[netcdf-java] announce CDM 4.3.9 alpha release (version 2)

heres the completed version of this announcement:

In keeping with the fine tradition of making a release on Friday, and
immediately leaving, we are pleased to announce that the CDM 4.3.9
release is now available at:


Because of the many and deep changes to 4.3, we are calling this an
alpha release. We hope to get it back to beta very soon.
Please try this out in your application and let us know what issues you
see. Thanks!

John, Dennis, Ethan, Marcos, Sean

Some of the main features:

1. Building

Everything has been mavenized. If you want to build from source, you
need git and maven:

git clone git://github.com/Unidata/thredds.git thredds
cd thredds
mvn install

Note that:
  - in order to support the strict Maven module dependency rules,
classes may have been moved to different modules.
  - you should use Maven for complicated dependency management
  - there are a limited number of variations of the jar files on the
web site - just the complete CDM and ToolsUI right now. Let us know if
you need others and we will prioritize.
  - the ant builds, and the source release jar, are no longer maintained.

2. GRIB rewrite.

The GRIB-1 and GRIB-2 IOSPs have been completely rewritten. Many errors
have been fixed, and if you are reading GRIB, you want to start using
4.3 asap.

Documentation of GRIB is at:


3. GRIB variable renaming:

GRIB names have been substantially changed to deal with various defects
in previous versions. In the end, we decided to keep the names as human
readable, at the cost that they will change when external tables get
changed. But if you have scripts that depend on variable names, you will
need to update them to use the new names.

We do have a hueristic mapping of old names to new. However, it is not
always accurate, because the old names are dependent on the exact
dataset. See ucar.nc2.grib.GribVariableRenamer for details.

4. WMO / GRIB  / BUFR table updates.

The latest WMO tables for GRIB and BUFR are used. GRIB local tables have
been updated where possible.

5. HTTPClient usage has been changed; we have wrapped the HTTPClient
library to insulate you from future changes. Details are here:


6. Runtime loading of IOSPs:

IOSPs can now be found automatically using
javax.imageio.spi.ServiceRegistry, see:


7: Many bug fixes and new features, see CHANGE log:


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