NetCDF 4.4.1.1

Version 4.4.1.1 of the NetCDF-C library is now available. This is a maintenance release containing several important bug fixes. The Unidata netCDF team recommend migrating to netCDF 4.4.1.1 as soon as is possible to avoid a potential — albeit extremely rare — data loss issue in ncgen specific to 64-bit environments when using netCDF4 compound data types. (See below for details.)

Note that version 4.4.1.1 incorporates the support for libhdf5 1.10.0 initialy released in NetCDF-C version 4.4.1. See the NetCDF 4.4.1 announcement for details.

Notable changes in version 4.4.1.1 include:

  • Fixed an issue where ncgen would potentially crash or write incorrect netCDF4 binary data under very specific circumstances. This bug did not affect data written on 32-bit systems or by using the netCDF library; it was specific to ncgen. This would only happen when writing a compound data type containing an 8-byte data type followed by a 4-byte data type and the 4-byte data type was not properly aligned; this would possibly result in incorrect padding. This did not affect 32-bit systems, or data written directly by the library. See GitHub #323 for more information.
  • Updated documentation related to netCDF variable names and DAP2 access to reflect the undefined behavior potentially observed when DAP2 reserved keywords are used as netCDF variable names. See GitHub #308 for more information.
  • Fixed an issue with nc_inq_type() not returning proper value in some circumstances. See GitHub #317 for more information.
  • Corrected an issue related to test failures when --disable-utilities or -DENABLE_UTILITIES=OFF are specified when building with autotools or cmake, respectively. See GitHub #313 for more information.
  • Corrected a behavioral issue with the _NCProperties attribute taking up too much space. See GitHub #300 and GitHub #301 for more information.
  • Corrected behavior for nc-config so that, if nf-config is found in system, the proper fortran-related information will be conveyed. See GitHub #296 for more information.

Detailed information about the release is available in the Release Notes.

Complete information about using this release can be found in the NetCDF Documentation.

Source-code zip and tar.gz archives can be found on Unidata's NetCDF-C GitHub site.

Pre-built Windows binaries for use with Visual Studio) are available from this page.

Users of the netCDF FORTRAN and C++ Libraries Note

You can use the upgraded C library without upgrading your FORTRAN or C++ library.

Comments:

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Posted by Jia Liu on November 24, 2016 at 07:28 PM MST #

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Posted by weer lee on December 13, 2016 at 01:32 PM MST #

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Posted by zhen.zhang on January 11, 2017 at 10:48 PM MST #

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Posted by Haibo Huang on February 09, 2017 at 10:53 PM MST #

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Posted by Georgios Nomikos on February 16, 2017 at 01:39 AM MST #

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Posted by 姚玉龙 on February 26, 2017 at 06:20 AM MST #

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