ZOO-Project is an Open Source Implementation of the OGC Web Processing Service (WPS), it was released under a MIT/X-11 style license and is currently in incubation at OSGeo. It provides a WPS compliant developer-friendly framework to easily create and chain WPS Web services. This talk give a brief overview of the platform and summarize new capabilities and enhancement available in the 1.6.0 release. A brief introduction to WPS and a summary of the Open Source project history with its direct link with FOSS4G will be presented. Then an overview of the ZOO-Project will serve to introduce new functionalities and concepts available in the 1.6.0 release and highlight their interrests for applications developpers and users. Various use of OSGeo softwares, such as GDAL, GEOS, PostGIS, pgRouting, GRASS, OTB, SAGA, as WPS services through the ZOO-Project will be presented. The ZOO-Client, will be presented to show how it can be easily used to create automatically dynamic HTML forms to interact with WPS services. The ongoing developments and future innovations will be then presented.