PostGIS 0.5

- New functions
  - Dimension()
  - GeometryType()
  - Envelope() 
  - X(), Y(), Z()
  - NumPoints()
  - PointN()
  - ExteriorRing()
  - NumInteriorRings()
  - InteriorRingN()
  - NumGeometries()
  - GeometryN()
  - Length_Spheroid()
  - Length3D_Spheroid()
  - AsBinary() + XDR and NDR variants
  - force_collection()
- Removed functions
  - wkb_ndr()
  - wkb_xdr()
- New Objects
  - SPHEROID(<NAME>,<SEMIMAJOR AXIS>,<INVERSE FLATTENING>)
    To be used with the length_spheroid functions for accurate
    length calculations on lat/lon data.
- Minor bug fixes
- Internal Functions
  - Extra constructors to make geometry manipulation easier
- Structural Reorganization
  - Broke postgis.c up into four new files
    postgis_debug.c -- debugging functions
    postgis_fn.c -- generic functions (like length())
    postgis_ops.c -- operators and indexing functions
    postgis_inout.c -- type support functions and data conversion functions


PostGIS 0.2
2001/06/19

- New functions
  - extent()
  - force_2d()
  - force_3d()
  - wkb_xdr()
  - wkb_ndr()
  - translate()
- Fixes
  - Cygwin compilation (Norman Vine)
  - i386 byte alignment fixed
  - 'VACUUM ANALYZE' fixed
- Other
  - documentation in docbook xml
  - example program for WKB access
  - removed 'make test' until we can get regression
    working more cleanly


PostGIS 0.1
2001/05/25

- Initial release!
- 'geometry' and 'box3d' types.
- Parsing routines for all possible geometries in OGIS text format 
  (POINT, LINESTRING, POLYGON, MULTIPOINT, MULTILINESTRING, MULTIPOLYGON,
  GEOMETRYCOLLECTION).
- Output routines for all possible geometries in OGIS text format.
- area2d(), area3d()
- length3d(), length3d()
- perimeter2d(), perimeter3d()
- truely_inside()
- rtree index support functions
- gist index support functions

