Today morning, Frank Warmerdam announced new release of PROJ.4 library and tools.
Changes from the NEWS file:
Microsoft Visual Studio 8 compatibility changes
Upgraded to EPSG 6.11.1 database
Several bug fixes to pj_transform() to handle transient errors properly
Fix Krovak projection (include +czech flag)
Added Roussilhe Stereographic projection from libproj4 (proj=rouss)
Added experimental +lon_wrap flag for alternate pj_transform() longitude wrapping behavior on output
Here are 4.5.0 packages to download: