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The latest SNAPSHOT tree will generally be at the bottom of the directory listing with the most recent date and the highest version available. Within each snapshot directory, a month's worth of builds are available in dated snapshots, in both zip and tar.gz format. At the moment, we do not have regular builds of the Windows installer available. In all other respects apart from the filename, these builds are identical to the standard installer format installers we release officially and can be installed in the usual fashion by unpacking and running the install script.
At the moment, we do not have regular builds of the Windows installer available, but any we make available can be found in:
http://shibboleth.net/downloads/identity-provider/testing/
Of course, you should use a development system and a copy of your real configuration whenever testing. If you run into any problems, you are encouraged to file bugs at https://issues.shibboleth.net/
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