[gis] Dropped official support for GDAL < 1.6

django/contrib/gis/gdal/geometries.py

@@ -198,14 +198,6 @@ class OGRGeometry(GDALBase):
 
     def _get_coord_dim(self):
         "Returns the coordinate dimension of the Geometry."
-        if isinstance(self, GeometryCollection) and GDAL_VERSION < (1, 5, 2):
-            # On GDAL versions prior to 1.5.2, there exists a bug in which
-            # the coordinate dimension of geometry collections is always 2:
-            #   http://trac.osgeo.org/gdal/ticket/2334
-            # Here we workaround by returning the coordinate dimension of the
-            # first geometry in the collection instead.
-            if len(self):
-                return capi.get_coord_dim(capi.get_geom_ref(self.ptr, 0))
         return capi.get_coord_dim(self.ptr)
 
     def _set_coord_dim(self, dim):

docs/ref/contrib/gis/install/geolibs.txt

@@ -12,7 +12,7 @@ Program                   Description                           Required
 ========================  ====================================  ================================  ==========================
 :ref:`GEOS <ref-geos>`    Geometry Engine Open Source           Yes                               3.3, 3.2, 3.1, 3.0
 `PROJ.4`_                 Cartographic Projections library      Yes (PostgreSQL and SQLite only)  4.8, 4.7, 4.6, 4.5, 4.4
-:ref:`GDAL <ref-gdal>`    Geospatial Data Abstraction Library   No (but, required for SQLite)     1.9, 1.8, 1.7, 1.6, 1.5
+:ref:`GDAL <ref-gdal>`    Geospatial Data Abstraction Library   No (but, required for SQLite)     1.9, 1.8, 1.7, 1.6
 :ref:`GeoIP <ref-geoip>`  IP-based geolocation library          No                                1.4
 `PostGIS`__               Spatial extensions for PostgreSQL     Yes (PostgreSQL only)             2.0, 1.5, 1.4, 1.3
 `SpatiaLite`__            Spatial extensions for SQLite         Yes (SQLite only)                 3.0, 2.4, 2.3
@@ -24,7 +24,6 @@ Program                   Description                           Required
     GEOS 3.1.0 2009-03-11
     GEOS 3.2.0 2009-12-14
     GEOS 3.3.0 2011-05-30
-    GDAL 1.5.0 2007-12-20
     GDAL 1.6.0 2008-12-04
     GDAL 1.7.1 2010-02-08
     GDAL 1.8.0 2011-01-13