**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)](/samlsp/)
* [**SAML 2.0** as an Identity Provider (IdP)](/samlidp/)
However, it also supports many other identity protocols and frameworks, such as CAS, OpenID Connect, WS-Federation and OAuth, and is easily [extendable](/modules), so you can develop your own modules if you like.
The community-led project has a large user base, a helpful [user community](/support) and a diverse set of external contributors.
Last release
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* _2025-03-11_: The [latest release](/download/) is **SimpleSAMLphp 2.3.7**
Latest news
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* _2024-12-02_: New releases are now available on the [download](https://simplesamlphp.org/download/) page!
* _2024-11-25_: Please be advised that a new security release is coming op on Dec 2nd. Please read our [mailing list](https://groups.google.com/g/simplesamlphp-announce)
* _2024-06-07_: **SimpleSAMLphp board documents**: The board have published documents detailing the [strategy and operational approach](https://github.com/simplesamlphp/governance/blob/main/docs/SimpleSAMLphp%20Strategy.md) and a [funding solicitation](https://github.com/simplesamlphp/governance/blob/main/docs/SimpleSAMLphp%20-%20Funding%20Solicitation.md) 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](https://tiime-unconference.eu/) on identity. Please [get a side meeting ticket](https://www.conferencemanager.dk/tiime/signup) at the TIIME website if you want to participate.
* _2023-05-12_: **SimpleSAMLphp 2.0.4** is now available. Please check the [downloads page](/download) for more information.
* _2023-03-29_: **SimpleSAMLphp 2.0.3** is now available. Please check the [downloads page](/download) for more information.
* _2023-03-10_: **SimpleSAMLphp 2.0.2** is now available. Please check the [downloads page](/download) for more information.
* _2023-03-10_: **SimpleSAMLphp 2.0.1** is now available. Please check the [downloads page](/download) for more information.
* _2023-02-23_: **SimpleSAMLphp 2.0.0** is now available. Please check the [downloads page](/download) 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](/download) for more information.