2010-03-26  Version 2.0.a8
    Features:
    * Single executable called "grads" is now fully-enabled
    * Support for indexing grib and grib2 files that are > 2Gb
    * Support for reading/drawing Shapefiles
      new commands: 'draw shp', 'q shp', 'q dbf', and 'set shpopts'
    * Support for reading/writing compressed netcdf-4
      new commands: q cache, q cachesf, set cachesf, set chunksize
      new options to 'set sdfwrite': -nc3/-nc4, -chunk, -zip, -flt/-dbl
      new descriptor file entry: CACHESIZE
    * New graphics output option: 'set gxout imap' 
      Quickly draws shaded grid boxes just like 'gxout grfill', but
      the metafile is not updated so printim and print will not work.
      Useful for interactive display of high resolution data. 
    Misc:
    * Added template substitution strings %t4, %t5, %t6, %tm4, %tm5, %tm6
    * Enabled -b option in gribmap for GRIB2 files
    * Mods to gribmap and wgrib for handing ECMWF GRIB1 files 
      with long record lengths
    * Improvements to HDF5 interface to speed up performance
    * New command 'q contours' returns contour colors and levels


2009-08-04  Version 2.0.a7.1
	    
    Features:
    * New interface for the HDF5 data format
    * New options for templating on Julian Day and Time axis indices
    * New "offt" syntax for variable specification to express time as an 
      offset from the variable's initial time instead of an absolute value
    * New function eloop() for obtaining E-varying results from expressions 
      that are unable to operate when E is a varying dimension
    * New option for contour labels: 'set clab masked'
      This creates gaps in the contour lines for the labels, so rectangles 
      for the label background are not drawn; contour labels never overlap.

    Misc:
    * Fixed sdfopen/xdfopen to detect only those data variables whose 
      dimensions match all of the grid dimensions
    * Added isnan() and isinf() tests at initial I/O 
	
    Bugs: 
    * Fixed bug in original release of 2.0.a7 for non-templated HDF datasets.
     

2009-06-02  Version 2.0.a6

    Features:
    * Maximum number of user-defined colors increased from 99 to 255. 
    * New commands "set undef" and "query undef" allow the user to 
      control the undefined data value for all forms of GrADS output. 
      This affects all the undefined values printed to screen in the 
      'gxout stat' and 'gxout print' output, as well as the undefined 
      values in fwrite, sdfwrite, and geotiff files. 
      The default output undef value is -9.99e8.
      N.B. THIS FEATURE CHANGES THE DEFAULT BEHAVIOR OF GrADS! 

    Bugs:
    * Fixed geotiff code to write out data in correct format
    * Fixed the background image option to printim
    * Fixed gancgrid I/O for variables with dimensions in a funky order (i.e. not ETZYX) 
    * Fixed gancgrid response if request is outside of file's bounds
    * Fixed 'close' command to properly reset defaults
    * Fixed gribmap printing debugging and error messages in verbose mode
    * Replaced library function call SDiscoordvar in gasdf.c 

    Misc:
    * More informative error messages when request is beyond file's limits
    * Added chsub option to xdfopen-style descriptors
    * Added -n flag to gr2stn for nearest neighbor option
    * Changed hard-coded undefs from -9.99e33 to -9.99e8 
    * Changed hard-coded XYBMAX from 500 to 5000 in gxshad.c
    * Configure and src code changes to get rid of XLIBEMU
    * Fixes to GUI configuration
    * Bug fix in gaio.c to change vars lskip and lgrib to type g2int
    * Changed var type to off_t and fixed? optimization issues for x86_64 builds 
    * Changed Pixel to gaPixel
    * Removed pcx11e.* from src directory
    * Changed #include syntax for gabufr.h in grads.h


2009-02-04  Version 2.0.a5

    Features:
    * New graphics output options for creating GeoTIFF and KML formatted files
      'set gxout geotiff'   (generates a GeoTIFF data file)
      'set geotiff'         (sets output filename root and other characteristics)
      'set gxout kml'       (generates a TIFF image file and a companion KML text file)
      'set kml'             (sets output filename root)

    Bugs: 
    * PDEF lcc now works properly in the Southern Hemisphere
    * sdfwrite output has correct time axis units

    Misc:
    * Added support for templating on T but not E for self-describing files
    * Added support for optional padding of sdfwrite output to include fixed dimensions
    * Added check in gribmap for non-supported grib2 product definition templates
    * Added support for jpeg image output format with printim


2008-12-31   Version 2.0.a4

    Bugs:
    * Fixed function stnave(): error occurred when setting undef mask for result 
      if some reports were missing. Led to incorrect averages!!
    * Fixed function asum(): error occurred when setting undef mask for final result.
      Led to answer being always undefined!!
    * Fixed seg fault for non-templated netcdf files when X dim wraps the globe
      and other dims are fixed.
    * No precision errors for some hourly GDS data sets. 

    Misc:
    * 'set frame circle' now works for orthograhic projections
    * Support for grib2 grid 204 (curvilinear orthogonal)
    * The color of a constant grid is whatever 'set ccolor' is, instead of being fixed red
    * The 'q ctlinfo' and 'q file' output is enhanced and more accurate. 
      (This one helps GDS 2.0 know when a data set is 4D or 5D.)
    * Create postscript output from inside GrADS using 'print' command without 'enable print'

  
2008-08-12   Version 2.0.a3
    
    Features:
    * New set of commands for writing out netcdf files.  
      'sdfwrite'       (creates the file, takes a defined variable name as an argument) 
      'set sdfwrite'   (sets the output filename, default is grads.sdfwrite.nc) 
      'query sdfwrite' (shows the output filename, format, and user-specified attributes)
      'set sdfattr'    (sets attribute metadata for the output file) 
      'clear sdfwrite' (resets the sdf output filename and releases any	attributes)
    * Added "PDEF GENERAL" as an data-format independent alternative to "PDEF FILE".

    Fixes: 
    * Station data handling via OPeNDAP (enabled with libgadap) works with GDS 2.0.
    * The stnmap utility does not seg fault when some templated data files are missing.
    * Added PDEF handling for 2-D native HDF and NetCDF files 
    * Data format dependence in PDEF FILE better documented. Warning issued
      when data set that uses PDEF FILE is opened. 
    * Memory leak in scorr().
    * The index files created by gribmap are portable
    * parsing of VECTORPAIRS entry in descriptor file does not seq fault 

    Misc:
    * Graphical display window is sized according to the height of the display;
      portait is 90% of display height, landscape is 60%.
    * Changes to the configure tools to facilitate building from source 
    * The sdfopen command handles files with "axis" attribute
    * Output from 'query config' more complete, contains some supplib versions
    * Support for NetCDF and HDF files with spaces in the variable names;
      substitute ~ for <space> in varname=>alias syntax.


2008-04-28   Version 2.0.a2
    
    Features:
    * ready for use with GDS-2.0 to access 5-dimensional data sets via OPeNDAP
    * support for thinned grib2 grids 
    * gribmap has -0 option for grib2
    * allows non-float data types for hdf coordinate axes 
    
    Bug Fixes:
    * memory leak when replacing an existing defined variable
    * multiple fixes for netcdf/hdf handling (templating, zrev, %nodim%, et al.)
    * contour interval and label handling for double precision 
    * changed 'query dims' output for Ensembles
    * fixed gribmap's handling of data sets templated over T but not E


2008-02-13   Version 2.0.a1

    Bug Fixes:
    * detection of linear and wrapping axes for netcdf files opened with sdfopen
    * GRIB2 grids that have a bitmap were being drawn upside down
    * display for gxout=model and gxout=grid
    * handling of templated netcdf data sets opened with xdfopen
    * detection of unlimited axis in hdf files opened with sdfopen
    * reading PDEF files
    * creating gribmap index files >250mb 
    * added some debug statements for detection of errors in calls to seekgb() in the grib2c library


2008-01-25   Version 2.0.a0
    
    Initial release of GrADS 2.0. 
    * new fifth (ensemble) dimension for gridded data sets 
    * supports GRIB2 formatted data 
    * new external utility 'grib2scan' 
    * internal data handling is all double precision 
    * undef handling completely reimplemented 
    * new function "lterp" for linear interpolation
    * new exectuable names: grads and gradsdap
    * no LATS interface, no UDFs