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CHANGES

@@ -1,17 +1,58 @@
-SOME CHANGES IN GRASS 5.7/6.0
+CHANGES IN GRASS 6 compared to GRASS 5
 
-- G_gui() - new, generates GUI for command, it is run by default if no
-            parameters were specified on command line; terminal interface
-            may be forced by setting variable GRASS_UI_TERM
-- GISLIB 
-  - G_warning(), G_fatal_error() - send mail only if eviroment variable
-                                   GRASS_ERROR_MAIL is set
-  - G_debug() - new, print debugging info on selected level
-  - G_plot_icon() - new, plot selected mark
-- DBMI 
-  - dbmscap file is not used, drivers are searched in dist.$ARCH/driver/db
-  - new dbf driver
-- vector library completely rewritten (multilayer, multiformat, 3D)
-- new make system
-- programmer's manual integrated into source code (doxygen)
+    * New Vector Engine (geometry):
+          o Support for 2D/3D vectors (see screenshot) (CAD drawings,
+            TINs), visualization supported in NVIZ
+          o multiformat - also virtual map supported from external
+            data sources (SHAPE-file, PostGIS) without the need of data
+            conversion (through OGR library with 'v.external');
+            Export/Import to PostGIS;
+          o spatial index build on the fly - 'v.build' (was:
+            v.support) significantly accelerated;
+          o category index to accelerate attribute queries;
 
+    * Database Management Interface (attributes):
+          o Attribute storage in DBMS for compatibility with industry
+            standards (SQL based interface for PostgreSQL, mySQL, ODBC, dBase)
+          o multiattribute - attributes saved in dBase files (default)
+            or saved in external DBMS
+          o multilayer - features in one vector may represent one or
+            several layers and may be linked to one or many external
+            tables
+          o forms library implemented for user friendly query dialogs
+          o Linear reference systems supported (LRS, yet to integrate)
+
+    * Applications/Misc:
+          o SQL queries/selects/extractions supported by vector modules
+          o interactive attributes updating is supported through the
+            forms library (d.what.vect lets you modify directly the
+            attached attributes)
+          o Vector network analysis: Shortest path, Traveling salesman
+            (round trip), Allocation of sources (subnetworks), Minimum
+            Steiner trees (starlike connections), and isodistances (from
+            centers) (e.g. shortest path, see screenshot) - based on
+            DGLIB (Directed Graph Library), costs may be assigned both
+            to nodes and arcs (and also different in both directions of
+            a vector line)
+          o new v.digit with GUI (screenshot)
+          o import and export of any OGR supported vector format
+            (Shapefile, TIGER, MapInfo and GML2, PostGIS and DGN)
+          o GUI generated on runtime and display manager (screenshots)
+          o i18n: support for multiple languages (messages partially
+            indicated and translated)
+          o multiple GRASS sessions: a user can start more than one session at the time
+
+    * Interoperability
+          o Raster and vector data interoperability is granted through
+            the GDAL/OGR libraries which implement interfaces to OGC
+            standards and common GIS data formats
+
+    * Volume visualization
+          o NVIZ now supports volume (voxel) visualization
+          o VTK export
+
+    * Large File Support for raster maps (Experimental!)
+          o GRASS 6.0 experimentally supports reading and writing
+            large files (> 2GB, LFS support)
+
+    * Programmer's manual integrated into source code (doxygen)