Just for your information:
For the 2.1-beta2 release (http://sourceforge.net/projects/geoserver/files/GeoServer/2.1-beta2/geoserver-2.1-beta2-notes.txt/view)
the file contains a wrong version number, it should be 16728 instead of 15130
[http://jira.codehaus.org/secure/ReleaseNote.jspa?projectId=10311&version=16728](http://jira.codehaus.org/secure/ReleaseNote.jspa?projectId=10311&version=16728)
Frank