Version 4.6.2 of the netCDF-C library is now available. Please read the full announcement for a list of changes. Note that new versions of the netCDF FORTRAN and C++ libraries will be available shortly.

Version 4.7.7 of the netCDF Operators (NCO) has been released. NCO is an Open Source package that consists of a dozen standalone, command-line programs that take netCDF files as input, then operate (e.g., derive new data, average, print, hyperslab, manipulate metadata) and output the results to screen or files in text, binary, or netCDF formats.

In May 2018, The HDF Group announced a new support strategy for the HDF5 libraries that are included in netCDF4. Because HDF5 libraries are needed by the netCDF4 libraries to create fully-featured netCDF files, the changes to The HDF group's support strategy have raised questions about netCDF's future path in the netCDF community.

Unidata and the netCDF team have been in close contact with The HDF Group since their announcement, and we reiterate our commitment to providing netCDF libraries that do not require any paid software licenses in order to create or read files that conform to the netCDF standard. Read on for details.

Version 4.7.5 of the netCDF Operators (NCO) has been released. NCO is an Open Source package that consists of a dozen standalone, command-line programs that take netCDF files as input, then operate (e.g., derive new data, average, print, hyperslab, manipulate metadata) and output the results to screen or files in text, binary, or netCDF formats.

The NCO project is coordinated by Professor Charlie Zender of the Department of Earth System Science, University of California, Irvine. More information about the project, along with binary and source downloads, are available on the SourceForge project page.

Registration will be opening shortly for Unidata's 2018 Software Training Workshop. The workshop features courses on Unidata's display and analysis packages MetPy, IDV, and AWIPS, as well as courses on data access and management tools including the Local Data Manager (LDM) and the THREDDS Data Server (TDS), and netCDF.

Version 4.7.4 of the netCDF Operators (NCO) has been released. NCO is an Open Source package that consists of a dozen standalone, command-line programs that take netCDF files as input, then operate (e.g., derive new data, average, print, hyperslab, manipulate metadata) and output the results to screen or files in text, binary, or netCDF formats.

Version 4.6.1 of the netCDF-C library is now available. This is primarily a maintenance release; read on for details.

Version 4.7.3 of the netCDF Operators (NCO) has been released. NCO is an Open Source package that consists of a dozen standalone, command-line programs that take netCDF files as input, then operate (e.g., derive new data, average, print, hyperslab, manipulate metadata) and output the results to screen or files in text, binary, or netCDF formats.

Version 4.6.0 of the netCDF-C library is now available. See the Release Notes for complete information. Highlights of this release include:

• Full support for using HDF5 dynamic filters, both for reading and writing.
• An option to enable strict null-byte padding for headers.
• Changes to support workflows created under versions prior to 4.5.0.
• Various bug fixes and other enhancements.

Version 4.7.2 of the netCDF Operators (NCO) has been released. NCO is an Open Source package that consists of a dozen standalone, command-line programs that take netCDF files as input, then operate (e.g., derive new data, average, print, hyperslab, manipulate metadata) and output the results to screen or files in text, binary, or netCDF formats.