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announce stable release THREDDS Data Server version 3.4

A new stable release of the THREDDS Data Server 3.4 is now ready at

http://www.unidata.ucar.edu/projects/THREDDS/tech/index.html#TDS

Among other feaures, this version now has all the functionality of the older OpenDAP Aggregation Server (AS), 
which is no longer supported. The AS allowed aggregation of static sets of files, using "Union", 
"Join Existing" and "Join New" types. The TDS also adds automatic scans of directories, 
plus manipulation of the dataset metadata using NcML.

The configuration of the TDS is significantly different than the AS, since the 
TDS uses NcML Aggregation. See:

http://motherlode.ucar.edu:8080/thredds/docs/NcML.htm
http://www.unidata.ucar.edu/software/netcdf/ncml/
You are encouraged to upgrade to new stable releases as they become available, since various bugs are fixed. A stable release means that no further features will be added, and only bug fixes will be made. New development is now being done on the 3.5 version. This version will be adding more features, especially to deal with dynamically changing datasets, new types of aggregation, and some of the sophisticated features of TDS catalog generation (filter, sort, name) will be pushed into NcML aggregation. Use the development version only if you need the new features and are willing to bleed a little bit.