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SimpleSAMLphp is an application written in native PHP that deals with authentication. The main focus of SimpleSAMLphp is providing support for:

• SAML 2.0 as a Service Provider (SP)
• SAML 2.0 as an Identity Provider (IdP)

However, it also supports many other identity protocols and frameworks, such as CAS, OpenID Connect, WS-Federation and OAuth, and is easily extendable, so you can develop your own modules if you like.

The community-led project has a large user base, a helpful user community and a diverse set of external contributors.

Last release

• 2026-11-09: The latest release is SimpleSAMLphp 2.5.4

Latest news

• 2024-12-02: New releases are now available on the download page!

• 2024-11-25: Please be advised that a new security release is coming op on Dec 2nd. Please read our mailing list

• 2024-06-07: SimpleSAMLphp board documents: The board have published documents detailing the strategy and operational approach and a funding solicitation for those who wish to support the project.

• 2023-11-10: SimpleSAMLphp Hackathon: On 30 January 2024 there will be a hackathon open to all interested in improving SimpleSAMLphp. It will take place in Copenhagen, co-hosted with the TIIME unconference on identity. Please get a side meeting ticket at the TIIME website if you want to participate.

• 2023-05-12: SimpleSAMLphp 2.0.4 is now available. Please check the downloads page for more information.

• 2023-03-29: SimpleSAMLphp 2.0.3 is now available. Please check the downloads page for more information.

• 2023-03-10: SimpleSAMLphp 2.0.2 is now available. Please check the downloads page for more information.

• 2023-03-10: SimpleSAMLphp 2.0.1 is now available. Please check the downloads page for more information.

• 2023-02-23: SimpleSAMLphp 2.0.0 is now available. Please check the downloads page for more information.

• 2023-01-31: The third (and likely final) release candidate for SimpleSAMLphp 2.0 is available. Please help us test this pre-release. Check the downloads page for more information.