http://mapserver.org/download.html

Binary distributions will follow shortly as will a new demo. Nearly 100 tickets were closed as part of this effort. Major feature additions include:

• MS RFC 30: Support for WMS 1.3.0
• MS RFC 40: Label text alignment and wrapping
• MS RFC 44: Restore URL modification of mapfiles to pre-5.0 levels
• MS RFC 47: Move IGNORE_MISSING_DATA to run-time configuration
• MS RFC 48: GEOTRANSFORM Geometry operations
• MS RFC 49: Symbology, Labeling, and Cartography Improvements
• MS RFC 56: Improved security relative to untrusted directories and mapfiles

Full RFC text can be found at:

http://mapserver.org/development/rfc/

Other notable enhancements include:

• improved polygon label placement
• re-write of much of the PostGIS driver code

The full 5.4.0 change log can be found at: http://trac.osgeo.org/mapserver/browser/tags/rel-5-4-0/mapserver/HISTORY.TXT