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HDF5 build fails using <code>-DHDF5_ENABLE_PARALLEL=ON</code>

Status: Open.

#6205 In HDFGroup/hdf5;

· Growl1234 opened on Feb 6, 2026

2.0.0 fail to build with zlibng 2.3.3

Status: Open.

#6204 In HDFGroup/hdf5;

· braindevices opened on Feb 6, 2026

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

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HDF5 2.2.0

HDF5 pthread Linking Bug in 1.14.5+ when using glibc &lt; 2.34

Status: Open.

#6201 In HDFGroup/hdf5;

· SoShiny opened on Feb 5, 2026

H5Ocopy does not copy dimension scales properly

Status: Open.

#6200 In HDFGroup/hdf5;

· takluyver opened on Feb 5, 2026

Automerge passing dependabot changes

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

Status: Open.

Task

#6197 In HDFGroup/hdf5;

· brtnfld opened on Feb 4, 2026

·  

HDF5 2.x.x

Errors in data filters are not printed

Status: Open.

#6194 In HDFGroup/hdf5;

· fortnern opened on Feb 3, 2026

HDF5 Filters only Required when Writing Data

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

Status: Open.

Enhancement

#6193 In HDFGroup/hdf5;

· ajelenak opened on Feb 3, 2026

Problem reading vlen dataset in read only mode

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

Status: Open.

Bug

#6187 In HDFGroup/hdf5;

· fortnern opened on Jan 30, 2026

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HDF5 2.x.x

Add the RFC "Adding support for digitally signed plugins to HDF5" to the RFC collection

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

Status: Open.

Bug

#6186 In HDFGroup/hdf5;

· gheber opened on Jan 30, 2026

·  

HDF5 2.x.x

Add the Write-Ahead Log RFC to the RFC table

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

Status: Open.

Enhancement

#6185 In HDFGroup/hdf5;

· gheber opened on Jan 30, 2026

·  

HDF5 2.x.x

Cant compile hdf5 2.0.0 with mpi enabled

Component - BuildCMake filesCMake files

Component - WrappersC++, Java & Fortran wrappersC++, Java & Fortran wrappers

Status: Open.

Bug

#6175 In HDFGroup/hdf5;

· nadyawilliams opened on Jan 27, 2026

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HDF5 2.x.x