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Newsletter #116
September 3, 2010


Release of HDF5 1.8.5-patch1

HDF5 1.8.5-patch1 has been released. It is a full source code release, containing a few important changes and bug fixes, which include:

To Obtain HDF5 1.8.5-patch1, go directly to:


This link can be reached from the HDF Downloads page:


The release notes contain detailed information regarding HDF5 1.8.5-patch1:


The documentation did not change for this release:


The HDF5 1.8.6 release will be available in October 2010, for those who prefer to wait.


New HDF5 High Level functions for region references, hyperslabs, and bit-fields

We are pleased to announce a new set of C and Fortran convenience functions designed to facilitate access to remote sensing data in HDF5. The data will be gathered by a new generation of low earth orbiting satellites that monitor environmental conditions for long-range weather and climate forecasts. (Refer to the NPOESS project for details.)

The source code, installation instructions and a draft of the User's Guide are available from:


The Reference Manual can be found at:


While these functions were created to facilitate access to NPOESS data, some of them may be useful to anyone working with HDF5 region references, hyperslab selections, or bit-fields. For a quick introduction to region references and hyperslab selections see the HDF5 Tutorial:


We are looking forward to receiving your comments on this new set of routines.

Pre-release snapshot of HDF-Java 2.7

A pre-release snapshot of HDF-Java 2.7 is available for download from:


This version of HDFView includes a new feature to display bit-field data packed into an integer (a.k.a. NPOESS quality flags). It also includes wrappers to support HDF5 1.8 features. For more information see:


RFC for h5edit tool

We are actively seeking input regarding a new tool, h5edit, that is under development. This tool is a command-line tool for editing HDF5 files. See the Request For Comments (RFC) page for more information:



September 28-30, 2010:
  HDF and HDF-EOS Workshop XIV

- - Last modified: 14 October 2016