Below is the documentation available for V3 of the Shibboleth Service Provider, including all 3.x patch and minor upgrade releases. Documentation is split up in to two parts: documentation meant for individuals that are deploying and managing a Service Provider and documentation related to building/developing it.
The current stable release of the Service Provider is V3.2.3, and there is no supported previous stable release.
All software, including archived releases, is available from https://shibboleth.net/downloads/service-provider/ and each source and Windows release is accompanied by a detached PGP signature using one of the keys listed in the project's PGP_KEYS file.
All our software is licensed under the Apache 2.0 open source software license.
High-level information to get started with SAML and Shibboleth can be found in the Concepts wiki space.