> For the complete documentation index, see [llms.txt](https://docs.defguard.net/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.defguard.net/1.6/in-depth/client-application-feature-compatibility.md).

# Client application feature compatibility

Defguard consists of multiple **server-side components** (Core, Gateway, Proxy) and multiple **client applications** (Desktop, Mobile).

For the purpose of compatibility and feature availability, this documentation assumes that:

* all server-side components are deployed in the **same version**, and are collectively referred to as **Server**,
* the user-facing software (Desktop or Mobile) is referred to as the **Client**.

Use this page to quickly verify whether a given feature will work in your environment (Server and Client combinations).

### Feature compatibility matrix

<table><thead><tr><th width="187.515625">Feature</th><th width="140.56640625">Introduced in</th><th>Minimum Server version</th><th>Minimum Client version</th></tr></thead><tbody><tr><td><a href="/pages/7YeZaAYsDFX94uQNODnp">Service Locations</a></td><td>1.6</td><td>1.6</td><td>1.6</td></tr><tr><td><a href="/pages/lHS5IKT5Aqfiu9pw5IJu">Setting MTU</a></td><td>1.6</td><td>Client-only feature</td><td>1.6</td></tr><tr><td><a href="/pages/5Kl16F7qeQtMAsbkDPKT">Desktop Client Auto Provisioning</a></td><td>1.6</td><td>1.6</td><td>1.6</td></tr><tr><td><a href="/pages/mV08hfOBDh5NYRYxRpzt#client-traffic-policy-selection">Client Traffic Policy Selection</a></td><td>1.6</td><td>1.6</td><td>1.6</td></tr></tbody></table>