Wish List

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Neil Fortner edited this page May 27, 2025 · 6 revisions

HDF5 Wish List

Here's a bunch of things, in no particular order, that we'd like to see in the HDF5 library.

Big Things

Journaling / Crash Integrity

Unicode Support

Multithreading Support

Streaming Optimizations

Sparse Datasets

Improved Variable-Length Data

Work Better with the Cloud

Overhaul the Error Reporting Scheme

Encryption support

Small Things

Improved Performance

Create a Performance Test Suite

Expand Data Types

Complex
Half-precision floats
Boolean

Improved Security

oss-fuzz
Coverity

Public Interface to H5Z_pipeline() and Related Routines

Would allow VOL connectors (and other software) to use the HDF5 data filter/compression facility

Refactor Key Modules

More CI/CD

More Transparency

CDash reporting of HPC results
Performance dashboard
Development milestones and roadmaps