GeoServer is an Open Source server that will allow you to connect your information to the Geospatial Web.
With GeoServer you can publish and edit data using open standards. Your information is made available in a large variety of formats as maps/images or actual geospatial data.
GeoServer's transactional capabilities offer robust support for shared editing. GeoServer's focus is ease of use and support for standards, in order to serve as 'glue' for the geospatial web, connecting from legacy databases to many diverse clients.
GeoServer supports WFS-T and WMS open protocols from the OGC to produce JPEG, PNG, SVG, KML/KMZ, GML, PDF, Shapefiles and more. More information on specific features of GeoServer can be found here, and some samples of GeoServer in action are in the gallery.

What's New in This Release:
· [GEOS-3885] – Update Freemarker templates through REST API
· [GEOS-5325] – Add title and abstract to LayerGroupInfo
· [GEOS-5462] – The rendering thread can block forever under request cancellation
· [GEOS-5479] – Error in Documentation: tag used instead of
· [GEOS-5483] – json output in WPS extension does not work due to missing library
· [GEOS-5485] – Border artifacts when reprojecting single banded (scientific) raster data
Also, looking at the corresponding GeoTools release changelog we have the following extra goodies in:
· better support for chaining rendering transformations
· fixes to time/date handling in CQL
· Oracle specific SDO_NN function to find the N nearest objects to a given location