Release Notes: This release reworks pj_transform() to avoid applying ellipsoid to ellipsoid transformations as a datum shift when no datum info is available. It avoids applying "change of ellipsoid" during datum shifting based on ellipsoids getting changed to spheres for spherical projections. It has been upgraded to EPSG 6.13.
Release Notes: EPSG was upgraded to the 6.11.1 coordinate system database. Krovak projection was fixed up, and Roussilhe Stereographic projection was added. The experimental +lon_wrapp flag was added for longitude wrapping control.
Release Notes: JNI (Java) wrappers were added along with stereoa and geos projections. The tools are now built against PROJ DLL on Windows by default. Various fixes were made.
Release Notes: Corrections were made to datum shifting and prime meridian support. An upgrade was made to the EPSG 6.5 coordinate system database.
Release Notes: Primarily, this release fixes a serious bug with the datum shift calculations introduced in 4.4.4.
Release Notes: A new proj_api.h include file (a public include file only defining stuff required by external applications), support for Canadian NTv1 datum shift files, fixes for 7-parameter datum shifting support, a new "epsg" translation file to translate all EPSG projected and geographic coordinate system definitions into a PROJ.4 equivalent, new cs2cs documentation in the man page and fixes for the developer man page, new pj_init_plus(), pj_is_latlong(), and pj_latlong_from_proj() API entry points, slightly better builds for Windows, and various other minor bugfixes.
Release Notes: Preliminary support for datum shifting has been added.