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PostGIS 1.4.0 Release

The 1.4.0 release of PostGIS is now available. This is a significant release including many performance enhancements and bug fixes

  • API Stability
    • As of the 1.4 release series, the public API of PostGIS will not change during minor releases.
  • Compatibility
    • The versions below are the *minimum* requirements for PostGIS 1.4
    • PostgreSQL 8.2 and higher on all platforms
    • GEOS 3.0 and higher only
    • PROJ4 4.5 and higher only
  • New Features
    • ST_Union() uses high-speed cascaded union when compiled against GEOS 3.1+ (Paul Ramsey)
    • ST_ContainsProperly() requires GEOS 3.1+
    • ST_Intersects(), ST_Contains(), ST_Within() use high-speed cached prepared geometry against GEOS 3.1+ (Paul Ramsey)
    • Vastly improved documentation and reference manual (Regina Obe & Kevin Neufeld)
    • Figures and diagram examples in the reference manual (Kevin Neufeld)
    • ST_IsValidReason() returns readable explanations for validity failures (Paul Ramsey)
    • ST_GeoHash() returns a signature for geometries (Paul Ramsey)
    • GTK+ multi-platform GUI for shape file loading (Paul Ramsey)
    • ST_LineCrossingDirection() returns crossing directions (Paul Ramsey)
    • ST_LocateBetweenElevations() returns sub-string based on Z-ordinate. (Paul Ramsey)
    • Geometry parser returns explicit error message about location of syntax errors (Mark Cave-Ayland)
    • ST_AsGeoJSON() return JSON formatted geometry (Olivier Courtin)
    • Populate_Geometry_Columns() -- automatically add records to geometry_columns for TABLES and VIEWS (Kevin Neufeld)
    • ST_MinimumBoundingCircle() -- returns the smallest circle polygon that can encompass a geometry (Bruce Rindahl)
  • Enhancements
    • Core geometry system moved into independent library, liblwgeom. (Mark Cave-Ayland)
    • New build system uses PostgreSQL "pgxs" build bootstrapper. (Mark Cave-Ayland)
    • Debugging framework formalized and simplified. (Mark Cave-Ayland)
    • All build-time #defines generated at configure time and placed in headers for easier cross-platform support (Mark Cave-Ayland)
    • Logging framework formalized and simplified (Mark Cave-Ayland)
    • Expanded and more stable support for CIRCULARSTRING, COMPOUNDCURVE and CURVEPOLYGON, better parsing, wider support in functions (Mark Leslie & Mark Cave-Ayland)
    • Improved support for OpenSolaris builds (Paul Ramsey)
    • Improved support for MSVC builds (Mateusz Loskot)
    • Updated KML support (Olivier Courtin)
    • Unit testing framework for liblwgeom (Paul Ramsey)
    • New testing framework to comprehensively exercise every PostGIS function (Regine Obe)
    • Performance improvements to all geometry aggregate functions (Paul Ramsey)
    • Support for the upcoming PostgreSQL 8.4 (Mark Cave-Ayland, Talha Bin Rizwan)
    • Shp2pgsql and pgsql2shp re-worked to depend on the common parsing/unparsing code in liblwgeom (Mark Cave-Ayland)
    • Use of PDF DbLatex to build PDF docs and preliminary instructions for build (Jean David Techer)
    • Automated User documentation build (PDF and HTML) and Developer Doxygen Documentation (Kevin Neufeld)
    • Automated build of document images using ImageMagick from WKT geometry text files (Kevin Neufeld)
    • More attractive CSS for HTML documentation (Dane Springmeyer)
  • Bug fixes

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