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*.cmake files are installed in a not standard cmake directory

Component - BuildCMake filesCMake files

Status: Open.

Bug

#6137 In HDFGroup/hdf5;

· matzeri opened on Dec 31, 2025

Investigate and Enable Compiler Security Hardening Flags for HDF5 Binaries

Component - BuildCMake filesCMake files

HDFG-internalInternally coded for use by the HDF GroupInternally coded for use by the HDF Group

Status: Open.

Task

#6203 In HDFGroup/hdf5;

· brtnfld opened on Feb 5, 2026

Errors in data filters are not printed

Component - C LibraryCore C library issues (usually in the src directory)Core C library issues (usually in the src directory)

HDFG-internalInternally coded for use by the HDF GroupInternally coded for use by the HDF Group

Status: Open.

Bug

#6194 In HDFGroup/hdf5;

· fortnern opened on Feb 3, 2026

Can't build with zlib-ng

Status: Open.

Bug

#5901 In HDFGroup/hdf5;

· artiomn opened on Oct 6, 2025

Various fixes to handling of chunk buffers

Component - C LibraryCore C library issues (usually in the src directory)Core C library issues (usually in the src directory)

Status: Draft (not ready).

HDFGroup/hdf5number 6184

#6184 In HDFGroup/hdf5;

· fortnern opened on Jan 30, 2026

Reading a hyperslab of a limited dataset after an unlimited dataset increases the execution time of the former after multiple runs.

Component - C LibraryCore C library issues (usually in the src directory)Core C library issues (usually in the src directory)

HDFG-internalInternally coded for use by the HDF GroupInternally coded for use by the HDF Group

Status: Open.

Bug

#4481 In HDFGroup/hdf5;

· abhibaruah opened on May 13, 2024

Reading a hyperslab of a dataset with an unlimited dimension increases the execution time in successive runs

Component - C LibraryCore C library issues (usually in the src directory)Core C library issues (usually in the src directory)

HDFG-internalInternally coded for use by the HDF GroupInternally coded for use by the HDF Group

Status: Open.

Bug

#4513 In HDFGroup/hdf5;

· abhibaruah opened on May 21, 2024

H5Dwrite execution time in Windows increases in subsequent runs when a variable is written with chunking and compression

Component - C LibraryCore C library issues (usually in the src directory)Core C library issues (usually in the src directory)

HDFG-internalInternally coded for use by the HDF GroupInternally coded for use by the HDF Group

Status: Open.

Bug

#3858 In HDFGroup/hdf5;

· abhibaruah opened on Nov 16, 2023

HDF5 error when reading back NC_VLEN variable with fill value and chunking

HDFG-internalInternally coded for use by the HDF GroupInternally coded for use by the HDF Group

Status: Open.

Bug

#5394 In HDFGroup/hdf5;

· bmribler opened on Mar 18, 2025

Can't Configure with -D HDF5_ENABLE_FORMATTERS:BOOL=ON

Component - BuildCMake filesCMake files

Status: Open.

Bug

#6012 In HDFGroup/hdf5;

· hyoklee opened on Nov 10, 2025

Feature: Digital Signature Verification for HDF5 Plugins

Component - C LibraryCore C library issues (usually in the src directory)Core C library issues (usually in the src directory)

HDFG-internalInternally coded for use by the HDF GroupInternally coded for use by the HDF Group

Status: Open (in progress).

HDFGroup/hdf5number 6198

#6198 In HDFGroup/hdf5;

· brtnfld opened on Feb 4, 2026

[PACKAGING] Investigate and implement official OBS (openSUSE Build Service) packaging for HDF5

Component - BuildCMake filesCMake files

Status: Open.

Enhancement

#6264 In HDFGroup/hdf5;

· brtnfld opened on Mar 3, 2026

Change Version in config/examples/HDF5_Examples.cmake.in

Component - BuildCMake filesCMake files

Status: Open.

Bug

#6260 In HDFGroup/hdf5;

· hyoklee opened on Mar 2, 2026

Change Release Package Description for FFM

Status: Open.

Bug

#6269 In HDFGroup/hdf5;

· hyoklee opened on Mar 4, 2026

Change default API version of functions introduced after global API version

Component - C LibraryCore C library issues (usually in the src directory)Core C library issues (usually in the src directory)

HDFG-internalInternally coded for use by the HDF GroupInternally coded for use by the HDF Group

Status: Open.

#6278 In HDFGroup/hdf5;

· fortnern opened on Mar 9, 2026

Default versioned API functions to earliest version for older API settings

Status: Open (in progress).

HDFGroup/hdf5number 6280

#6280 In HDFGroup/hdf5;

· brtnfld opened on Mar 10, 2026

Fix CMake config file install paths to follow platform conventions

Status: Draft (not ready).

HDFGroup/hdf5number 6174

#6174 In HDFGroup/hdf5;

· lrknox opened on Jan 26, 2026

Document CMake options in a central location

Component - DocumentationDoxygen, markdown, etc.Doxygen, markdown, etc.

Status: Open (in progress).

HDFGroup/hdf5number 6294

#6294 In HDFGroup/hdf5;

· jhendersonHDF opened on Mar 17, 2026

Tools docs: Unwanted conversion of double minus sign

Status: Open.

Bug

#6307 In HDFGroup/hdf5;

· Dave-Allured opened on Mar 20, 2026

Fix cache image testing issues and re-enable testing

Component - C LibraryCore C library issues (usually in the src directory)Core C library issues (usually in the src directory)

Component - ParallelParallel HDF5 (NOT thread-safety)Parallel HDF5 (NOT thread-safety)

Component - TestingCode in test or testpar directories, GitHub workflowsCode in test or testpar directories, GitHub workflows

Status: Open (in progress).

HDFGroup/hdf5number 6311

#6311 In HDFGroup/hdf5;

· jhendersonHDF opened on Mar 20, 2026