/netcdf-c#3207
Fix Issue with Numcodecs encoding problems by @DennisHeimbigner in Fix Issue with Numcodecs encoding problems Unidata/netcdf-c#3201
Initial basic editorconfig support by @seanm in Initial basic editorconfig support Unidata/netcdf-c#3212
Fixed UBSan warnings about offsetting a NULL pointer by @seanm in Fixed UBSan warnings about offsetting a NULL pointer Unidata/netcdf-c#3206
Modify the way xarray attribute sets are handled. by @DennisHeimbigner in Modify the way xarray attribute sets are handled. Unidata/netcdf-c#3218
Part 1 - Zarr consolidated metadata   by @mannreis in Part 1 - Zarr consolidated metadata   Unidata/netcdf-c#3219
Part 2 - Zarr consolidated metadata by @mannreis in Part 2 - Zarr consolidated metadata Unidata/netcdf-c#3220
Part 3 - Zarr consolidated metadata by @mannreis in Part 3 - Zarr consolidated metadata Unidata/netcdf-c#3221
Part 4 - Zarr consolidated metadata by @mannreis in Part 4 - Zarr consolidated metadata Unidata/netcdf-c#3222
Part 5 - Zarr consolidated metadata by @mannreis in Part 5 - Zarr consolidated metadata Unidata/netcdf-c#3223
Part 6 - Zarr consolidated metadata by @mannreis in Part 6 - Zarr consolidated metadata Unidata/netcdf-c#3224
Part 7 - Zarr consolidated metadata by @mannreis in Part 7 - Zarr consolidated metadata Unidata/netcdf-c#3225
Initial consolidation of global state by @DennisHeimbigner in Initial consolidation of global state Unidata/netcdf-c#3197
See if we can add 'dash' shell to packages installed. by @WardF in See if we can add 'dash' shell to packages installed. Unidata/netcdf-c#3235
Fix source directory macro for FetchContent support by @WardF in Fix source directory macro for FetchContent support Unidata/netcdf-c#3234
Fix H5FD_class_t problems by @DennisHeimbigner in Fix H5FD_class_t problems Unidata/netcdf-c#3237
Document Consolidated Metadata by @mannreis in Document Consolidated Metadata Unidata/netcdf-c#3231
Clean up treeview in doxygen-generated documentation by @WardF in Clean up treeview in doxygen-generated documentation Unidata/netcdf-c#3245
Fix parallel hdf5 2.0.0 by @WardF in Fix parallel hdf5 2.0.0 Unidata/netcdf-c#3247
Add extra failure handling to the daos inferencing by @DennisHeimbigner in Add extra failure handling to the daos inferencing Unidata/netcdf-c#3238
Fixed UBSan warning, added missing clamping for text case by @seanm in Fixed UBSan warning, added missing clamping for text case Unidata/netcdf-c#3209
ncs3sdk_aws.cpp: remove duplicate function by @mannreis in ncs3sdk_aws.cpp: remove duplicate function Unidata/netcdf-c#3248
Regularize, cleanup, and refactor various AWS features by @DennisHeimbigner in Regularize, cleanup, and refactor various AWS features Unidata/netcdf-c#3229
Update netcdf-test-action to @v2 by @WardF in Update netcdf-test-action to @v2 Unidata/netcdf-c#3252
Updated docker-based regression testing by @WardF in Updated docker-based regression testing Unidata/netcdf-c#3253
Zarr: Error logging improvement by @mannreis in Zarr: Error logging improvement Unidata/netcdf-c#3250
fixed make distclean by @edhartnett in fixed make distclean Unidata/netcdf-c#3256
fixed warning by @edhartnett in fixed warning Unidata/netcdf-c#3258
Fixed UBSan warnings about unaligned memory access by @seanm in Fixed UBSan warnings about unaligned memory access Unidata/netcdf-c#3208
Zarr csl fully by @mannreis in Zarr csl fully Unidata/netcdf-c#3241
Fix regression reported in #3259 by @mannreis in Fix regression reported in #3259 Unidata/netcdf-c#3263
allow .ncrc loading of user defined format  by @edhartnett in allow .ncrc loading of user defined format  Unidata/netcdf-c#3264
Quote path parameter in shell command during isdaoscontainer by @larsgeb in Quote path parameter in shell command during isdaoscontainer Unidata/netcdf-c#3196
AI Guidelines by @WardF in AI Guidelines Unidata/netcdf-c#3297

New Contributors

@drwells made their first contribution in Give config.h a higher precedence. Unidata/netcdf-c#3100
@jmckenna made their first contribution in CMake: correct the byterange flag Unidata/netcdf-c#3131
@dkjsone made their first contribution in Fix integer overflow vulnerability in NC string memory allocation Unidata/netcdf-c#3153
@jatkinson1000 made their first contribution in ncgen unsigned suffix fix Unidata/netcdf-c#3189
@larsgeb made their first contribution in Quote path parameter in shell command during isdaoscontainer Unidata/netcdf-c#3196

Full Changelog: Unidata/netcdf-c@v4.9.3...v4.10.0

View the full release notes at https://github.com/Unidata/netcdf-c/releases/tag/v4.10.0.

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