The new Mapbender-release 2.4 is available!
Download:
https://mapbender.osgeo.org/servlets/ProjectDocumentList?folderID=55&expandFolder=55&folderID=31
More about the changes in Mapbender 2.4 you find in the Mapbender WIKI.
Have a look at:
http://www.mapbender.org/index.php/MapbenderHistory
Please read the description of the installation in the Mapbender Wiki:
http://www.mapbender.org/index.php/Installation