<?xml version="1.0" encoding="UTF-8"?>
<appendix id="release_notes">
  <title>Appendix</title>
    <subtitle>Release Notes</subtitle>
    
    <sect1>
        <title>Release 2.1.4</title>
        <para>Release date: 2014-09-10</para>
        <para>This is a bug fix and performance improvement release.</para>
        <simplesect>
            <title>Enhancements</title>
            <para>#2745, Speedup ST_Simplify calls against points</para>
            <para>#2747, Support for GDAL 2.0</para>
            <para>#2749, Make rtpostgis_upgrade_20_21.sql ACID</para>
            <para>#2811, Do not specify index names when loading shapefiles/rasters</para>
            <para>#2829, Shortcut ST_Clip(raster) if geometry fully contains the raster
                       and no NODATA specified</para>
            <para>#2895, Raise cost of ST_ConvexHull(raster) to 300 for better query plans</para>
        </simplesect>

        <simplesect>
              <title>Bug Fixes</title>
              <para>#2605, armel: _ST_Covers() returns true for point in hole</para> 
              <para>#2911, Fix output scale on ST_Rescale/ST_Resample/ST_Resize of rasters
                       with scale 1/-1 and offset 0/0.</para>
              <para>Fix crash in ST_Union(raster)</para>
              <para>#2704, ST_GeomFromGML() does not work properly with array of gml:pos
                (Even Roualt)</para>
              <para>#2708, updategeometrysrid doesn't update srid check when schema
                       not specified. Patch from Marc Jansen</para>
              <para>#2720, lwpoly_add_ring should update maxrings after realloc</para>
              <para>#2759, Fix postgis_restore.pl handling of multiline object comments
                       embedding sql comments</para>
              <para>#2774, fix undefined behavior in ptarray_calculate_gbox_geodetic
              - Fix potential memory fault in ST_MakeValid</para>
              <para>#2784, Fix handling of bogus argument to --with-sfcgal</para>
              <para>#2772, Premature memory free in RASTER_getBandPath (ST_BandPath)</para>
              <para>#2755, Fix regressions tests against all versions of SFCGAL</para>
              <para>#2775, lwline_from_lwmpoint leaks memory</para> 
              <para>#2802, ST_MapAlgebra checks for valid callback function return value</para>
              <para>#2803, ST_MapAlgebra handles no userarg and STRICT callback function</para>
              <para>#2834, ST_Estimated_Extent and mixedCase table names (regression bug)</para>
              <para>#2845, Bad geometry created from ST_AddPoint</para>
              <para>#2870, Binary insert into geography column results geometry being inserted</para>
              <para>#2872, make install builds documentation (Greg Troxell)</para>
              <para>#2819, find isfinite or replacement on Centos5 / Solaris</para>
              <para>#2899, geocode limit 1 not returning best answer (tiger geocoder)</para>
              <para>#2903, Unable to compile on FreeBSD</para> 
              <para>#2927  reverse_geocode not filling in direction prefix (tiger geocoder)
                       get rid of deprecated ST_Line_Locate_Point called</para> 
         </simplesect>
    </sect1>
    
    <sect1>
      <title>Release 2.1.3</title>
      <para>Release date: 2014/05/13</para>
      <para>This is a bug fix and security release.</para>
      <simplesect>
        <title>Important changes</title>
<para>
Starting with this version offline raster access and use of GDAL drivers
are disabled by default.
</para>

<para>
An environment variable is introduced to allow for enabling
specific GDAL drivers: POSTGIS_GDAL_ENABLED_DRIVERS.
By default, all GDAL drivers are disabled
</para>

<para>
An environment variable is introduced to allow for enabling
out-db raster bands: POSTGIS_ENABLE_OUTDB_RASTERS.
By default, out-db raster bands are disabled
</para>

<para>
The environment variables must be set for the PostgreSQL process,
and determines the behavior of the whole cluster.
</para>
      </simplesect>
      <simplesect>
        <title>Bug Fixes</title>
<para>#2697, invalid GeoJSON Polygon input crashes server process</para>
<para>#2700, Fix dumping of higher-dimension datasets with null rows</para>
<para>#2706, ST_DumpPoints of EMPTY geometries crashes server</para>
      </simplesect>
    </sect1>
    <sect1>
      <title>Release 2.1.2</title>
      <para>Release date: 2014/03/31</para>
      <para>This is a bug fix release, addressing issues that have been filed since the 2.1.1 release.</para>
      <simplesect>
        <title>Bug Fixes</title>
            <para>#2666, Error out at configure time if no SQL preprocessor can be found</para>
            <para>#2534, st_distance returning incorrect results for large geographies</para>
            <para>#2539, Check for json-c/json.h presence/usability before json/json.h</para>
            <para>#2543, invalid join selectivity error from simple query</para>
            <para>#2546, GeoJSON with string coordinates parses incorrectly </para>
            <para>#2547, Fix ST_Simplify(TopoGeometry) for hierarchical topogeoms</para>
            <para>#2552, Fix NULL raster handling in ST_AsPNG, ST_AsTIFF and
                       ST_AsJPEG</para>
            <para>#2555, Fix parsing issue of range arguments of ST_Reclass</para>
            <para>#2556, geography ST_Intersects results depending on insert order</para>
            <para>#2580, Do not allow installing postgis twice in the same database</para>
            <para>#2589, Remove use of unnecessary void pointers</para>
            <para>#2607, Cannot open more than 1024 out-db files in one process</para>
            <para>#2610, Ensure face splitting algorithm uses the edge index</para>
            <para>#2615, EstimatedExtent (and hence, underlying stats) gathering wrong bbox</para>
            <para>#2619, Empty rings array in GeoJSON polygon causes crash</para>
            <para>#2634, regression in sphere distance code</para>
            <para>#2638, Geography distance on M geometries sometimes wrong</para>
            <para>#2648, #2653, Fix topology functions when "topology" is not in search_path</para>
            <para>#2654, Drop deprecated calls from topology</para>
            <para>#2655, Let users without topology privileges call postgis_full_version()</para>
            <para>#2674, Fix missing operator = and hash_raster_ops opclass on raster</para>
            <para>#2675, #2534, #2636, #2634, #2638, Geography distance issues with tree optimization</para>
      </simplesect>
      <simplesect>
        <title>Enhancements</title>
          <para>#2494, avoid memcopy in GiST index (hayamiz)</para>
          <para>#2560, soft upgrade: avoid drop/recreate of aggregates that hadn't changed</para>
      </simplesect>
    </sect1>
    <sect1>
      <title>Release 2.1.1</title>
      <para>Release date: 2013/11/06</para>
      <para>This is a bug fix release, addressing issues that have been filed since the 2.1.0 release.</para>
      <simplesect>
        <title>Important Changes</title>
        <para>#2514, Change raster license from GPL v3+ to v2+, allowing distribution of PostGIS Extension as GPLv2.</para>
      </simplesect>
      <simplesect>
        <title>Bug Fixes</title>
        <para>#2396, Make regression tests more endian-agnostic</para>
        <para>#2434, Fix ST_Intersection(geog,geog) regression in rare cases</para>
        <para>#2454, Fix behavior of ST_PixelAsXXX functions regarding exclude_nodata_value parameter</para>
        <para>#2489, Fix upgrades from 2.0 leaving stale function signatures</para>
        <para>#2525, Fix handling of SRID in nested collections</para>
        <para>#2449, Fix potential infinite loop in index building</para>
        <para>#2493, Fix behavior of ST_DumpValues when passed an empty raster</para>
        <para>#2502, Fix postgis_topology_scripts_installed() install schema</para>
        <para>#2504, Fix segfault on bogus pgsql2shp call </para>
        <para>#2512, Support for foreign tables and materialized views in raster_columns and raster_overviews</para>
      </simplesect>
      <simplesect>
        <title>Enhancements</title>
        <para>#2478, support for tiger 2013</para>
        <para>#2463, support for exact length calculations on arc geometries</para>
      </simplesect>
    </sect1>    
    <sect1>
		  <title>Release 2.1.0</title>
		  <para>Release date: 2013/08/17</para>
		  <para>This is a minor release addressing both bug fixes and performance and functionality enhancements addressing issues since 2.0.3 release.
		If you are upgrading from 2.0+, only a soft upgrade is required.  If you are upgrading from 1.5 or earlier, a hard upgrade is required.</para>
		<simplesect>	
    <title>Important / Breaking Changes</title>
     <para>#1653, Removed srid parameter from ST_Resample(raster) and variants
               with reference raster no longer apply reference raster's SRID.</para>
     <para>#1962 ST_Segmentize - As a result of 
              the introduction of geography support, The construct:
         <code>SELECT ST_Segmentize('LINESTRING(1 2, 3 4)',0.5);</code> 
        will result in ambiguous function error</para>
     <para>#2026, ST_Union(raster) now unions all bands of all rasters</para>
     <para>#2089, liblwgeom: lwgeom_set_handlers replaces lwgeom_init_allocators.</para>
     <para>#2150, regular_blocking is no longer a constraint. column of same name
               in raster_columns now checks for existance of spatially_unique
               and coverage_tile constraints</para>
     <para>ST_Intersects(raster, geometry) behaves in the same manner as
        ST_Intersects(geometry, raster).</para>
     <para>point variant of ST_SetValue(raster) previously did not check SRID
        of input geometry and raster.</para>
     <para>ST_Hillshade parameters azimuth and altitude are now in degrees
        instead of radians.</para>
     <para>ST_Slope and ST_Aspect return pixel values in degrees instead of radians.</para>
      <para>#2104, ST_World2RasterCoord, ST_World2RasterCoordX and
               ST_World2RasterCoordY renamed to ST_WorldToRasterCoord,
               ST_WorldToRasterCoordX and ST_WorldToRasterCoordY.
               ST_Raster2WorldCoord, ST_Raster2WorldCoordX and
               ST_Raster2WorldCoordY renamed to ST_RasterToWorldCoord,
               ST_RasterToWorldCoordX and ST_RasterToWorldCoordY</para>
     <para>ST_Estimated_Extent renamed to ST_EstimatedExtent</para>
     <para>ST_Line_Interpolate_Point renamed to ST_LineInterpolatePoint</para>
     <para>ST_Line_Substring renamed to ST_LineSubstring</para>
     <para>ST_Line_Locate_Point renamed to ST_LineLocatePoint</para>
     <para>ST_Force_XXX renamed to ST_ForceXXX</para>
     <para>ST_MapAlgebraFctNgb and 1 and 2 raster variants of ST_MapAlgebraFct.
        Use ST_MapAlgebra instead</para>
     <para>1 and 2 raster variants of ST_MapAlgebraExpr.
        Use expression variants of ST_MapAlgebra instead</para>
  </simplesect>    

  <simplesect>
    <title>New Features</title>
   <para>- Refer to http://postgis.net/docs/manual-2.1/PostGIS_Special_Functions_Index.html#NewFunctions_2_1
     for complete list of new functions</para>
   <para>#310, ST_DumpPoints converted to a C function (Nathan Wagner) and much faster</para>
   <para>#739, UpdateRasterSRID()</para>
   <para>#945, improved join selectivity, N-D selectivity calculations, 
      user accessible selectivity and stats reader functions for 
      testing (Paul Ramsey / OpenGeo)</para>
   <para>toTopoGeom with TopoGeometry sink (Sandro Santilli / Vizzuality)</para>
   <para>clearTopoGeom (Sandro Santilli / Vizzuality)</para>
   <para>ST_Segmentize(geography) (Paul Ramsey / OpenGeo)</para>
   <para>ST_DelaunayTriangles (Sandro Santilli / Vizzuality)</para>
   <para>ST_NearestValue, ST_Neighborhood (Bborie Park / UC Davis)</para>
   <para>ST_PixelAsPoint, ST_PixelAsPoints (Bborie Park / UC Davis)</para>
   <para>ST_PixelAsCentroid, ST_PixelAsCentroids (Bborie Park / UC Davis)</para>
   <para>ST_Raster2WorldCoord, ST_World2RasterCoord (Bborie Park / UC Davis)</para>
   <para>Additional raster/raster spatial relationship functions
      (ST_Contains, ST_ContainsProperly, ST_Covers, ST_CoveredBy, ST_Disjoint,
      ST_Overlaps, ST_Touches, ST_Within, ST_DWithin, ST_DFullyWithin)
      (Bborie Park / UC Davis)</para>
   <para>Added array variants of ST_SetValues() to set many pixel values of a band
      in one call (Bborie Park / UC Davis)</para>
   <para>#1293, ST_Resize(raster) to resize rasters based upon width/height</para>
   <para>#1627, package tiger_geocoder as a PostgreSQL extension</para>
   <para>#1643, #2076, Upgrade tiger geocoder to support loading tiger 2011 and 2012 
      (Regina Obe / Paragon Corporation) Funded by Hunter Systems Group</para>
   <para>GEOMETRYCOLLECTION support for ST_MakeValid (Sandro Santilli / Vizzuality)</para>
   <para>#1709, ST_NotSameAlignmentReason(raster, raster)</para>
   <para>#1818, ST_GeomFromGeoHash and friends (Jason Smith (darkpanda))</para>
   <para>#1856, reverse geocoder rating setting for prefer numbered highway name</para>
   <para>ST_PixelOfValue (Bborie Park / UC Davis)</para>
   <para>Casts to/from PostgreSQL geotypes (point/path/polygon).</para>
   <para>Added geomval array variant of ST_SetValues() to set many pixel values of
      a band using a set of geometries and corresponding values in one call
      (Bborie Park / UC Davis)</para>
   <para>ST_Tile(raster) to break up a raster into tiles (Bborie Park / UC Davis)</para>
   <para>#1895, new r-tree node splitting algorithm (Alex Korotkov)</para>
   <para>#2011, ST_DumpValues to output raster as array (Bborie Park / UC Davis)</para>
   <para>#2018, ST_Distance support for CircularString, CurvePolygon, MultiCurve,
      MultiSurface, CompoundCurve </para>
   <para>#2030, n-raster (and n-band) ST_MapAlgebra (Bborie Park / UC Davis)</para>
   <para>#2193, Utilize PAGC parser as drop in replacement for tiger normalizer 
              (Steve Woodbridge, Regina Obe)</para>
   <para>#2210, ST_MinConvexHull(raster)</para>
   <para>lwgeom_from_geojson in liblwgeom (Sandro Santilli / Vizzuality)</para>
   <para>#1687, ST_Simplify for TopoGeometry (Sandro Santilli / Vizzuality)</para>
   <para>#2228, TopoJSON output for TopoGeometry (Sandro Santilli / Vizzuality)</para>
   <para>#2123, ST_FromGDALRaster</para>
   <para>#613, ST_SetGeoReference with numerical parameters instead of text</para>
   <para>#2276, ST_AddBand(raster) variant for out-db bands</para>
   <para>#2280, ST_Summary(raster)</para>
   <para>#2163, ST_TPI for raster (Nathaniel Clay)</para>
   <para>#2164, ST_TRI for raster (Nathaniel Clay)</para>
   <para>#2302, ST_Roughness for raster (Nathaniel Clay)</para>
   <para>#2290, ST_ColorMap(raster) to generate RGBA bands</para>
   <para>#2254, Add SFCGAL backend support.
             (Backend selection throught postgis.backend var)
             Functions available both throught GEOS or SFCGAL: 
              ST_Intersects, ST_3DIntersects, ST_Intersection, ST_Area, 
              ST_Distance, ST_3DDistance
             New functions available only with SFCGAL backend:
              ST_3DIntersection, ST_Tesselate, ST_3DArea, ST_Extrude, ST_ForceLHR
              ST_Orientation, ST_Minkowski, ST_StraightSkeleton
              postgis_sfcgal_version
             New function available in PostGIS: ST_ForceSFS
             (Olivier Courtin and Hugo Mercier / Oslandia)</para>
  </simplesect>
  
  <simplesect>
    <title>Enhancements</title>
         <para>For detail of new functions and function improvements, please refer to <xref linkend="NewFunctions_2_1" />.</para>
         <para>Much faster raster ST_Union,  ST_Clip and many more function additions operations</para>
         <para>For geometry/geography better planner selectivity and a lot more functions.</para>
  
   <para>#823,  tiger geocoder: Make loader_generate_script download portion 
             less greedy</para>
   <para>#826,  raster2pgsql no longer defaults to padding tiles. Flag -P
             can be used to pad tiles</para>
   <para>#1363, ST_AddBand(raster, ...) array version rewritten in C</para>
   <para>#1364, ST_Union(raster, ...) aggregate function rewritten in C</para>
   <para>#1655, Additional default values for parameters of ST_Slope</para>
   <para>#1661, Add aggregate variant of ST_SameAlignment</para>
   <para>#1719, Add support for Point and GeometryCollection ST_MakeValid inputs</para>
   <para>#1780, support ST_GeoHash for geography</para>
   <para>#1796, Big performance boost for distance calculations in geography</para>
   <para>#1802, improved function interruptibility.</para>
   <para>#1823, add parameter in ST_AsGML to use id column for GML 3 output 
             (become mandatory since GML 3.2.1)</para>
   <para>#1856, tiger geocoder: reverse geocoder rating setting for prefer 
             numbered highway name</para>
   <para>#1938, Refactor basic ST_AddBand to add multiple new bands in one call</para>
   <para>#1978, wrong answer when calculating length of a closed circular 
             arc (circle)</para>
   <para>#1989, Preprocess input geometry to just intersection with raster
             to be clipped</para>
   <para>#2021, Added multi-band support to ST_Union(raster, ...) aggregate function</para>
   <para>#2006, better support of ST_Area(geography) over poles and dateline</para>
   <para>#2065, ST_Clip(raster, ...) now a C function</para>
   <para>#2069, Added parameters to ST_Tile(raster) to control padding of tiles</para>
   <para>#2078, New variants of ST_Slope, ST_Aspect and ST_HillShade to provide
             solution to handling tiles in a coverage</para>
   <para>#2097, Added RANGE uniontype option for ST_Union(raster)</para>
   <para>#2105, Added ST_Transform(raster) variant for aligning output to
             reference raster</para>
   <para>#2119, Rasters passed to ST_Resample(), ST_Rescale(), ST_Reskew(),
             and ST_SnapToGrid() no longer require an SRID</para>
   <para>#2141, More verbose output when constraints fail to be added
             to a raster column</para>
   <para>#2143, Changed blocksize constraint of raster to allow multiple values</para>
   <para>#2148, Addition of coverage_tile constraint for raster</para>
   <para>#2149, Addition of spatially_unique constraint for raster</para>
   <para>TopologySummary output now includes unregistered layers and a count
             of missing TopoGeometry objects from their natural layer.</para>
   <para>ST_HillShade(), ST_Aspect() and ST_Slope() have one new optional 
             parameter to interpolate NODATA pixels before running the
             operation.</para>
   <para>Point variant of ST_SetValue(raster) is now a wrapper around geomval 
             variant of ST_SetValues(rast).</para>
   <para>Proper support for raster band's isnodata flag in core API and loader.</para>
   <para>Additional default values for parameters of ST_Aspect and ST_HillShade</para>
   <para>#2178, ST_Summary now advertises presence of known srid with an [S] flag</para>
   <para>#2202, Make libjson-c optional (--without-json configure switch)</para>
   <para>#2213, Add support libjson-c 0.10+</para>
   <para>#2231, raster2pgsql supports user naming of filename column with -n</para>
   <para>#2200, ST_Union(raster, uniontype) unions all bands of all rasters</para>
   <para>#2264, postgis_restore.pl support for restoring into databases
             with postgis in a custom schema</para>
   <para>#2244, emit warning when changing raster's georeference if raster has
             out-db bands</para>
   <para>#2222, add parameter OutAsIn to flag whether ST_AsBinary should
             return out-db bands as in-db bands</para>
  </simplesect>
  
  <simplesect><title>Fixes</title>
   <para>#1839, handling of subdatasets in GeoTIFF in raster2pgsql.</para>
   <para>#1840, fix logic of when to compute # of tiles in raster2pgsql.</para>
   <para>#1870, align the docs and actual behavior of raster's ST_Intersects</para>
   <para>#1872, fix ST_ApproxSummarystats to prevent division by zero</para>
   <para>#1875, ST_SummaryStats returns NULL for all parameters except count
             when count is zero</para>
   <para>#1932, fix raster2pgsql of syntax for index tablespaces</para>
   <para>#1936, ST_GeomFromGML on CurvePolygon causes server crash</para>
   <para>#1939, remove custom data types: summarystats, histogram, quantile, 
             valuecount</para>
   <para>#1951, remove crash on zero-length linestrings</para>
   <para>#1957, ST_Distance to a one-point LineString returns NULL</para> 
   <para>#1976, Geography point-in-ring code overhauled for more reliability</para>
   <para>#1981, cleanup of unused variables causing warnings with gcc 4.6+</para>
   <para>#1996, support POINT EMPTY in GeoJSON output</para>
   <para>#2062, improve performance of distance calculations</para> 
   <para>#2057, Fixed linking issue for raster2psql to libpq</para>
   <para>#2077, Fixed incorrect values returning from ST_Hillshade()</para>
   <para>#2019, ST_FlipCoordinates does not update bbox</para>
   <para>#2100, ST_AsRaster may not return raster with specified pixel type</para>
   <para>#2126, Better handling of empty rasters from ST_ConvexHull()</para>
   <para>#2165, ST_NumPoints regression failure with CircularString</para>
   <para>#2168, ST_Distance is not always commutative</para>
   <para>#2182, Fix issue with outdb rasters with no SRID and ST_Resize</para>
   <para>#2188, Fix function parameter value overflow that caused problems
             when copying data from a GDAL dataset</para>
   <para>#2198, Fix incorrect dimensions used when generating bands of out-db
             rasters in ST_Tile()</para>
   <para>#2201, ST_GeoHash wrong on boundaries</para>
   <para>#2203, Changed how rasters with unknown SRID and default geotransform
             are handled when passing to GDAL Warp API</para>
   <para>#2215, Fixed raster exclusion constraint for conflicting name of
             implicit index</para>
   <para>#2251, Fix bad dimensions when rescaling rasters with default
             geotransform matrix</para>
   <para>#2133, Fix performance regression in expression variant of ST_MapAlgebra</para>
   <para>#2257, GBOX variables not initialized when testing with empty geometries</para>
   <para>#2271, Prevent parallel make of raster</para>
   <para>#2282, Fix call to undefined function nd_stats_to_grid() in debug mode</para>
   <para>#2307, ST_MakeValid outputs invalid geometries</para>
   <para>#2309, Remove confusing INFO message when trying to get SRS info</para>
   <para>#2336, FIPS 20 (KS) causes wildcard expansion to wget all files</para>
   <para>#2348, Provide raster upgrade path for 2.0 to 2.1</para>
   <para>#2351, st_distance between geographies wrong</para>
   <para>#2359, Fix handling of schema name when adding overview constraints</para>
   <para>#2371, Support GEOS versions with more than 1 digit in micro</para>
   <para>#2383, Remove unsafe use of \' from raster warning message</para>
   <para>#2384, Incorrect variable datatypes for ST_Neighborhood</para>
  </simplesect>
    <simplesect><title>Known Issues</title>
      <para>#2111, Raster bands can only reference the first 256 bands of out-db rasters</para>
		</simplesect>
	 </sect1>
	 
	     <sect1>
       <title>Release 2.0.5</title>
         <para>Release date: 2014/03/31</para>
         <para>This is a bug fix release, addressing issues that have been filed since the 2.0.4 release. If you are using PostGIS 2.0+ a soft upgrade is required.  For users of PostGIS 1.5 or below, a hard upgrade is required.</para>
       <simplesect>
         <title>Bug Fixes</title>
         <para>#2494, avoid memcpy in GIST index</para>
         <para>#2502, Fix postgis_topology_scripts_installed() install schema</para>
         <para>#2504, Fix segfault on bogus pgsql2shp call </para>
         <para>#2528, Fix memory leak in ST_Split / lwline_split_by_line</para>
         <para>#2532, Add missing raster/geometry commutator operators</para>
         <para>#2533, Remove duplicated signatures</para>
         <para>#2552, Fix NULL raster handling in ST_AsPNG, ST_AsTIFF and ST_AsJPEG</para>
         <para>#2555, Fix parsing issue of range arguments of ST_Reclass</para>
         <para>#2589, Remove use of unnecessary void pointers</para>
         <para>#2607, Cannot open more than 1024 out-db files in process</para>
         <para>#2610, Ensure face splitting algorithm uses the edge index </para>
         <para>#2619, Empty ring array in GeoJSON polygon causes crash</para>
         <para>#2638, Geography distance on M geometries sometimes wrong</para>
       </simplesect>
       <simplesect>
         <title>Important Changes</title>
         <para>##2514, Change raster license from GPL v3+ to v2+, allowing distribution of PostGIS Extension as GPLv2.</para>
       </simplesect>
     </sect1>

  <sect1>
    <title>Release 2.0.4</title>
      <para>Release date: 2013/09/06</para>
      <para>This is a bug fix release, addressing issues that have been filed since the 2.0.3 release. If you are using PostGIS 2.0+ a soft upgrade is required.  For users of PostGIS 1.5 or below, a hard upgrade is required.</para>
    <simplesect>
      <title>Bug Fixes</title>
        <para>#2110, Equality operator between EMPTY and point on origin</para>
        <para>Allow adding points at precision distance with TopoGeo_addPoint</para>
        <para>#1968, Fix missing edge from toTopoGeom return</para>
        <para>#2165, ST_NumPoints regression failure with CircularString</para>
        <para>#2168, ST_Distance is not always commutative</para>
        <para>#2186, gui progress bar updates too frequent</para>
        <para>#2201, ST_GeoHash wrong on boundaries</para>
        <para>#2257, GBOX variables not initialized when testing with empty geometries</para>
        <para>#2271, Prevent parallel make of raster</para>
        <para>#2267, Server crash from analyze table</para>
        <para>#2277, potential segfault removed</para>
        <para>#2307, ST_MakeValid outputs invalid geometries</para>
        <para>#2351, st_distance between geographies wrong</para>
        <para>#2359, Incorrect handling of schema for overview constraints</para>
        <para>#2371, Support GEOS versions with more than 1 digit in micro</para>
        <para>#2372, Cannot parse space-padded KML coordinates</para>
        <para>Fix build with systemwide liblwgeom installed</para>
        <para>#2383, Fix unsafe use of \' in warning message</para>
        <para>#2410, Fix segmentize of collinear curve</para>
        <para>#2412, ST_LineToCurve support for lines with less than 4 vertices</para>
        <para>#2415, ST_Multi support for COMPOUNDCURVE and CURVEPOLYGON</para>
        <para>#2420, ST_LineToCurve: require at least 8 edges to define a full circle</para>
        <para>#2423, ST_LineToCurve: require all arc edges to form the same angle</para>
        <para>#2424, ST_CurveToLine: add support for COMPOUNDCURVE in MULTICURVE</para>
        <para>#2427, Make sure to retain first point of curves on ST_CurveToLine</para>
    </simplesect>
    <simplesect>
      <title>Enhancements</title>
      <para>#2269, Avoid uselessly detoasting full geometries on ANALYZE</para>
    </simplesect>
    <simplesect>
      <title>Known Issues</title>
      <para>#2111, Raster bands can only reference the first 256 bands of out-db rasters</para>
    </simplesect>
  </sect1>
  
  <sect1>
		<title>Release 2.0.3</title>
		<para>Release date: 2013/03/01</para>
		<para>This is a bug fix release, addressing issues that have been filed since the 2.0.2 release. If you are using PostGIS 2.0+ a soft upgrade is required.  For users of PostGIS 1.5 or below, a hard upgrade is required.</para>
		<simplesect>
		 	<title>Bug Fixes</title>
  <para>#2126, Better handling of empty rasters from ST_ConvexHull()</para>
  <para>#2134, Make sure to process SRS before passing it off to GDAL functions</para>
  <para>Fix various memory leaks in liblwgeom</para>
  <para>#2173, Fix robustness issue in splitting a line with own vertex also affecting topology building (#2172)</para>
  <para>#2174, Fix usage of wrong function lwpoly_free()</para>
  <para>#2176, Fix robustness issue with ST_ChangeEdgeGeom</para>
  <para>#2184, Properly copy topologies with Z value </para>
  <para>postgis_restore.pl support for mixed case geometry column name in dumps</para>
  <para>#2188, Fix function parameter value overflow that caused problems when copying data from a GDAL dataset</para>
  <para>#2216, More memory errors in MultiPolygon GeoJSON parsing (with holes)</para>
  <para>Fix Memory leak in GeoJSON parser</para>
		</simplesect>
		<simplesect>
			 <title>Enhancements</title>
  <para>#2141, More verbose output when constraints fail to be added to a raster column</para>
  <para>Speedup ST_ChangeEdgeGeom</para>
		</simplesect>
	  </sect1>
      <sect1>
		<title>Release 2.0.2</title>
		<para>Release date: 2012/12/03</para>
		<para>This is a bug fix release, addressing issues that have been filed since the 2.0.1 release.</para>
		<simplesect>
		 	<title>Bug Fixes</title>
		 	<para>#1287, Drop of "gist_geometry_ops" broke a few clients
     package of legacy_gist.sql for these cases</para>
 			 <para>#1391, Errors during upgrade from 1.5</para>
 			 <para>#1828, Poor selectivity estimate on ST_DWithin</para>
 			 <para>#1838, error importing tiger/line data</para>
 			 <para>#1869, ST_AsBinary is not unique added to legacy_minor/legacy.sql scripts</para>
 			 <para>#1885, Missing field from tabblock table in tiger2010 census_loader.sql</para>
 			 <para>#1891, Use LDFLAGS environment when building liblwgeom</para>
 			 <para>#1900, Fix pgsql2shp for big-endian systems </para>
 			 <para>#1932, Fix raster2pgsql for invalid syntax for setting index tablespace</para>
 			 <para>#1936, ST_GeomFromGML on CurvePolygon causes server crash</para>
 			 <para>#1955, ST_ModEdgeHeal and ST_NewEdgeHeal for doubly connected edges</para>
 			 <para>#1957, ST_Distance to a one-point LineString returns NULL</para>
 			 <para>#1976, Geography point-in-ring code overhauled for more reliability</para>
 			 <para>#1978, wrong answer calculating length of closed circular arc (circle)</para>
 			 <para>#1981, Remove unused but set variables as found with gcc 4.6+</para>
 			 <para>#1987, Restore 1.5.x behaviour of ST_Simplify</para> 
 			 <para>#1989, Preprocess input geometry to just intersection with raster
           to be clipped</para>
 			 <para>#1991, geocode really slow on PostgreSQL 9.2</para>
 			 <para>#1996, support POINT EMPTY in GeoJSON output</para>
 			 <para>#1998, Fix ST_{Mod,New}EdgeHeal joining edges sharing both endpoints</para>
 			 <para>#2001, ST_CurveToLine has no effect if the geometry doesn't actually contain an arc</para>
 			 <para>#2015, ST_IsEmpty('POLYGON(EMPTY)') returns False</para>
 			 <para>#2019, ST_FlipCoordinates does not update bbox</para>
 			 <para>#2025, Fix side location conflict at TopoGeo_AddLineString</para> 
 			 <para>#2026, improve performance of distance calculations</para>
 			 <para>#2033, Fix adding a splitting point into a 2.5d topology </para>
 			 <para>#2051, Fix excess of precision in ST_AsGeoJSON output</para>
 			 <para>#2052, Fix buffer overflow in lwgeom_to_geojson</para>
 			 <para>#2056, Fixed lack of SRID check of raster and geometry in ST_SetValue()</para>
 			 <para>#2057, Fixed linking issue for raster2psql to libpq</para>
 			 <para>#2060, Fix "dimension" check violation by GetTopoGeomElementArray</para>
 			 <para>#2072, Removed outdated checks preventing ST_Intersects(raster) from
           working on out-db bands</para>
 			 <para>#2077, Fixed incorrect answers from ST_Hillshade(raster) </para>
 			 <para>#2092, Namespace issue with ST_GeomFromKML,ST_GeomFromGML for libxml 2.8+</para>
 			 <para>#2099, Fix double free on exception in ST_OffsetCurve</para> 
 			 <para>#2100, ST_AsRaster() may not return raster with specified pixel type</para>
			 <para>#2108, Ensure ST_Line_Interpolate_Point always returns POINT</para>
			 <para>#2109, Ensure ST_Centroid always returns POINT</para>
			 <para>#2117, Ensure ST_PointOnSurface always returns POINT</para>
			 <para>#2129, Fix SRID in ST_Homogenize output with collection input</para>
       <para>#2130, Fix memory error in MultiPolygon GeoJson parsing</para>

 			 <para>Update URL of Maven jar</para>
		</simplesect>
		<simplesect>
			 <title>Enhancements</title>
			 <para>#1581, ST_Clip(raster, ...) no longer imposes NODATA on a band if the
           corresponding band from the source raster did not have NODATA</para>
  			 <para>#1928, Accept array properties in GML input multi-geom input
    (Kashif Rasul and Shoaib Burq / SpacialDB)</para>
  			 <para>#2082, Add indices on start_node and end_node of topology edge tables</para>
  			 <para>#2087, Speedup topology.GetRingEdges using a recursive CTE</para> 	
		</simplesect>
	</sect1>
    <sect1>
		<title>Release 2.0.1</title>
		<para>Release date: 2012/06/22</para>
		<para>This is a bug fix release, addressing issues that have been filed since the 2.0.0 release.</para>
		<simplesect>
			 <title>Bug Fixes</title>
			 <para>#1264, fix st_dwithin(geog, geog, 0). </para>
			 <para>#1468  shp2pgsql-gui table column schema get shifted</para>
			 <para>#1694, fix building with clang. (vince)</para>
			 <para>#1708, improve restore of pre-PostGIS 2.0 backups.</para>
			 <para>#1714, more robust handling of high topology tolerance.</para>
			 <para>#1755, ST_GeographyFromText support for higher dimensions.</para>
			 <para>#1759, loading transformed shapefiles in raster enabled db.</para>
			 <para>#1761, handling of subdatasets in NetCDF, HDF4 and HDF5 in raster2pgsql.</para>
			 <para>#1763, topology.toTopoGeom use with custom search_path.</para>
			 <para>#1766, don't let ST_RemEdge* destroy peripheral TopoGeometry objects.</para>
			 <para>#1774, Clearer error on setting an edge geometry to an invalid one.</para>
			 <para>#1775, ST_ChangeEdgeGeom collision detection with 2-vertex target.</para>
			 <para>#1776, fix ST_SymDifference(empty, geom) to return geom.</para>
			 <para>#1779, install SQL comment files.</para>
			 <para>#1782, fix spatial reference string handling in raster.</para>
			 <para>#1789, fix false edge-node crossing report in ValidateTopology.</para>
			 <para>#1790, fix toTopoGeom handling of duplicated primitives.</para>
			 <para>#1791, fix ST_Azimuth with very close but distinct points.</para>
			 <para>#1797, fix (ValidateTopology(xxx)).* syntax calls.</para>
			 <para>#1805, put back the 900913 SRID entry.</para>
			 <para>#1813, Only show readable relations in metadata tables.</para> 
			 <para>#1819, fix floating point issues with ST_World2RasterCoord and
					   ST_Raster2WorldCoord variants.</para>
			 <para>#1820  compilation on 9.2beta1.</para>
			 <para>#1822, topology load on PostgreSQL 9.2beta1.</para>
			 <para>#1825, fix prepared geometry cache lookup</para>
			 <para>#1829, fix uninitialized read in GeoJSON parser</para>
			 <para>#1834, revise postgis extension to only backup 
					   user specified spatial_ref_sys</para>
			 <para>#1839, handling of subdatasets in GeoTIFF in raster2pgsql.</para>
			 <para>#1840, fix logic of when to compute # of tiles in raster2pgsql.</para>
			 <para>#1851, fix spatial_ref_system parameters for EPSG:3844</para>
			 <para>#1857, fix failure to detect endpoint mismatch in ST_AddEdge*Face*</para> 
			 <para>#1865, data loss in postgis_restore.pl when data rows have leading
					   dashes.</para>
			 <para>#1867, catch invalid topology name passed to topogeo_add*</para>
			 <para>#1872, fix ST_ApproxSummarystats to prevent division by zero</para>
			 <para>#1873, fix ptarray_locate_point to return interpolated Z/M values for 
			              on-the-line case</para>
			 <para>#1875, ST_SummaryStats returns NULL for all parameters except count 
			              when count is zero </para>
			 <para>#1881, shp2pgsql-gui -- editing a field sometimes triggers 
			 			  removing row</para>
           	 <para>#1883, Geocoder install fails trying to run 
           create_census_base_tables() (Brian Panulla)</para>
		</simplesect>
		<simplesect>
			 <title>Enhancements</title>
				<para>More detailed exception message from topology editing functions.</para>
				<para>#1786, improved build dependencies</para> 
				<para>#1806, speedup of ST_BuildArea, ST_MakeValid and ST_GetFaceGeometry.</para>
				<para>#1812, Add lwgeom_normalize in LIBLWGEOM for more stable testing.</para>
		</simplesect>
	  </sect1>
      <sect1>
        <title>Release 2.0.0</title>
        <para>Release date: 2012/04/03</para>
        <para>This is a major release.  A hard upgrade is required.  Yes this means a full dump reload and some special preparations if you are using obsolete functions. Refer
        to <xref linkend="hard_upgrade" /> for details on upgrading.
        Refer to <xref linkend="NewFunctions_2_0" /> for more details and changed/new functions.</para>
       <simplesect>
        	<title>Testers - Our unsung heroes</title>
        	<para>We are most indebted to the numerous members in the PostGIS community 
 	who were brave enough to test out the new features in this release.  
 	No major release can be successful without these folk.</para>
			<para>Below are those who have been most valiant, provided very detailed
			and thorough bug reports,
			and detailed analysis.</para>
<simplelist>
			<member>Andrea Peri - Lots of testing on topology, checking for correctness</member>
			<member>Andreas Forø Tollefsen - raster testing</member>
			<member>Chris English - topology stress testing loader functions</member>
			<member>Salvatore Larosa - topology robustness testing</member>
			<member>Brian Hamlin - Benchmarking 
				(also experimental experimental branches 
					before they are folded into core)
				, general testing of various pieces 
			   including Tiger and Topology. Testing on various server VMs</member>
			<member>Mike Pease -  Tiger geocoder testing - very detailed reports of issues</member>
			<member>Tom van Tilburg - raster testing</member>
</simplelist>
        </simplesect>
        <simplesect>
        	<title>Important / Breaking Changes</title>
        	<para>#722, #302, Most deprecated functions removed (over 250 functions) (Regina Obe, Paul Ramsey)</para>
        	<para>Unknown SRID changed from -1 to 0. (Paul Ramsey)</para>
        	<para> -- (most deprecated in 1.2) removed non-ST variants buffer, length, intersects 
        	 (and internal functions renamed) etc. </para>
        	<para>-- If you have been using deprecated functions CHANGE your apps or suffer the consequences.
     If you don't see a function documented -- it ain't supported or it is an internal function.
     Some constraints in older tables were built with deprecated functions.
     If you restore you may need to rebuild table constraints with populate_geometry_columns().  If you have applications or tools
					that rely on deprecated functions, please refer to <xref linkend="legacy_faq" /> for more details.</para>
		<para>#944 geometry_columns is now a view instead of a table 
    (Paul Ramsey, Regina Obe)
    for tables created the old way reads (srid, type, dims) constraints
    for geometry columns created with type modifiers 
    reads rom column definition</para>
        <para>#1081, #1082, #1084, #1088 - Mangement functions support typmod 
    geometry column creation functions now default to typmod creation
    (Regina Obe)</para>
        <para>#1083 probe_geometry_columns(), rename_geometry_table_constraints(),
        fix_geometry_columns(); removed
    - now obsolete with geometry_column view
    (Regina Obe)</para>
        <para>#817 Renaming old 3D functions to the convention ST_3D (Nicklas Avén)</para>
        <para>#548 (sorta), ST_NumGeometries,ST_GeometryN now returns 1 (or the geometry) instead of null 
     for single geometries (Sandro Santilli, Maxime van Noppen)</para>
        </simplesect>
        <simplesect>
          <title>New Features</title>
          <para><ulink url="http://blog.opengeo.org/2011/09/28/indexed-nearest-neighbour-search-in-postgis/">KNN Gist index based centroid (&lt;-&gt;) and box (&lt;#&gt;) distance operators (Paul Ramsey / funded by Vizzuality)</ulink></para> 
          <para>Support for TIN and PolyHedralSurface and enhancement of many functions to support 3D (Olivier Courtin / Oslandia)</para>
          <para><ulink url="http://trac.osgeo.org/postgis/wiki/WKTRaster/PlanningAndFunding">Raster support integrated and documented</ulink>
          		(Pierre Racine, Jorge Arévalo, Mateusz Loskot, Sandro Santilli, David Zwarg, Regina Obe, Bborie Park)
          		(Company developer and funding: University Laval, Deimos Space, CadCorp,  Michigan Tech Research Institute, Azavea, Paragon Corporation, UC Davis Center for Vectorborne Diseases)</para>
          <para>Making spatial indexes 3D aware - in progress (Paul Ramsey, Mark Cave-Ayland)</para>
          <para>Topology support improved (more functions), documented, testing (Sandro Santilli / Faunalia for RT-SIGTA), Andrea Peri, Regina Obe, Jose Carlos Martinez Llari</para>
          <para>3D relationship and measurement support functions  (Nicklas Avén)</para>
          <para>   ST_3DDistance, ST_3DClosestPoint, ST_3DIntersects, ST_3DShortestLine and more...</para>
          <para>N-Dimensional spatial indexes (Paul Ramsey / OpenGeo)</para>
          <para>ST_Split (Sandro Santilli / Faunalia for RT-SIGTA)</para>
          <para>ST_IsValidDetail (Sandro Santilli / Faunalia for RT-SIGTA)</para>
          <para>ST_MakeValid (Sandro Santilli / Faunalia for RT-SIGTA)</para>
          <para>ST_RemoveRepeatedPoints (Sandro Santilli / Faunalia for RT-SIGTA)</para>
          <para>ST_GeometryN and ST_NumGeometries support for non-collections (Sandro Santilli)</para>
          <para>ST_IsCollection (Sandro Santilli, Maxime van Noppen)</para>
          <para>ST_SharedPaths (Sandro Santilli / Faunalia for RT-SIGTA)</para>
          <para>ST_Snap (Sandro Santilli)</para>
          <para>ST_RelateMatch (Sandro Santilli / Faunalia for RT-SIGTA)</para>
          <para>ST_ConcaveHull (Regina Obe and Leo Hsu / Paragon Corporation)</para>
          <para>ST_UnaryUnion (Sandro Santilli / Faunalia for RT-SIGTA)</para>
          <para>ST_AsX3D (Regina Obe / Arrival 3D funding)</para>
          <para>ST_OffsetCurve (Sandro Santilli, Rafal Magda)</para>
          <para><ulink url="http://blog.opengeo.org/2011/11/21/st_geomfromgeojson/">ST_GeomFromGeoJSON (Kashif Rasul, Paul Ramsey / Vizzuality funding)</ulink></para>
        </simplesect>
        <simplesect>
        	<title>Enhancements</title>
        	<para>Made shape file loader tolerant of truncated multibyte values found in some free worldwide shapefiles (Sandro Santilli)</para>
        	<para>Lots of bug fixes and enhancements to shp2pgsql
        	       Beefing up regression tests for loaders 
        	       Reproject support for both geometry and geography during import
        	       (Jeff Adams / Azavea, Mark Cave-Ayland)</para>
        	<para>pgsql2shp conversion from predefined list 
        	       (Loic Dachary / Mark Cave-Ayland)</para>
        	<para>Shp-pgsql GUI loader - support loading multiple files at a time.  (Mark Leslie)</para>  
        	<para>Extras - upgraded tiger_geocoder from using old TIGER format to use new TIGER shp and file structure format (Stephen Frost)</para>
        	<para>Extras - revised tiger_geocoder to work with TIGER census 2010 data, addition of reverse geocoder function, various bug fixes, accuracy enhancements, 
        	     limit max result return, speed improvements, loading routines. 
        	   (Regina Obe, Leo Hsu / Paragon Corporation / funding provided by Hunter Systems Group)</para>
        	<para>Overall Documentation proofreading and corrections. (Kasif Rasul)</para>
        	<para>Cleanup PostGIS JDBC classes, revise to use Maven build. (Maria Arias de Reyna, Sandro Santilli)</para>
        </simplesect>
        <simplesect>
        	<title>Bug Fixes</title>
        	<para>#1335 ST_AddPoint returns incorrect result on Linux (Even Rouault)</para>
        </simplesect>
        <simplesect>
        	<title>Release specific credits</title>
        <para>We thank <ulink url="http://blog.opengeo.org/2012/02/01/it-goes-up-to-2-0/">U.S Department of State Human Information Unit (HIU)</ulink> and <ulink url="http://blog.cartodb.com/post/17318840209/postgis-core-committer-sandro-santilli-joins-cartodb">Vizzuality</ulink> for general monetary support to get PostGIS 2.0 out the door.</para>
		<!-- TODO: expand this list -->
	</simplesect>
   </sect1>
   <sect1>
		<title>Release 1.5.4</title>
		<para>Release date: 2012/05/07</para>
		<para>This is a bug fix release, addressing issues that have been filed since the 1.5.3 release.</para>
		<simplesect>
			 <title>Bug Fixes</title>
			 <para>#547, ST_Contains memory problems (Sandro Santilli)</para>
			 <para>#621, Problem finding intersections with geography (Paul Ramsey)</para>
			 <para>#627, PostGIS/PostgreSQL process die on invalid geometry (Paul Ramsey)</para>
			 <para>#810, Increase accuracy of area calculation (Paul Ramsey)</para>
			 <para>#852, improve spatial predicates robustness (Sandro Santilli, Nicklas Avén)</para>
			 <para>#877, ST_Estimated_Extent returns NULL on empty tables (Sandro Santilli)</para>
			 <para>#1028, ST_AsSVG kills whole postgres server when fails (Paul Ramsey)</para>
			 <para>#1056, Fix boxes of arcs and circle stroking code (Paul Ramsey)</para>
			 <para>#1121, populate_geometry_columns using deprecated functions (Regin Obe, Paul Ramsey)</para>
			 <para>#1135, improve testsuite predictability (Andreas 'ads' Scherbaum)</para>
			 <para>#1146, images generator crashes (bronaugh)</para>
			 <para>#1170, North Pole intersection fails (Paul Ramsey)</para>
			 <para>#1179, ST_AsText crash with bad value (kjurka)</para>
			 <para>#1184, honour DESTDIR in documentation Makefile (Bryce L Nordgren)</para>
			 <para>#1227, server crash on invalid GML </para>
			 <para>#1252, SRID appearing in WKT (Paul Ramsey)</para>
			 <para>#1264, st_dwithin(g, g, 0) doesn't work (Paul Ramsey)</para>
			 <para>#1344, allow exporting tables with invalid geometries (Sandro Santilli)</para>
			 <para>#1389, wrong proj4text for SRID 31300 and 31370 (Paul Ramsey)</para>
			 <para>#1406, shp2pgsql crashes when loading into geography (Sandro Santilli)</para>
			 <para>#1595, fixed SRID redundancy in ST_Line_SubString (Sandro Santilli)</para>
			 <para>#1596, check SRID in UpdateGeometrySRID (Mike Toews, Sandro Santilli)</para>
			 <para>#1602, fix ST_Polygonize to retain Z (Sandro Santilli)</para>
			 <para>#1697, fix crash with EMPTY entries in GiST index (Paul Ramsey)</para>
			 <para>#1772, fix ST_Line_Locate_Point with collapsed input (Sandro Santilli)</para>
			 <para>#1799, Protect ST_Segmentize from max_length=0  (Sandro Santilli)</para>
			 <para>Alter parameter order in 900913 (Paul Ramsey)</para>
			 <para>Support builds with "gmake" (Greg Troxel)</para>
		</simplesect>
	</sect1>
      
      <sect1>
        <title>Release 1.5.3</title>
        <para>Release date: 2011/06/25</para>
        <para>This is a bug fix release, addressing issues that have been filed since the 1.5.2 release. If you are running PostGIS 1.3+, a soft upgrade is sufficient
        	otherwise a hard upgrade is recommended.</para>
        <simplesect>
          <title>Bug Fixes</title>
                <para>#1056, produce correct bboxes for arc geometries, fixes index errors
                    (Paul Ramsey)</para>
			   <para>#1007, ST_IsValid crash fix requires GEOS 3.3.0+ or 3.2.3+ 
				 (Sandro Santilli, reported by Birgit Laggner)</para>
			   <para>#940, support for PostgreSQL 9.1 beta 1 
				 (Regina Obe, Paul Ramsey, patch submitted by stl)</para>
			   <para>#845, ST_Intersects precision error (Sandro Santilli, Nicklas Avén)
				 Reported by cdestigter</para>
			   <para>#884, Unstable results with ST_Within, ST_Intersects (Chris Hodgson)</para>
			   <para>#779, shp2pgsql -S option seems to fail on points (Jeff Adams)</para>
			   <para>#666, ST_DumpPoints is not null safe (Regina Obe)</para>
			   <para>#631, Update NZ projections for grid transformation support (jpalmer)</para>
			   <para>#630, Peculiar Null treatment in arrays in ST_Collect (Chris Hodgson)
				 Reported by David Bitner</para>
			   <para>#624, Memory leak in ST_GeogFromText (ryang, Paul Ramsey)</para>
			   <para>#609, Bad source code in manual section 5.2 Java Clients (simoc, Regina Obe)</para>
			   <para>#604, shp2pgsql usage touchups (Mike Toews, Paul Ramsey)</para>
			   <para>#573 ST_Union fails on a group of linestrings 
				 Not a PostGIS bug, fixed in GEOS 3.3.0</para>
			   <para>#457 ST_CollectionExtract returns non-requested type
				(Nicklas Avén, Paul Ramsey)</para>
			  <para>#441 ST_AsGeoJson Bbox on GeometryCollection error (Olivier Courtin)</para>
			  <para>#411 Ability to backup invalid geometries (Sando Santilli)
				 Reported by Regione Toscana</para>
			  <para>#409 ST_AsSVG - degraded (Olivier Courtin)
				 Reported by Sdikiy</para>
			  <para>#373 Documentation syntax error in hard upgrade (Paul Ramsey)
				 Reported by psvensso</para>
        </simplesect>
      </sect1>
      
      <sect1>
        <title>Release 1.5.2</title>
        <para>Release date: 2010/09/27</para>
        <para>This is a bug fix release, addressing issues that have been filed since the 1.5.1 release. If you are running PostGIS 1.3+, a soft upgrade is sufficient
        	otherwise a hard upgrade is recommended.</para>
        <simplesect>
          <title>Bug Fixes</title>
           <para>Loader: fix handling of empty (0-verticed) geometries in shapefiles. (Sandro Santilli)</para>
           <para>#536, Geography ST_Intersects, ST_Covers, ST_CoveredBy and Geometry ST_Equals not using spatial index (Regina Obe, Nicklas Aven)</para>
           <para>#573, Improvement to ST_Contains geography (Paul Ramsey)</para>
           <para>Loader: Add support for command-q shutdown in Mac GTK build (Paul Ramsey)</para>
           <para>#393, Loader: Add temporary patch for large DBF files (Maxime Guillaud, Paul Ramsey)</para>  
           <para>#507, Fix wrong OGC URN in GeoJSON and GML output (Olivier Courtin)</para>
           <para>spatial_ref_sys.sql Add datum conversion for projection SRID 3021 (Paul Ramsey)</para>
           <para>Geography - remove crash for case when all geographies are out of the estimate (Paul Ramsey)</para>
           <para>#469, Fix for array_aggregation error (Greg Stark, Paul Ramsey)</para>
           <para>#532, Temporary geography tables showing up in other user sessions (Paul Ramsey)</para>
           <para>#562, ST_Dwithin errors for large geographies (Paul Ramsey)</para>
           <para>#513, shape loading GUI tries to make spatial index when loading DBF only mode (Paul Ramsey)</para>
           <para>#527, shape loading GUI should always append log messages (Mark Cave-Ayland)</para>
           <para>#504, shp2pgsql should rename xmin/xmax fields (Sandro Santilli)</para>
           <para>#458, postgis_comments being installed in contrib instead of version folder (Mark Cave-Ayland)</para>
           <para>#474, Analyzing a table with geography column crashes server (Paul Ramsey)</para>
           <para>#581, LWGEOM-expand produces inconsistent results (Mark Cave-Ayland)</para>
           <para>#513, Add dbf filter to shp2pgsql-gui and allow uploading dbf only (Paul Ramsey)</para>
           <para>Fix further build issues against PostgreSQL 9.0 (Mark Cave-Ayland)</para>
           <para>#572, Password whitespace for Shape File (Mark Cave-Ayland)</para> 
           <para>#603, shp2pgsql: "-w" produces invalid WKT for MULTI* objects. (Mark Cave-Ayland)</para>
        </simplesect>
      </sect1>
          
      <sect1>
        <title>Release 1.5.1</title>
        <para>Release date: 2010/03/11</para>
        <para>This is a bug fix release, addressing issues that have been filed since the 1.4.1 release. If you are running PostGIS 1.3+, a soft upgrade is sufficient
        	otherwise a hard upgrade is recommended.</para>
        <simplesect>
          <title>Bug Fixes</title>
           <para>#410, update embedded bbox when applying ST_SetPoint, ST_AddPoint ST_RemovePoint to a linestring (Paul Ramsey)</para>
           <para>#411, allow dumping tables with invalid geometries (Sandro Santilli, for Regione Toscana-SIGTA)</para>
           <para>#414, include geography_columns view when running upgrade scripts (Paul Ramsey)</para>
           <para>#419, allow support for multilinestring in ST_Line_Substring (Paul Ramsey, for Lidwala Consulting Engineers)</para>
           <para>#421, fix computed string length in ST_AsGML() (Olivier Courtin)</para>
           <para>#441, fix GML generation with heterogeneous collections (Olivier Courtin)</para>
           <para>#443, incorrect coordinate reversal in GML 3 generation (Olivier Courtin)</para>
           <para>#450, #451, wrong area calculation for geography features that  cross the date line (Paul Ramsey)</para>
           <para>Ensure support for upcoming 9.0 PgSQL release (Paul Ramsey)</para>
        </simplesect>
      </sect1>
      
      <sect1>
        <title>Release 1.5.0</title>
        <para>Release date: 2010/02/04</para>
        <para>This release provides support for geographic coordinates (lat/lon) via a new GEOGRAPHY type. Also performance enhancements, new input format support (GML,KML) and general upkeep.</para>
  
        <simplesect>
          <title>API Stability</title>
          <para>The public API of PostGIS will not change during minor (0.0.X) releases.</para>
          <para>The definition of the =~ operator has changed from an exact geometric equality check to a bounding box equality check.</para>
        </simplesect>

        <simplesect>
          <title>Compatibility</title>
          <para>GEOS, Proj4, and LibXML2 are now mandatory dependencies</para>
          <para>The library versions below are the minimum requirements for PostGIS 1.5</para>
          <para>PostgreSQL 8.3 and higher on all platforms</para>
          <para>GEOS 3.1 and higher only (GEOS 3.2+ to take advantage of all features)</para>
          <para>LibXML2 2.5+ related to new ST_GeomFromGML/KML functionality</para>
          <para>Proj4 4.5 and higher only</para>
        </simplesect>

        <simplesect>
          <title>New Features</title>
          <para><xref linkend="NewFunctions_1_5"/></para>
          <para>Added Hausdorff distance calculations (#209) (Vincent Picavet)</para>
          <para>Added parameters argument to ST_Buffer operation to support one-sided buffering and other buffering styles (Sandro Santilli)</para>
          <para>Addition of other Distance related visualization and analysis functions (Nicklas Aven)</para>
      	  <itemizedlist>
        		<listitem><para>ST_ClosestPoint</para></listitem>
        		<listitem><para>ST_DFullyWithin</para></listitem>
        		<listitem><para>ST_LongestLine</para></listitem>
        		<listitem><para>ST_MaxDistance</para></listitem>
        		<listitem><para>ST_ShortestLine</para></listitem>
      	  </itemizedlist>  
          <para>ST_DumpPoints (Maxime van Noppen)</para>     	  
          <para>KML, GML input via ST_GeomFromGML and ST_GeomFromKML (Olivier Courtin)</para>
          <para>Extract homogeneous collection with ST_CollectionExtract (Paul Ramsey)</para>
          <para>Add measure values to an existing linestring with ST_AddMeasure (Paul Ramsey)</para>
          <para>History table implementation in utils (George Silva)</para>
          <para>Geography type and supporting functions</para>
          <itemizedlist>
            <listitem><para>Spherical algorithms (Dave Skea)</para></listitem>
            <listitem><para>Object/index implementation (Paul Ramsey)</para></listitem>
            <listitem><para>Selectivity implementation (Mark Cave-Ayland)</para></listitem>
            <listitem><para>Serializations to KML, GML and JSON (Olivier Courtin)</para></listitem>
            <listitem><para>ST_Area, ST_Distance, ST_DWithin, ST_GeogFromText, ST_GeogFromWKB, ST_Intersects, ST_Covers, ST_Buffer (Paul Ramsey)</para></listitem>
          </itemizedlist>
        </simplesect>

        <simplesect>
          <title>Enhancements</title>
          <para>Performance improvements to ST_Distance (Nicklas Aven)</para>
          <para>Documentation updates and improvements (Regina Obe, Kevin Neufeld)</para>
          <para>Testing and quality control (Regina Obe)</para>
          <para>PostGIS 1.5 support PostgreSQL 8.5 trunk (Guillaume Lelarge)</para>
          <para>Win32 support and improvement of core shp2pgsql-gui (Mark Cave-Ayland)</para>
          <para>In place 'make check' support (Paul Ramsey)</para>
        </simplesect>
        
        <simplesect>
          <title>Bug fixes</title>
          <para><ulink url="http://trac.osgeo.org/postgis/query?status=closed&amp;milestone=PostGIS+1.5.0&amp;order=priority">http://trac.osgeo.org/postgis/query?status=closed&amp;milestone=PostGIS+1.5.0&amp;order=priority</ulink></para>
        </simplesect>
      </sect1>
      
      <sect1>
        <title>Release 1.4.0</title>
        <para>Release date: 2009/07/24</para>
        <para>This release provides performance enhancements, improved internal structures and testing, new features, and upgraded documentation.
        If you are running PostGIS 1.1+, a soft upgrade is sufficient
        	otherwise a hard upgrade is recommended.</para>
  
        <simplesect>
          <title>API Stability</title>
          <para>As of the 1.4 release series, the public API of PostGIS will not change during minor releases.</para>
        </simplesect>

        <simplesect>
          <title>Compatibility</title>
          <para>The versions below are the *minimum* requirements for PostGIS 1.4</para>
          <para>PostgreSQL 8.2 and higher on all platforms</para>
          <para>GEOS 3.0 and higher only</para>
          <para>PROJ4 4.5 and higher only</para>
        </simplesect>

        <simplesect>
          <title>New Features</title>
          <para>ST_Union() uses high-speed cascaded union when compiled against
         GEOS 3.1+ (Paul Ramsey)</para>
          <para>ST_ContainsProperly() requires GEOS 3.1+</para>
          <para>ST_Intersects(), ST_Contains(), ST_Within() use high-speed cached prepared geometry against GEOS 3.1+ (Paul Ramsey / funded by Zonar Systems)</para>
          <para>Vastly improved documentation and reference manual (Regina Obe &amp; Kevin Neufeld)</para>
          <para>Figures and diagram examples in the reference manual (Kevin Neufeld)</para>
          <para>ST_IsValidReason() returns readable explanations for validity failures (Paul Ramsey)</para>
          <para>ST_GeoHash() returns a geohash.org signature for geometries (Paul Ramsey)</para>
          <para>GTK+ multi-platform GUI for shape file loading (Paul Ramsey)</para>
          <para>ST_LineCrossingDirection() returns crossing directions (Paul Ramsey)</para>
          <para>ST_LocateBetweenElevations() returns sub-string based on Z-ordinate. (Paul Ramsey)</para>
          <para>Geometry parser returns explicit error message about location of syntax errors (Mark Cave-Ayland)</para>
          <para>ST_AsGeoJSON() return JSON formatted geometry (Olivier Courtin)</para>
          <para>Populate_Geometry_Columns() -- automatically add records to geometry_columns for TABLES and VIEWS (Kevin Neufeld)</para>
          <para>ST_MinimumBoundingCircle() -- returns the smallest circle polygon that can encompass a geometry (Bruce Rindahl)</para>
        </simplesect>

        <simplesect>
          <title>Enhancements</title>
          <para>Core geometry system moved into independent library, liblwgeom. (Mark Cave-Ayland)</para>
          <para>New build system uses PostgreSQL "pgxs" build bootstrapper. (Mark Cave-Ayland)</para>
          <para>Debugging framework formalized and simplified. (Mark Cave-Ayland)</para>
          <para>All build-time #defines generated at configure time and placed in headers for easier cross-platform support (Mark Cave-Ayland)</para>
          <para>Logging framework formalized and simplified (Mark Cave-Ayland)</para>
          <para>Expanded and more stable support for CIRCULARSTRING, COMPOUNDCURVE and CURVEPOLYGON, better parsing, wider support in functions (Mark Leslie &amp; Mark Cave-Ayland)</para>
          <para>Improved support for OpenSolaris builds (Paul Ramsey)</para>
          <para>Improved support for MSVC builds (Mateusz Loskot)</para>
          <para>Updated KML support (Olivier Courtin)</para>
          <para>Unit testing framework for liblwgeom (Paul Ramsey)</para>
          <para>New testing framework to comprehensively exercise every PostGIS function (Regine Obe)</para>
          <para>Performance improvements to all geometry aggregate functions (Paul Ramsey)</para>
          <para>Support for the upcoming PostgreSQL 8.4 (Mark Cave-Ayland, Talha Bin Rizwan)</para>
          <para>Shp2pgsql and pgsql2shp re-worked to depend on the common parsing/unparsing code in liblwgeom (Mark Cave-Ayland)</para>
          <para>Use of PDF DbLatex to build PDF docs and preliminary instructions for build (Jean David Techer)</para>
          <para>Automated User documentation build (PDF and HTML) and Developer Doxygen Documentation (Kevin Neufeld)</para>
          <para>Automated build of document images using ImageMagick from WKT geometry text files (Kevin Neufeld)</para>
          <para>More attractive CSS for HTML documentation (Dane Springmeyer)</para>
        </simplesect>
        <simplesect>
          <title>Bug fixes</title>
          <para><ulink url="http://trac.osgeo.org/postgis/query?status=closed&amp;milestone=PostGIS+1.4.0&amp;order=priority">http://trac.osgeo.org/postgis/query?status=closed&amp;milestone=PostGIS+1.4.0&amp;order=priority</ulink></para>
        </simplesect>
      </sect1>

	  <sect1>
        <title>Release 1.3.6</title>
        <para>Release date: 2009/05/04</para>
        <para>If you are running PostGIS 1.1+, a soft upgrade is sufficient
        	otherwise a hard upgrade is recommended. This release adds support for PostgreSQL 8.4, exporting
        prj files from the database with shape data, some crash fixes for shp2pgsql, and several small
        bug fixes in the handling of "curve" types, logical error importing dbf only files, improved error handling of AddGeometryColumns.</para>
      </sect1>
	  
      <sect1>
        <title>Release 1.3.5</title>
        <para>Release date: 2008/12/15</para>
        <para>If you are running PostGIS 1.1+, a soft upgrade is sufficient
        	otherwise a hard upgrade is recommended. This release is a bug fix release to address a failure
        in ST_Force_Collection and related functions that critically
        affects using MapServer with LINE layers.</para>
      </sect1>

     <sect1>
      <title>Release 1.3.4</title>
      <para>Release date: 2008/11/24</para>
      <para>This release adds support for GeoJSON output, building
      with PostgreSQL 8.4, improves documentation quality and 
      output aesthetics, adds function-level SQL documentation,
      and improves performance for some spatial predicates
      (point-in-polygon tests).</para>
      <para>Bug fixes include removal of crashers in handling
      circular strings for many functions, some memory leaks
      removed, a linear referencing failure for measures on vertices,
      and more. See the NEWS file for details.</para>
    </sect1>
    
    <sect1>
      <title>Release 1.3.3</title>

      <para>Release date: 2008/04/12</para>

      <para>This release fixes bugs shp2pgsql, adds enhancements to SVG and
      KML support, adds a ST_SimplifyPreserveTopology function, makes the
      build more sensitive to GEOS versions, and fixes a handful of severe but
      rare failure cases.</para>
    </sect1>

    <sect1>
      <title>Release 1.3.2</title>

      <para>Release date: 2007/12/01</para>

      <para>This release fixes bugs in ST_EndPoint() and ST_Envelope, improves
      support for JDBC building and OS/X, and adds better support for GML
      output with ST_AsGML(), including GML3 output.</para>
    </sect1>

    <sect1>
      <title>Release 1.3.1</title>

      <para>Release date: 2007/08/13</para>

      <para>This release fixes some oversights in the previous release around
      version numbering, documentation, and tagging.</para>
    </sect1>

    <sect1>
      <title>Release 1.3.0</title>

      <para>Release date: 2007/08/09</para>

      <para>This release provides performance enhancements to the relational
      functions, adds new relational functions and begins the migration of our
      function names to the SQL-MM convention, using the spatial type (SP)
      prefix.</para>

      <simplesect>
        <title>Added Functionality</title>

        <para>JDBC: Added Hibernate Dialect (thanks to Norman Barker)</para>

        <para>Added ST_Covers and ST_CoveredBy relational functions.
        Description and justification of these functions can be found at
        <ulink url="http://lin-ear-th-inking.blogspot.com/2007/06/subtleties-of-ogc-covers-spatial.html">http://lin-ear-th-inking.blogspot.com/2007/06/subtleties-of-ogc-covers-spatial.html</ulink></para>

        <para>Added ST_DWithin relational function.</para>
      </simplesect>

      <simplesect>
        <title>Performance Enhancements</title>

        <para>Added cached and indexed point-in-polygon short-circuits for the
        functions ST_Contains, ST_Intersects, ST_Within and ST_Disjoint</para>

        <para>Added inline index support for relational functions (except
        ST_Disjoint)</para>
      </simplesect>

      <simplesect>
        <title>Other Changes</title>

        <para>Extended curved geometry support into the geometry accessor and
        some processing functions</para>

        <para>Began migration of functions to the SQL-MM naming convention;
        using a spatial type (ST) prefix.</para>

        <para>Added initial support for PostgreSQL 8.3</para>
      </simplesect>
    </sect1>

    <sect1>
      <title>Release 1.2.1</title>

      <para>Release date: 2007/01/11</para>

      <para>This release provides bug fixes in PostgreSQL 8.2 support and some
      small performance enhancements.</para>

      <simplesect>
        <title>Changes</title>

        <para>Fixed point-in-polygon shortcut bug in Within().</para>

        <para>Fixed PostgreSQL 8.2 NULL handling for indexes.</para>

        <para>Updated RPM spec files.</para>

        <para>Added short-circuit for Transform() in no-op case.</para>

        <para>JDBC: Fixed JTS handling for multi-dimensional geometries
        (thanks to Thomas Marti for hint and partial patch). Additionally, now
        JavaDoc is compiled and packaged. Fixed classpath problems with GCJ.
        Fixed pgjdbc 8.2 compatibility, losing support for jdk 1.3 and
        older.</para>
      </simplesect>
    </sect1>

    <sect1>
      <title>Release 1.2.0</title>

      <para>Release date: 2006/12/08</para>

      <para>This release provides type definitions along with
      serialization/deserialization capabilities for SQL-MM defined curved
      geometries, as well as performance enhancements.</para>

      <simplesect>
        <title>Changes</title>

        <para>Added curved geometry type support for
        serialization/deserialization</para>

        <para>Added point-in-polygon shortcircuit to the Contains and Within
        functions to improve performance for these cases.</para>
      </simplesect>
    </sect1>

    <sect1>
      <title>Release 1.1.6</title>

      <para>Release date: 2006/11/02</para>

      <para>This is a bugfix release, in particular fixing a critical error
      with GEOS interface in 64bit systems. Includes an updated of the SRS
      parameters and an improvement in reprojections (take Z in
      consideration). Upgrade is <emphasis>encouraged</emphasis>.</para>

      <simplesect>
        <title>Upgrading</title>

        <para>If you are upgrading from release 1.0.3 or later follow the
        <link linkend="soft_upgrade">soft upgrade</link> procedure.</para>

        <para>If you are upgrading from a release <emphasis>between 1.0.0RC6
        and 1.0.2</emphasis> (inclusive) and really want a live upgrade read
        the <link linkend="rel_1.0.3_upgrading">upgrade section</link> of the
        1.0.3 release notes chapter.</para>

        <para>Upgrade from any release prior to 1.0.0RC6 requires an <link
        linkend="hard_upgrade">hard upgrade</link>.</para>
      </simplesect>

      <simplesect>
        <title>Bug fixes</title>

        <para>fixed CAPI change that broke 64-bit platforms</para>

        <para>loader/dumper: fixed regression tests and usage output</para>

        <para>Fixed setSRID() bug in JDBC, thanks to Thomas Marti</para>
      </simplesect>

      <simplesect>
        <title>Other changes</title>

        <para>use Z ordinate in reprojections</para>

        <para>spatial_ref_sys.sql updated to EPSG 6.11.1</para>

        <para>Simplified Version.config infrastructure to use a single pack of
        version variables for everything.</para>

        <para>Include the Version.config in loader/dumper USAGE
        messages</para>

        <para>Replace hand-made, fragile JDBC version parser with
        Properties</para>
      </simplesect>
    </sect1>

    <sect1>
      <title>Release 1.1.5</title>

      <para>Release date: 2006/10/13</para>

      <para>This is an bugfix release, including a critical segfault on win32.
      Upgrade is <emphasis>encouraged</emphasis>.</para>

      <simplesect>
        <title>Upgrading</title>

        <para>If you are upgrading from release 1.0.3 or later follow the
        <link linkend="soft_upgrade">soft upgrade</link> procedure.</para>

        <para>If you are upgrading from a release <emphasis>between 1.0.0RC6
        and 1.0.2</emphasis> (inclusive) and really want a live upgrade read
        the <link linkend="rel_1.0.3_upgrading">upgrade section</link> of the
        1.0.3 release notes chapter.</para>

        <para>Upgrade from any release prior to 1.0.0RC6 requires an <link
        linkend="hard_upgrade">hard upgrade</link>.</para>
      </simplesect>

      <simplesect>
        <title>Bug fixes</title>

        <para>Fixed MingW link error that was causing pgsql2shp to segfault on
        Win32 when compiled for PostgreSQL 8.2</para>

        <para>fixed nullpointer Exception in Geometry.equals() method in
        Java</para>

        <para>Added EJB3Spatial.odt to fulfill the GPL requirement of
        distributing the "preferred form of modification"</para>

        <para>Removed obsolete synchronization from JDBC Jts code.</para>

        <para>Updated heavily outdated README files for shp2pgsql/pgsql2shp by
        merging them with the manpages.</para>

        <para>Fixed version tag in jdbc code that still said "1.1.3" in the
        "1.1.4" release.</para>
      </simplesect>

      <simplesect>
        <title>New Features</title>

        <para>Added -S option for non-multi geometries to shp2pgsql</para>
      </simplesect>
    </sect1>

    <sect1>
      <title>Release 1.1.4</title>

      <para>Release date: 2006/09/27</para>

      <para>This is an bugfix release including some improvements in the Java
      interface. Upgrade is <emphasis>encouraged</emphasis>.</para>

      <simplesect>
        <title>Upgrading</title>

        <para>If you are upgrading from release 1.0.3 or later follow the
        <link linkend="soft_upgrade">soft upgrade</link> procedure.</para>

        <para>If you are upgrading from a release <emphasis>between 1.0.0RC6
        and 1.0.2</emphasis> (inclusive) and really want a live upgrade read
        the <link linkend="rel_1.0.3_upgrading">upgrade section</link> of the
        1.0.3 release notes chapter.</para>

        <para>Upgrade from any release prior to 1.0.0RC6 requires an <link
        linkend="hard_upgrade">hard upgrade</link>.</para>
      </simplesect>

      <simplesect>
        <title>Bug fixes</title>

        <para>Fixed support for PostgreSQL 8.2</para>

        <para>Fixed bug in collect() function discarding SRID of input</para>

        <para>Added SRID match check in MakeBox2d and MakeBox3d</para>

        <para>Fixed regress tests to pass with GEOS-3.0.0</para>

        <para>Improved pgsql2shp run concurrency.</para>
      </simplesect>

      <simplesect>
        <title>Java changes</title>

        <para>reworked JTS support to reflect new upstream JTS developers'
        attitude to SRID handling. Simplifies code and drops build depend on
        GNU trove.</para>

        <para>Added EJB2 support generously donated by the "Geodetix s.r.l.
        Company" <ulink url="http://www.geodetix.it/">http://www.geodetix.it/</ulink></para>

        <para>Added EJB3 tutorial / examples donated by Norman Barker
        &lt;nbarker@ittvis.com&gt;</para>

        <para>Reorganized java directory layout a little.</para>
      </simplesect>
    </sect1>

    <sect1>
      <title>Release 1.1.3</title>

      <para>Release date: 2006/06/30</para>

      <para>This is an bugfix release including also some new functionalities
      (most notably long transaction support) and portability enhancements.
      Upgrade is <emphasis>encouraged</emphasis>.</para>

      <simplesect>
        <title>Upgrading</title>

        <para>If you are upgrading from release 1.0.3 or later follow the
        <link linkend="soft_upgrade">soft upgrade</link> procedure.</para>

        <para>If you are upgrading from a release <emphasis>between 1.0.0RC6
        and 1.0.2</emphasis> (inclusive) and really want a live upgrade read
        the <link linkend="rel_1.0.3_upgrading">upgrade section</link> of the
        1.0.3 release notes chapter.</para>

        <para>Upgrade from any release prior to 1.0.0RC6 requires an <link
        linkend="hard_upgrade">hard upgrade</link>.</para>
      </simplesect>

      <simplesect>
        <title>Bug fixes / correctness</title>

        <para>BUGFIX in distance(poly,poly) giving wrong results.</para>

        <para>BUGFIX in pgsql2shp successful return code.</para>

        <para>BUGFIX in shp2pgsql handling of MultiLine WKT.</para>

        <para>BUGFIX in affine() failing to update bounding box.</para>

        <para>WKT parser: forbidden construction of multigeometries with EMPTY
        elements (still supported for GEOMETRYCOLLECTION).</para>
      </simplesect>

      <simplesect>
        <title>New functionalities</title>

        <para>NEW Long Transactions support.</para>

        <para>NEW DumpRings() function.</para>

        <para>NEW AsHEXEWKB(geom, XDR|NDR) function.</para>
      </simplesect>

      <simplesect>
        <title>JDBC changes</title>

        <para>Improved regression tests: MultiPoint and scientific
        ordinates</para>

        <para>Fixed some minor bugs in jdbc code</para>

        <para>Added proper accessor functions for all fields in preparation of
        making those fields private later</para>
      </simplesect>

      <simplesect>
        <title>Other changes</title>

        <para>NEW regress test support for loader/dumper.</para>

        <para>Added --with-proj-libdir and --with-geos-libdir configure
        switches.</para>

        <para>Support for build Tru64 build.</para>

        <para>Use Jade for generating documentation.</para>

        <para>Don't link pgsql2shp to more libs then required.</para>

        <para>Initial support for PostgreSQL 8.2.</para>
      </simplesect>
    </sect1>

    <sect1>
      <title>Release 1.1.2</title>

      <para>Release date: 2006/03/30</para>

      <para>This is an bugfix release including some new functions and
      portability enhancements. Upgrade is
      <emphasis>encouraged</emphasis>.</para>

      <simplesect>
        <title>Upgrading</title>

        <para>If you are upgrading from release 1.0.3 or later follow the
        <link linkend="soft_upgrade">soft upgrade</link> procedure.</para>

        <para>If you are upgrading from a release <emphasis>between 1.0.0RC6
        and 1.0.2</emphasis> (inclusive) and really want a live upgrade read
        the <link linkend="rel_1.0.3_upgrading">upgrade section</link> of the
        1.0.3 release notes chapter.</para>

        <para>Upgrade from any release prior to 1.0.0RC6 requires an <link
        linkend="hard_upgrade">hard upgrade</link>.</para>
      </simplesect>

      <simplesect>
        <title>Bug fixes</title>

        <para>BUGFIX in SnapToGrid() computation of output bounding box</para>

        <para>BUGFIX in EnforceRHR()</para>

        <para>jdbc2 SRID handling fixes in JTS code</para>

        <para>Fixed support for 64bit archs</para>
      </simplesect>

      <simplesect>
        <title>New functionalities</title>

        <para>Regress tests can now be run *before* postgis
        installation</para>

        <para>New affine() matrix transformation functions</para>

        <para>New rotate{,X,Y,Z}() function</para>

        <para>Old translating and scaling functions now use affine()
        internally</para>

        <para>Embedded access control in estimated_extent() for builds against
        pgsql &gt;= 8.0.0</para>
      </simplesect>

      <simplesect>
        <title>Other changes</title>

        <para>More portable ./configure script</para>

        <para>Changed ./run_test script to have more sane default
        behaviour</para>
      </simplesect>
    </sect1>

    <sect1>
      <title>Release 1.1.1</title>

      <para>Release date: 2006/01/23</para>

      <para>This is an important Bugfix release, upgrade is <emphasis>highly
      recommended</emphasis>. Previous version contained a bug in
      postgis_restore.pl preventing <link linkend="hard_upgrade">hard
      upgrade</link> procedure to complete and a bug in GEOS-2.2+ connector
      preventing GeometryCollection objects to be used in topological
      operations.</para>

      <simplesect>
        <title>Upgrading</title>

        <para>If you are upgrading from release 1.0.3 or later follow the
        <link linkend="soft_upgrade">soft upgrade</link> procedure.</para>

        <para>If you are upgrading from a release <emphasis>between 1.0.0RC6
        and 1.0.2</emphasis> (inclusive) and really want a live upgrade read
        the <link linkend="rel_1.0.3_upgrading">upgrade section</link> of the
        1.0.3 release notes chapter.</para>

        <para>Upgrade from any release prior to 1.0.0RC6 requires an <link
        linkend="hard_upgrade">hard upgrade</link>.</para>
      </simplesect>

      <simplesect>
        <title>Bug fixes</title>

        <para>Fixed a premature exit in postgis_restore.pl</para>

        <para>BUGFIX in geometrycollection handling of GEOS-CAPI
        connector</para>

        <para>Solaris 2.7 and MingW support improvements</para>

        <para>BUGFIX in line_locate_point()</para>

        <para>Fixed handling of postgresql paths</para>

        <para>BUGFIX in line_substring()</para>

        <para>Added support for localized cluster in regress tester</para>
      </simplesect>

      <simplesect>
        <title>New functionalities</title>

        <para>New Z and M interpolation in line_substring()</para>

        <para>New Z and M interpolation in line_interpolate_point()</para>

        <para>added NumInteriorRing() alias due to OpenGIS ambiguity</para>
      </simplesect>
    </sect1>

    <sect1>
      <title>Release 1.1.0</title>

      <para>Release date: 2005/12/21</para>

      <para>This is a Minor release, containing many improvements and new
      things. Most notably: build procedure greatly simplified; transform()
      performance drastically improved; more stable GEOS connectivity (CAPI
      support); lots of new functions; draft topology support.</para>

      <para>It is <emphasis>highly recommended</emphasis> that you upgrade to
      GEOS-2.2.x before installing PostGIS, this will ensure future GEOS
      upgrades won't require a rebuild of the PostGIS library.</para>

      <simplesect>
        <title>Credits</title>

        <para>This release includes code from Mark Cave Ayland for caching of
        proj4 objects. Markus Schaber added many improvements in his JDBC2
        code. Alex Bodnaru helped with PostgreSQL source dependency relief and
        provided Debian specfiles. Michael Fuhr tested new things on Solaris
        arch. David Techer and Gerald Fenoy helped testing GEOS C-API
        connector. Hartmut Tschauner provided code for the azimuth() function.
        Devrim GUNDUZ provided RPM specfiles. Carl Anderson helped with the
        new area building functions. See the <link
        linkend="credits_other_contributors">credits</link> section for more names.</para>
      </simplesect>

      <simplesect>
        <title>Upgrading</title>

        <para>If you are upgrading from release 1.0.3 or later you
        <emphasis>DO NOT</emphasis> need a dump/reload. Simply sourcing the
        new lwpostgis_upgrade.sql script in all your existing databases will
        work. See the <link linkend="soft_upgrade">soft upgrade</link> chapter
        for more information.</para>

        <para>If you are upgrading from a release <emphasis>between 1.0.0RC6
        and 1.0.2</emphasis> (inclusive) and really want a live upgrade read
        the <link linkend="rel_1.0.3_upgrading">upgrade section</link> of the
        1.0.3 release notes chapter.</para>

        <para>Upgrade from any release prior to 1.0.0RC6 requires an <link
        linkend="hard_upgrade">hard upgrade</link>.</para>
      </simplesect>

      <simplesect>
        <title>New functions</title>

        <para>scale() and transscale() companion methods to translate()</para>

        <para>line_substring()</para>

        <para>line_locate_point()</para>

        <para>M(point)</para>

        <para>LineMerge(geometry)</para>

        <para>shift_longitude(geometry)</para>

        <para>azimuth(geometry)</para>

        <para>locate_along_measure(geometry, float8)</para>

        <para>locate_between_measures(geometry, float8, float8)</para>

        <para>SnapToGrid by point offset (up to 4d support)</para>

        <para>BuildArea(any_geometry)</para>

        <para>OGC BdPolyFromText(linestring_wkt, srid)</para>

        <para>OGC BdMPolyFromText(linestring_wkt, srid)</para>

        <para>RemovePoint(linestring, offset)</para>

        <para>ReplacePoint(linestring, offset, point)</para>
      </simplesect>

      <simplesect>
        <title>Bug fixes</title>

        <para>Fixed memory leak in polygonize()</para>

        <para>Fixed bug in lwgeom_as_anytype cast functions</para>

        <para>Fixed USE_GEOS, USE_PROJ and USE_STATS elements of
        postgis_version() output to always reflect library state.</para>
      </simplesect>

      <simplesect>
        <title>Function semantic changes</title>

        <para>SnapToGrid doesn't discard higher dimensions</para>

        <para>Changed Z() function to return NULL if requested dimension is
        not available</para>
      </simplesect>

      <simplesect>
        <title>Performance improvements</title>

        <para>Much faster transform() function, caching proj4 objects</para>

        <para>Removed automatic call to fix_geometry_columns() in
        AddGeometryColumns() and update_geometry_stats()</para>
      </simplesect>

      <simplesect>
        <title>JDBC2 works</title>

        <para>Makefile improvements</para>

        <para>JTS support improvements</para>

        <para>Improved regression test system</para>

        <para>Basic consistency check method for geometry collections</para>

        <para>Support for (Hex)(E)wkb</para>

        <para>Autoprobing DriverWrapper for HexWKB / EWKT switching</para>

        <para>fix compile problems in ValueSetter for ancient jdk
        releases.</para>

        <para>fix EWKT constructors to accept SRID=4711; representation</para>

        <para>added preliminary read-only support for java2d geometries</para>
      </simplesect>

      <simplesect>
        <title>Other new things</title>

        <para>Full autoconf-based configuration, with PostgreSQL source
        dependency relief</para>

        <para>GEOS C-API support (2.2.0 and higher)</para>

        <para>Initial support for topology modelling</para>

        <para>Debian and RPM specfiles</para>

        <para>New lwpostgis_upgrade.sql script</para>
      </simplesect>

      <simplesect>
        <title>Other changes</title>

        <para>JTS support improvements</para>

        <para>Stricter mapping between DBF and SQL integer and string
        attributes</para>

        <para>Wider and cleaner regression test suite</para>

        <para>old jdbc code removed from release</para>

        <para>obsoleted direct use of postgis_proc_upgrade.pl</para>

        <para>scripts version unified with release version</para>
      </simplesect>
    </sect1>

    <sect1>
      <title>Release 1.0.6</title>

      <para>Release date: 2005/12/06</para>

      <para>Contains a few bug fixes and improvements.</para>

      <simplesect>
        <title>Upgrading</title>

        <para>If you are upgrading from release 1.0.3 or later you
        <emphasis>DO NOT</emphasis> need a dump/reload.</para>

        <para>If you are upgrading from a release <emphasis>between 1.0.0RC6
        and 1.0.2</emphasis> (inclusive) and really want a live upgrade read
        the <link linkend="rel_1.0.3_upgrading">upgrade section</link> of the
        1.0.3 release notes chapter.</para>

        <para>Upgrade from any release prior to 1.0.0RC6 requires an <link
        linkend="hard_upgrade">hard upgrade</link>.</para>
      </simplesect>

      <simplesect>
        <title>Bug fixes</title>

        <para>Fixed palloc(0) call in collection deserializer (only gives
        problem with --enable-cassert)</para>

        <para>Fixed bbox cache handling bugs</para>

        <para>Fixed geom_accum(NULL, NULL) segfault</para>

        <para>Fixed segfault in addPoint()</para>

        <para>Fixed short-allocation in lwcollection_clone()</para>

        <para>Fixed bug in segmentize()</para>

        <para>Fixed bbox computation of SnapToGrid output</para>
      </simplesect>

      <simplesect>
        <title>Improvements</title>

        <para>Initial support for postgresql 8.2</para>

        <para>Added missing SRID mismatch checks in GEOS ops</para>
      </simplesect>
    </sect1>

    <sect1>
      <title>Release 1.0.5</title>

      <para>Release date: 2005/11/25</para>

      <para>Contains memory-alignment fixes in the library, a segfault fix in
      loader's handling of UTF8 attributes and a few improvements and
      cleanups.</para>

      <note>
        <para>Return code of shp2pgsql changed from previous releases to
        conform to unix standards (return 0 on success).</para>
      </note>

      <simplesect>
        <title>Upgrading</title>

        <para>If you are upgrading from release 1.0.3 or later you
        <emphasis>DO NOT</emphasis> need a dump/reload.</para>

        <para>If you are upgrading from a release <emphasis>between 1.0.0RC6
        and 1.0.2</emphasis> (inclusive) and really want a live upgrade read
        the <link linkend="rel_1.0.3_upgrading">upgrade section</link> of the
        1.0.3 release notes chapter.</para>

        <para>Upgrade from any release prior to 1.0.0RC6 requires an <link
        linkend="hard_upgrade">hard upgrade</link>.</para>
      </simplesect>

      <simplesect>
        <title>Library changes</title>

        <para>Fixed memory alignment problems</para>

        <para>Fixed computation of null values fraction in analyzer</para>

        <para>Fixed a small bug in the getPoint4d_p() low-level
        function</para>

        <para>Speedup of serializer functions</para>

        <para>Fixed a bug in force_3dm(), force_3dz() and force_4d()</para>
      </simplesect>

      <simplesect>
        <title>Loader changes</title>

        <para>Fixed return code of shp2pgsql</para>

        <para>Fixed back-compatibility issue in loader (load of null
        shapefiles)</para>

        <para>Fixed handling of trailing dots in dbf numerical
        attributes</para>

        <para>Segfault fix in shp2pgsql (utf8 encoding)</para>
      </simplesect>

      <simplesect>
        <title>Other changes</title>

        <para>Schema aware postgis_proc_upgrade.pl, support for pgsql
        7.2+</para>

        <para>New "Reporting Bugs" chapter in manual</para>
      </simplesect>
    </sect1>

    <sect1>
      <title>Release 1.0.4</title>

      <para>Release date: 2005/09/09</para>

      <para>Contains important bug fixes and a few improvements. In
      particular, it fixes a memory leak preventing successful build of GiST
      indexes for large spatial tables.</para>

      <simplesect>
        <title>Upgrading</title>

        <para>If you are upgrading from release 1.0.3 you <emphasis>DO
        NOT</emphasis> need a dump/reload.</para>

        <para>If you are upgrading from a release <emphasis>between 1.0.0RC6
        and 1.0.2</emphasis> (inclusive) and really want a live upgrade read
        the <link linkend="rel_1.0.3_upgrading">upgrade section</link> of the
        1.0.3 release notes chapter.</para>

        <para>Upgrade from any release prior to 1.0.0RC6 requires an <link
        linkend="hard_upgrade">hard upgrade</link>.</para>
      </simplesect>

      <simplesect>
        <title>Bug fixes</title>

        <para>Memory leak plugged in GiST indexing</para>

        <para>Segfault fix in transform() handling of proj4 errors</para>

        <para>Fixed some proj4 texts in spatial_ref_sys (missing +proj)</para>

        <para>Loader: fixed string functions usage, reworked NULL objects
        check, fixed segfault on MULTILINESTRING input.</para>

        <para>Fixed bug in MakeLine dimension handling</para>

        <para>Fixed bug in translate() corrupting output bounding box</para>
      </simplesect>

      <simplesect>
        <title>Improvements</title>

        <para>Documentation improvements</para>

        <para>More robust selectivity estimator</para>

        <para>Minor speedup in distance()</para>

        <para>Minor cleanups</para>

        <para>GiST indexing cleanup</para>

        <para>Looser syntax acceptance in box3d parser</para>
      </simplesect>
    </sect1>

    <sect1 id="rel_1.0.3_upgrading">
      <title>Release 1.0.3</title>

      <para>Release date: 2005/08/08</para>

      <para>Contains some bug fixes - <emphasis>including a severe one
      affecting correctness of stored geometries</emphasis> - and a few
      improvements.</para>

      <simplesect>
        <title>Upgrading</title>

        <para>Due to a bug in a bounding box computation routine, the upgrade
        procedure requires special attention, as bounding boxes cached in the
        database could be incorrect.</para>

        <para>An <link linkend="hard_upgrade">hard upgrade</link> procedure
        (dump/reload) will force recomputation of all bounding boxes (not
        included in dumps). This is <emphasis>required</emphasis> if upgrading
        from releases prior to 1.0.0RC6.</para>

        <para>If you are upgrading from versions 1.0.0RC6 or up, this release
        includes a perl script (utils/rebuild_bbox_caches.pl) to force
        recomputation of geometries' bounding boxes and invoke all operations
        required to propagate eventual changes in them (geometry statistics
        update, reindexing). Invoke the script after a make install (run with
        no args for syntax help). Optionally run utils/postgis_proc_upgrade.pl
        to refresh postgis procedures and functions signatures (see <link
        linkend="soft_upgrade">Soft upgrade</link>).</para>
      </simplesect>

      <simplesect>
        <title>Bug fixes</title>

        <para>Severe bugfix in lwgeom's 2d bounding box computation</para>

        <para>Bugfix in WKT (-w) POINT handling in loader</para>

        <para>Bugfix in dumper on 64bit machines</para>

        <para>Bugfix in dumper handling of user-defined queries</para>

        <para>Bugfix in create_undef.pl script</para>
      </simplesect>

      <simplesect>
        <title>Improvements</title>

        <para>Small performance improvement in canonical input function</para>

        <para>Minor cleanups in loader</para>

        <para>Support for multibyte field names in loader</para>

        <para>Improvement in the postgis_restore.pl script</para>

        <para>New rebuild_bbox_caches.pl util script</para>
      </simplesect>
    </sect1>

    <sect1>
      <title>Release 1.0.2</title>

      <para>Release date: 2005/07/04</para>

      <para>Contains a few bug fixes and improvements.</para>

      <simplesect>
        <title>Upgrading</title>

        <para>If you are upgrading from release 1.0.0RC6 or up you
        <emphasis>DO NOT</emphasis> need a dump/reload.</para>

        <para>Upgrading from older releases requires a dump/reload. See the
        <link linkend="upgrading">upgrading</link> chapter for more
        informations.</para>
      </simplesect>

      <simplesect>
        <title>Bug fixes</title>

        <para>Fault tolerant btree ops</para>

        <para>Memory leak plugged in pg_error</para>

        <para>Rtree index fix</para>

        <para>Cleaner build scripts (avoided mix of CFLAGS and
        CXXFLAGS)</para>
      </simplesect>

      <simplesect>
        <title>Improvements</title>

        <para>New index creation capabilities in loader (-I switch)</para>

        <para>Initial support for postgresql 8.1dev</para>
      </simplesect>
    </sect1>

    <sect1>
      <title>Release 1.0.1</title>

      <para>Release date: 2005/05/24</para>

      <para>Contains a few bug fixes and some improvements.</para>

      <simplesect>
        <title>Upgrading</title>

        <para>If you are upgrading from release 1.0.0RC6 or up you
        <emphasis>DO NOT</emphasis> need a dump/reload.</para>

        <para>Upgrading from older releases requires a dump/reload. See the
        <link linkend="upgrading">upgrading</link> chapter for more
        informations.</para>
      </simplesect>

      <simplesect>
        <title>Library changes</title>

        <para>BUGFIX in 3d computation of length_spheroid()</para>

        <para>BUGFIX in join selectivity estimator</para>
      </simplesect>

      <simplesect>
        <title>Other changes/additions</title>

        <para>BUGFIX in shp2pgsql escape functions</para>

        <para>better support for concurrent postgis in multiple schemas</para>

        <para>documentation fixes</para>

        <para>jdbc2: compile with "-target 1.2 -source 1.2" by default</para>

        <para>NEW -k switch for pgsql2shp</para>

        <para>NEW support for custom createdb options in
        postgis_restore.pl</para>

        <para>BUGFIX in pgsql2shp attribute names unicity enforcement</para>

        <para>BUGFIX in Paris projections definitions</para>

        <para>postgis_restore.pl cleanups</para>
      </simplesect>
    </sect1>

    <sect1>
      <title>Release 1.0.0</title>

      <para>Release date: 2005/04/19</para>

      <para>Final 1.0.0 release. Contains a few bug fixes, some improvements
      in the loader (most notably support for older postgis versions), and
      more docs.</para>

      <simplesect>
        <title>Upgrading</title>

        <para>If you are upgrading from release 1.0.0RC6 you <emphasis>DO
        NOT</emphasis> need a dump/reload.</para>

        <para>Upgrading from any other precedent release requires a
        dump/reload. See the <link linkend="upgrading">upgrading</link>
        chapter for more informations.</para>
      </simplesect>

      <simplesect>
        <title>Library changes</title>

        <para>BUGFIX in transform() releasing random memory address</para>

        <para>BUGFIX in force_3dm() allocating less memory then
        required</para>

        <para>BUGFIX in join selectivity estimator (defaults, leaks,
        tuplecount, sd)</para>
      </simplesect>

      <simplesect>
        <title>Other changes/additions</title>

        <para>BUGFIX in shp2pgsql escape of values starting with tab or
        single-quote</para>

        <para>NEW manual pages for loader/dumper</para>

        <para>NEW shp2pgsql support for old (HWGEOM) postgis versions</para>

        <para>NEW -p (prepare) flag for shp2pgsql</para>

        <para>NEW manual chapter about OGC compliancy enforcement</para>

        <para>NEW autoconf support for JTS lib</para>

        <para>BUGFIX in estimator testers (support for LWGEOM and schema
        parsing)</para>
      </simplesect>
    </sect1>

    <sect1>
      <title>Release 1.0.0RC6</title>

      <para>Release date: 2005/03/30</para>

      <para>Sixth release candidate for 1.0.0. Contains a few bug fixes and
      cleanups.</para>

      <simplesect>
        <title>Upgrading</title>

        <para>You need a dump/reload to upgrade from precedent releases. See
        the <link linkend="upgrading">upgrading</link> chapter for more
        informations.</para>
      </simplesect>

      <simplesect>
        <title>Library changes</title>

        <para>BUGFIX in multi()</para>

        <para>early return [when noop] from multi()</para>
      </simplesect>

      <simplesect>
        <title>Scripts changes</title>

        <para>dropped {x,y}{min,max}(box2d) functions</para>
      </simplesect>

      <simplesect>
        <title>Other changes</title>

        <para>BUGFIX in postgis_restore.pl scrip</para>

        <para>BUGFIX in dumper's 64bit support</para>
      </simplesect>
    </sect1>

    <sect1>
      <title>Release 1.0.0RC5</title>

      <para>Release date: 2005/03/25</para>

      <para>Fifth release candidate for 1.0.0. Contains a few bug fixes and a
      improvements.</para>

      <simplesect>
        <title>Upgrading</title>

        <para>If you are upgrading from release 1.0.0RC4 you <emphasis>DO
        NOT</emphasis> need a dump/reload.</para>

        <para>Upgrading from any other precedent release requires a
        dump/reload. See the <link linkend="upgrading">upgrading</link>
        chapter for more informations.</para>
      </simplesect>

      <simplesect>
        <title>Library changes</title>

        <para>BUGFIX (segfaulting) in box3d computation (yes,
        another!).</para>

        <para>BUGFIX (segfaulting) in estimated_extent().</para>
      </simplesect>

      <simplesect>
        <title>Other changes</title>

        <para>Small build scripts and utilities refinements.</para>

        <para>Additional performance tips documented.</para>
      </simplesect>
    </sect1>

    <sect1>
      <title>Release 1.0.0RC4</title>

      <para>Release date: 2005/03/18</para>

      <para>Fourth release candidate for 1.0.0. Contains bug fixes and a few
      improvements.</para>

      <simplesect>
        <title>Upgrading</title>

        <para>You need a dump/reload to upgrade from precedent releases. See
        the <link linkend="upgrading">upgrading</link> chapter for more
        informations.</para>
      </simplesect>

      <simplesect>
        <title>Library changes</title>

        <para>BUGFIX (segfaulting) in geom_accum().</para>

        <para>BUGFIX in 64bit architectures support.</para>

        <para>BUGFIX in box3d computation function with collections.</para>

        <para>NEW subselects support in selectivity estimator.</para>

        <para>Early return from force_collection.</para>

        <para>Consistency check fix in SnapToGrid().</para>

        <para>Box2d output changed back to 15 significant digits.</para>
      </simplesect>

      <simplesect>
        <title>Scripts changes</title>

        <para>NEW distance_sphere() function.</para>

        <para>Changed get_proj4_from_srid implementation to use PL/PGSQL
        instead of SQL.</para>
      </simplesect>

      <simplesect>
        <title>Other changes</title>

        <para>BUGFIX in loader and dumper handling of MultiLine shapes</para>

        <para>BUGFIX in loader, skipping all but first hole of
        polygons.</para>

        <para>jdbc2: code cleanups, Makefile improvements</para>

        <para>FLEX and YACC variables set *after* pgsql Makefile.global is
        included and only if the pgsql *stripped* version evaluates to the
        empty string</para>

        <para>Added already generated parser in release</para>

        <para>Build scripts refinements</para>

        <para>improved version handling, central Version.config</para>

        <para>improvements in postgis_restore.pl</para>
      </simplesect>
    </sect1>

    <sect1>
      <title>Release 1.0.0RC3</title>

      <para>Release date: 2005/02/24</para>

      <para>Third release candidate for 1.0.0. Contains many bug fixes and
      improvements.</para>

      <simplesect>
        <title>Upgrading</title>

        <para>You need a dump/reload to upgrade from precedent releases. See
        the <link linkend="upgrading">upgrading</link> chapter for more
        informations.</para>
      </simplesect>

      <simplesect>
        <title>Library changes</title>

        <para>BUGFIX in transform(): missing SRID, better error
        handling.</para>

        <para>BUGFIX in memory alignment handling</para>

        <para>BUGFIX in force_collection() causing mapserver connector
        failures on simple (single) geometry types.</para>

        <para>BUGFIX in GeometryFromText() missing to add a bbox cache.</para>

        <para>reduced precision of box2d output.</para>

        <para>prefixed DEBUG macros with PGIS_ to avoid clash with pgsql
        one</para>

        <para>plugged a leak in GEOS2POSTGIS converter</para>

        <para>Reduced memory usage by early releasing query-context palloced
        one.</para>
      </simplesect>

      <simplesect>
        <title>Scripts changes</title>

        <para>BUGFIX in 72 index bindings.</para>

        <para>BUGFIX in probe_geometry_columns() to work with PG72 and support
        multiple geometry columns in a single table</para>

        <para>NEW bool::text cast</para>

        <para>Some functions made IMMUTABLE from STABLE, for performance
        improvement.</para>
      </simplesect>

      <simplesect>
        <title>JDBC changes</title>

        <para>jdbc2: small patches, box2d/3d tests, revised docs and
        license.</para>

        <para>jdbc2: bug fix and testcase in for pgjdbc 8.0 type
        autoregistration</para>

        <para>jdbc2: Removed use of jdk1.4 only features to enable build with
        older jdk releases.</para>

        <para>jdbc2: Added support for building against pg72jdbc2.jar</para>

        <para>jdbc2: updated and cleaned makefile</para>

        <para>jdbc2: added BETA support for jts geometry classes</para>

        <para>jdbc2: Skip known-to-fail tests against older PostGIS
        servers.</para>

        <para>jdbc2: Fixed handling of measured geometries in EWKT.</para>
      </simplesect>

      <simplesect>
        <title>Other changes</title>

        <para>new performance tips chapter in manual</para>

        <para>documentation updates: pgsql72 requirement, lwpostgis.sql</para>

        <para>few changes in autoconf</para>

        <para>BUILDDATE extraction made more portable</para>

        <para>fixed spatial_ref_sys.sql to avoid vacuuming the whole
        database.</para>

        <para>spatial_ref_sys: changed Paris entries to match the ones
        distributed with 0.x.</para>
      </simplesect>
    </sect1>

    <sect1>
      <title>Release 1.0.0RC2</title>

      <para>Release date: 2005/01/26</para>

      <para>Second release candidate for 1.0.0 containing bug fixes and a few
      improvements.</para>

      <simplesect>
        <title>Upgrading</title>

        <para>You need a dump/reload to upgrade from precedent releases. See
        the <link linkend="upgrading">upgrading</link> chapter for more
        informations.</para>
      </simplesect>

      <simplesect>
        <title>Library changes</title>

        <para>BUGFIX in pointarray box3d computation</para>

        <para>BUGFIX in distance_spheroid definition</para>

        <para>BUGFIX in transform() missing to update bbox cache</para>

        <para>NEW jdbc driver (jdbc2)</para>

        <para>GEOMETRYCOLLECTION(EMPTY) syntax support for backward
        compatibility</para>

        <para>Faster binary outputs</para>

        <para>Stricter OGC WKB/WKT constructors</para>
      </simplesect>

      <simplesect>
        <title>Scripts changes</title>

        <para>More correct STABLE, IMMUTABLE, STRICT uses in
        lwpostgis.sql</para>

        <para>stricter OGC WKB/WKT constructors</para>
      </simplesect>

      <simplesect>
        <title>Other changes</title>

        <para>Faster and more robust loader (both i18n and not)</para>

        <para>Initial autoconf script</para>
      </simplesect>
    </sect1>

    <sect1>
      <title>Release 1.0.0RC1</title>

      <para>Release date: 2005/01/13</para>

      <para>This is the first candidate of a major postgis release, with
      internal storage of postgis types redesigned to be smaller and faster on
      indexed queries.</para>

      <simplesect>
        <title>Upgrading</title>

        <para>You need a dump/reload to upgrade from precedent releases. See
        the <link linkend="upgrading">upgrading</link> chapter for more
        informations.</para>
      </simplesect>

      <simplesect>
        <title>Changes</title>

        <para>Faster canonical input parsing.</para>

        <para>Lossless canonical output.</para>

        <para>EWKB Canonical binary IO with PG&gt;73.</para>

        <para>Support for up to 4d coordinates, providing lossless
        shapefile-&gt;postgis-&gt;shapefile conversion.</para>

        <para>New function: UpdateGeometrySRID(), AsGML(), SnapToGrid(),
        ForceRHR(), estimated_extent(), accum().</para>

        <para>Vertical positioning indexed operators.</para>

        <para>JOIN selectivity function.</para>

        <para>More geometry constructors / editors.</para>

        <para>PostGIS extension API.</para>

        <para>UTF8 support in loader.</para>
      </simplesect>
    </sect1>
</appendix>