HDF5 1.8.11 release candidate is available for testing

Dear HDF users,

A pre-release candidate version of HDF5 1.8.11 is available for testing and can be downloaded at the following link:

For Windows users, there is an equivalent
http://www.hdfgroup.uiuc.edu/ftp/pub/outgoing/hdf5/hdf5-1.8.11/hdf5-1.8.11-pre2.zip <http://www.hdfgroup.uiuc.edu/ftp/pub/outgoing/hdf5/hdf5-1.8.11/hdf5-1.8.11-pre2.tar.gz>

The tar ball contains fixes for a few CMake problems reported on FORUM for the previous release candidate. Specifically, the requested enhancement for building parallel HDF5 with CMake has been addressed.

Last time we failed to announce that HDF5 1.8.11 release will contain two new features that may be of interest to anyone who works with the compressed data in HDF5.

- Writing a compressed chunk bypassing HDF5 library internals for a better speed.
   We added a high-level function H5DOwrite_chunk documented here

-"Dynamically loaded filters in HDF5" will allow to load a compression library at run time. With this feature the users will be able to use
   the HDF5 library and tools distributed by The HDF Group with the thrid-party HDF5 compression methods (and other filters).
   The document that describes the feature and the BZI2 plugin example is available from

If you have some time to test this pre-release, we would greatly appreciate it. Newly reported issues will be documented and will be addressed in the next release.

Thank you!

-Albert Cheng
The HDF Group