DSpace has released DSpace 1.6.0 demonstration repositories.
Here's an excerpt from the announcement:
The DSpace team announced today that an updated DSpace Demonstration Repository running DSpace 1.6.0 is now available for the community to use. The DSpace Demonstration Repository is a good place to run demonstrations, or to use as a sandbox for testing DSpace software before installing it. . . .
This demonstration site provides a sample repository with new DSpace 1.6.0 features enabled. This demonstration site also includes all DSpace interfaces (JSPUI, XMLUI, SWORD, OAI-PMH, LNI), connected to the same underlying database (so items created via XMLUI will also appear under JSPUI).
Also of interest: "screencast showing DSpace 1.6 authority control for author names and publishers from @mire.