Re: [netcdfgroup] NetCDF 4.6.2 Release Candidate 2 now available

• To: netcdfgroup@xxxxxxxxxxxxxxxx
• Subject: Re: [netcdfgroup] NetCDF 4.6.2 Release Candidate 2 now available
• From: Dave Allured - NOAA Affiliate <dave.allured@xxxxxxxx>
• Date: Fri, 2 Nov 2018 15:03:07 -0600

Ward and netCDF team,

Thanks for all the enhancements, debug, and refactoring that went into this
release.  I know there was a lot.

My group is interested in the new per-variable chunk sizing for nccopy.  It
seems that per-variable chunk sizing is missing from the RC2 documentation
for nccopy (User's Guide under NetCDF Utilities).  Can you please add
this?  Confession, I did not have a chance to build and check the man page
yet.  Thanks.

--Dave


On Fri, Nov 2, 2018 at 2:24 PM, Ward Fisher <wfisher@xxxxxxxx> wrote:

> Hello all,
>
> The Unidata netCDF team is happy to announce the second release candidate
> for netCDF-C 4.6.2.
>
> Barring any surprises, we should have the full release in short order,
> followed by Fortran and C++ interface releases.
>
> Resources:
>
>    - Download source: https://github.com/Unidata/
>    netcdf-c/releases/tag/v4.6.2-rc2
>    <https://github.com/Unidata/netcdf-c/releases/tag/v4.6.2-rc2>
>    - Documentation: https://www.unidata.ucar.edu/software/netcdf/docs_rc
>    - Windows binaries download: https://www.unidata.ucar.edu/
>    software/netcdf/docs_rc/winbin.html
>    <https://www.unidata.ucar.edu/software/netcdf/docs_rc/winbin.html>
>
> Please feel free to contact us with any bug reports or questions!
>
> Thank you very much all, have a great day,
>
> -Ward
>
> Ward Fisher
> Unidata
> Software Engineer - NetCDF Team Lead
>
> The changes from the previous version include (but are not limited to):
>
>    - [Enhancement] Add nccopy command options for per-variable chunk
>    sizing, and minimum chunk size. See GitHub #1087
>    <https://github.com/Unidata/netcdf-c/pull/1087>.
>    - [Bug Fix] Fix nccopy handling of user specified chunk sizes. See GitHub
>    #725 <https://github.com/Unidata/netcdf-c/issues/725>,#1087
>    <https://github.com/Unidata/netcdf-c/issues/1087>.
>    - [Bug Fix] Avoid limit on number of times a netCDF4 attribute can be
>    updated. Not a complete fix for the HDF5 “maximum creation order” problem,
>    but should greatly reduce occurrences in many real-world cases. See GitHub
>    #350 <https://github.com/Unidata/netcdf-c/issues/350>.
>    - [Bug Fix] The use of NC_DISKLESS has been modified to make it
>    cleaner. This adds a new flag called NC_PERSIST that takes over the now
>    obsolete NC_MPIPOSIX.
>    - [Obsolete] Obsolete the MPIPOSIX flag.
>    - [Bug Fix] When using filters with HDF5 1.10.x or later, it is
>    necessary to utilize the HDF5 replacements for malloc, realloc, and free in
>    the filter code.
>
>

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