# Compatibility

This document holds the compatibility information for Semantic MediaWiki (SMW).

For a full list of changes in each release, see the [release notes](https://github.com/SemanticMediaWiki/SemanticMediaWiki/tree/master/docs/releasenotes).
For instructions on how to install the latest version of Semantic MediaWiki (SMW), see the
[installation instructions](https://github.com/SemanticMediaWiki/SemanticMediaWiki/blob/master/docs/INSTALL.md).

## Platform compatibility and release status

The PHP and MediaWiki versions listed have been tested and are known to work.
Semantic MediaWiki may also work with more recent versions of PHP and MediaWiki, though this is not guaranteed.

Increases of minimum requirements are indicated in bold.

<table class="compatibility">
    <tr>
        <th>SMW</th>
        <th>Status</th>
        <th>First release</th>
        <th>Latest release</th>
        <th>PHP</th>
        <th>MediaWiki</th>
        <th>Notes</th>
    </tr>
    <tr>
        <th><a href="https://www.semantic-mediawiki.org/wiki/Semantic_MediaWiki_6.0.0">6.0.x</a></th>
        <td><strong>Stable release</strong></td>
        <td>2025-08-12</td>
        <td>2025-08-26</td>
        <td>8.1 - 8.4</td>
        <td><strong>1.43</strong> - 1.44</td>
        <td></td>
    </tr>
    <tr>
        <th><a href="https://www.semantic-mediawiki.org/wiki/Semantic_MediaWiki_5.1.0">5.1.x</a></th>
        <td>Obsolete release</td>
        <td>2025-07-24</td>
        <td>2025-07-24</td>
        <td>8.1 - 8.4</td>
        <td>1.39 - 1.43.1</td>
        <td>MW 1.43.1 is the final version supported by the SMW 5.x series.</td>
    </tr>
    <tr>
        <th><a href="https://www.semantic-mediawiki.org/wiki/Semantic_MediaWiki_5.0.0">5.0.x</a></th>
        <td>Obsolete release</td>
        <td>2025-03-10</td>
        <td>2025-05-24</td>
        <td><strong>8.1</strong> - 8.4</td>
        <td><strong>1.39</strong> - 1.43.1</td>
        <td></td>
    </tr>
    <tr>
        <th><a href="https://www.semantic-mediawiki.org/wiki/Semantic_MediaWiki_4.2.0">4.2.x</a></th>
        <td>Obsolete release</td>
        <td>2024-07-18</td>
        <td>2024-07-18</td>
        <td>7.4 - 8.2</td>
        <td>1.35 - 1.41</td>
        <td></td>
    </tr>
    <tr>
        <th><a href="https://www.semantic-mediawiki.org/wiki/Semantic_MediaWiki_4.1.0">4.1.x</a></th>
        <td>Obsolete release</td>
        <td>2023-01-21</td>
        <td>2024-02-17</td>
        <td><strong>7.4</strong> - 8.1</td>
        <td>1.35 - 1.39</td>
        <td>4.1.1 or higher needed for PHP 8.1+</td>
    </tr>
    <tr>
        <th><a href="https://www.semantic-mediawiki.org/wiki/Semantic_MediaWiki_4.0.0">4.0.x</a></th>
        <td>Obsolete release</td>
        <td>2022-01-18</td>
        <td>2022-07-21</td>
        <td><strong>7.3</strong> - 8.0</td>
        <td><strong>1.35</strong> - 1.37</td>
        <td>Not compatible with PHP 8.1+ or MW 1.39</td>
    </tr>
    <tr>
        <th><a href="https://www.semantic-mediawiki.org/wiki/Semantic_MediaWiki_3.2.0">3.2.x</a></th>
        <td>Obsolete release</td>
        <td>2020-09-07</td>
        <td>2021-03-29</td>
        <td><strong>7.1.0</strong> - 7.4.x</td>
        <td>1.31.0 - 1.35.x</td>
        <td></td>
    </tr>
    <tr>
        <th><a href="https://www.semantic-mediawiki.org/wiki/Semantic_MediaWiki_3.1.0">3.1.x</a></th>
        <td>Obsolete release</td>
        <td>2019-09-23</td>
        <td>2020-04-19</td>
        <td><strong>7.0.0</strong> - 7.3.x</td>
        <td><strong>1.31.0</strong> - 1.34.x</td>
        <td></td>
    </tr>
    <tr>
        <th><a href="https://www.semantic-mediawiki.org/wiki/Semantic_MediaWiki_3.0.0">3.0.x</a></th>
        <td>Obsolete release</td>
        <td>2018-10-11</td>
        <td>2019-04-11</td>
        <td><strong>5.6.0</strong> - 7.2.x</td>
        <td><strong>1.27.0</strong> - 1.31.x</td>
        <td></td>
    </tr>
    <tr>
        <th><a href="https://www.semantic-mediawiki.org/wiki/Semantic_MediaWiki_2.5.0">2.5.x</a></th>
        <td>Obsolete release</td>
        <td>2017-03-14</td>
        <td>2018-09-07</td>
        <td><strong>5.5.0</strong> - 7.1.x</td>
        <td><strong>1.23.0</strong> - 1.30.x</td>
        <td></td>
    </tr>
    <tr>
        <th><a href="https://www.semantic-mediawiki.org/wiki/Semantic_MediaWiki_2.4.0">2.4.x</a></th>
        <td>Obsolete release</td>
        <td>2016-07-09</td>
        <td>2017-02-15</td>
        <td>5.3.2 - 7.0.x</td>
        <td>1.19.0 - 1.27.x</td>
        <td></td>
    </tr>
    <tr>
        <th><a href="https://www.semantic-mediawiki.org/wiki/Semantic_MediaWiki_2.3.0">2.3.x</a></th>
        <td>Obsolete release</td>
        <td>2015-10-25</td>
        <td>2016-01-06</td>
        <td>5.3.2 - 5.6.x</td>
        <td>1.19.0 - 1.25.x</td>
        <td></td>
    </tr>
    <tr>
        <th><a href="https://www.semantic-mediawiki.org/wiki/Semantic_MediaWiki_2.2.0">2.2.x</a></th>
        <td>Obsolete release</td>
        <td>2015-05-09</td>
        <td>2015-10-10</td>
        <td>5.3.2 - 5.6.x</td>
        <td>1.19.0 - 1.25.x</td>
        <td></td>
    </tr>
    <tr>
        <th><a href="https://www.semantic-mediawiki.org/wiki/Semantic_MediaWiki_2.1.0">2.1.x</a></th>
        <td>Obsolete release</td>
        <td>2015-01-19</td>
        <td>2015-03-30</td>
        <td>5.3.2 - 5.6.x</td>
        <td>1.19.0 - 1.24.x</td>
        <td></td>
    </tr>
    <tr>
        <th><a href="https://www.semantic-mediawiki.org/wiki/Semantic_MediaWiki_2.0.0">2.0.x</a></th>
        <td>Obsolete release</td>
        <td>2014-08-04</td>
        <td>2014-09-27</td>
        <td>5.3.2 - 5.6.x</td>
        <td>1.19.0 - 1.23.x</td>
        <td></td>
    </tr>
    <tr>
        <th><a href="https://www.semantic-mediawiki.org/wiki/Semantic_MediaWiki_1.9.0">1.9.x</a></th>
        <td>Obsolete release</td>
        <td>2014-01-03</td>
        <td>2014-04-18</td>
        <td>5.3.2 - 5.6.x</td>
        <td>1.19.0 - 1.22.x</td>
        <td></td>
    </tr>
</table>

## Database compatibility

### SQL support

<table class="compatibility">
    <tr>
        <th>SMW</th>
        <th>MySQL</th>
        <th>SQLite</th>
        <th>PostgreSQL</th>
    </tr>
    <tr>
        <th>6.x</th>
        <td>Full support (5.7.0+)</td>
        <td>Full support <strong>(3.24.0+)</strong></td>
        <td>Full support (10+)</td>
    </tr>
    <tr>
        <th>5.x</th>
        <td>Full support <strong>(5.7.0+)</strong></td>
        <td>Full support <strong>(3.8.0+)</strong></td>
        <td>Full support <strong>(10+)</strong></td>
    </tr>
    <tr>
        <th>4.x</th>
        <td>Full support (5.5.8+)</td>
        <td>Full support (3.3.7+)</td>
        <td>Full support (9.5.0+)</td>
    </tr>
    <tr>
        <th>3.2.x</th>
        <td>Full support (5.5.8+)</td>
        <td>Full support (3.3.7+)</td>
        <td>Full support <strong>(9.5.0+)</strong></td>
    </tr>
    <tr>
        <th>3.1.x</th>
        <td>Full support (5.5.8+)</td>
        <td>Full support (3.3.7+)</td>
        <td>Full support (9.2.0+)</td>
    </tr>
    <tr>
        <th>3.0.x</th>
        <td>Full support (5.5.8+)</td>
        <td>Full support (3.3.7+)</td>
        <td>Full support <strong>(9.2.0+)</strong></td>
    </tr>
    <tr>
        <th>2.5.x</th>
        <td>Full support <strong>(5.5.8+)</strong></td>
        <td>Full support (3.3.7+)</td>
        <td>Full support <strong>(9.1.0+)</strong></td>
    </tr>
    <tr>
        <th>2.4.x</th>
        <td>Full support (5.0.2+)</td>
        <td>Full support (3.3.7+)</td>
        <td>Full support (9.0.0+)</td>
    </tr>
    <tr>
        <th>2.3.x</th>
        <td>Full support (5.0.2+)</td>
        <td>Full support (3.3.7+)</td>
        <td>Full support (9.0.0+)</td>
    </tr>
    <tr>
        <th>2.2.x</th>
        <td>Full support (5.0.2+)</td>
        <td>Full support (3.3.7+)</td>
        <td>Full support (9.0.0+)</td>
    </tr>
    <tr>
        <th>2.1.x</th>
        <td>Full support (5.0.2+)</td>
        <td>Full support (3.3.7+)</td>
        <td>Full support <strong>(9.0.0+)</strong></td>
    </tr>
    <tr>
        <th>2.0.x</th>
        <td>Full support (5.0.2+)</td>
        <td>Full support (3.3.7+)</td>
        <td>Beta support (8.3.0+)</td>
    </tr>
    <tr>
        <th>1.9.x</th>
        <td>Full support <strong>(5.0.2+)</strong></td>
        <td>Full support <strong>(3.3.7+)</strong></td>
        <td>Beta support <strong>(8.3.0+)</strong></td>
    </tr>
</table>

Note that MS SQL Server and Oracle are not supported as database backends.

### Triple store support

<table class="compatibility">
    <tr>
        <th>SMW</th>
        <th><a href="https://jena.apache.org/">Fuseki</a></th>
        <th><a href="https://github.com/openlink/virtuoso-opensource">Virtuoso</a></th>
        <th><a href="https://github.com/garlik/4store">4store</a></th>
        <th><a href="http://rdf4j.org/">Sesame</a></th>
        <th><a href="https://wiki.blazegraph.com/">Blazegraph</a></th>
    </tr>
    <tr>
        <th>3.2.x</th>
        <td>Full support<br />(1.x >=1.1) + 2.4.0</td>
        <td>Full support<br />(6.x >=6.1) + 7.2<sup>[t.1]</sup></td>
        <td>Beta support<br />(1.x >=1.1)<sup>[t.2]</sup></td>
        <td>Full support<br />(2.8.x)</td>
        <td>Full support<br />(1.5.2) + 2.1.0<sup>[t.3]</sup></td>
    </tr>
    <tr>
        <th>3.1.x</th>
        <td>Full support<br />(1.x >=1.1) + 2.4.0</td>
        <td>Full support<br />(6.x >=6.1) + 7.2<sup>[t.1]</sup></td>
        <td>Beta support<br />(1.x >=1.1)<sup>[t.2]</sup></td>
        <td>Full support<br />(2.8.x)</td>
        <td>Full support<br />(1.5.2) + 2.1.0<sup>[t.3]</sup></td>
    </tr>
    <tr>
        <th>3.0.x</th>
        <td>Full support<br />(1.x >=1.1) + 2.4.0</td>
        <td>Full support<br />(6.x >=6.1) + 7.2<sup>[t.1]</sup></td>
        <td>Beta support<br />(1.x >=1.1)<sup>[t.2]</sup></td>
        <td>Full support<br />(2.8.x)</td>
        <td>Full support<br />(1.5.2) + 2.1.0<sup>[t.3]</sup></td>
    </tr>
    <tr>
        <th>2.5.x</th>
        <td>Full support<br />(1.x >=1.1) + 2.4.0</td>
        <td>Full support<br />(6.x >=6.1) + 7.2<sup>[t.1]</sup></td>
        <td>Beta support<br />(1.x >=1.1)<sup>[t.2]</sup></td>
        <td>Full support<br />(2.8.x)</td>
        <td>Full support<br />(1.5.2) + 2.1.0<sup>[t.3]</sup></td>
    </tr>
    <tr>
        <th>2.4.x</th>
        <td>Full support<br />(1.x >=1.1) + 2.4.0</td>
        <td>Full support<br />(6.x >=6.1) + 7.2<sup>[t.1]</sup></td>
        <td>Beta support<br />(1.x >=1.1)<sup>[t.2]</sup></td>
        <td>Full support<br />(2.8.x)</td>
        <td>Full support<br />(1.5.2) + 2.1.0<sup>[t.3]</sup></td>
    </tr>
    <tr>
        <th>2.3.x</th>
        <td>Full support<br />(1.x >=1.1)</td>
        <td>Full support<br />(6.x >=6.1) + 7.1<sup>[t.1]</sup></td>
        <td>Beta support<br />(1.x >=1.1)<sup>[t.2]</sup></td>
        <td>Full support<br />(2.7.x)</td>
        <td>Full support<br />(1.5.2)</td>
    </tr>
    <tr>
        <th>2.2.x</th>
        <td>Full support<br />(1.x >=1.1)</td>
        <td>Full support<br />(6.x >=6.1) + 7.1<sup>[t.1]</sup></td>
        <td>Beta support<br />(1.x >=1.1)<sup>[t.2]</sup></td>
        <td>Full support<br />(2.7.x)</td>
        <td>Beta support<br />(1.5.2)</td>
    </tr>
    <tr>
        <th>2.1.x</th>
        <td>Full support<br />(1.x >=1.1)</td>
        <td>Full support<br />(6.x >=6.1)</td>
        <td>Beta support<br />(1.x >=1.1)</td>
        <td>Full support<br />(2.7.x)</td>
        <td>Not tested</td>
    </tr>
    <tr>
        <th>2.0.x</th>
        <td>Full support</td>
        <td>Full support</td>
        <td>Beta support</td>
        <td>Beta support</td>
        <td>Not tested</td>
    </tr>
    <tr>
        <th>1.9.x</th>
        <td>No support</td>
        <td>Beta support</td>
        <td>Beta support</td>
        <td>Beta support</td>
        <td>Not tested</td>
    </tr>
</table>

- "Full support" means that all functionality has been verified to work and that it can be used in production
- "Beta support" means that most functionality has been verified to work, though stability is still low, and things might be buggy

### ElasticStore support

<table class="compatibility">
    <tr>
        <th>SMW</th>
        <th>Elasticsearch</th>
        <th>OpenSearch</th>
        <th>Notes</th>
    </tr>
        <tr>
        <th><a href="https://www.semantic-mediawiki.org/wiki/Semantic_MediaWiki_6.0.0">6.0.x</a></th>
        <td>7.10.2</td>
        <td>1.3.x+</td>
        <td></td>
    </tr>
    <tr>
        <th><a href="https://www.semantic-mediawiki.org/wiki/Semantic_MediaWiki_5.1.0">5.1.x</a></th>
        <td>7.10.2</td>
        <td>1.3.x+</td>
        <td></td>
    <tr>
        <th><a href="https://www.semantic-mediawiki.org/wiki/Semantic_MediaWiki_5.0.0">5.0.x</a></th>
        <td>7.10.2</td>
        <td>1.3.x+</td>
        <td>
        Confirmed to work with Elasticsearch 7.10.2 (MW 1.43.1).<br />
        <a href="https://github.com/SemanticMediaWiki/SemanticMediaWiki/issues/6219#issuecomment-3214084025">Confirmed to work with OpenSearch 2.15.0+ (MW 1.43.1)</a>
        </td>
    </tr>
    <tr>
        <th><a href="https://www.semantic-mediawiki.org/wiki/Semantic_MediaWiki_4.1.3">4.1.3 - 4.2.x</a></th>
        <td>7.10.2</td>
        <td>Not supported</td>
        <td><a href="https://github.com/SemanticMediaWiki/SemanticMediaWiki/issues/5611#issuecomment-1962729300">Confirmed to work with Elasticsearch 7.10.2 (MW 1.39)</a></td>
    </tr>
    <tr>
        <th><a href="https://www.semantic-mediawiki.org/wiki/Semantic_MediaWiki_4.1.0">4.1.0 - 4.1.2</a></th>
        <td>6.5.x - 6.8.23</td>
        <td>Not supported</td>
        <td><a href="https://github.com/SemanticMediaWiki/SemanticMediaWiki/issues/5328">Confirmed not to work with Elasticsearch 7.x (MW 1.39)</a></td>
    </tr>
    <tr>
        <th><a href="https://www.semantic-mediawiki.org/wiki/Semantic_MediaWiki_4.0.0">4.0.x</a></th>
        <td>6.5.x - 6.8.23</td>
        <td>Not supported</td>
        <td></td>
    </tr>
    <tr>
        <th><a href="https://www.semantic-mediawiki.org/wiki/Semantic_MediaWiki_3.2.0">3.2.x</a></th>
        <td>5.5.x - 6.8.23</td>
        <td>Not supported</td>
        <td></td>
    </tr>
    <tr>
        <th><a href="https://www.semantic-mediawiki.org/wiki/Semantic_MediaWiki_3.1.0">3.1.x</a></th>
        <td>5.5.x - 6.8.23</td>
        <td>Not supported</td>
        <td></td>
    </tr>
    <tr>
        <th><a href="https://www.semantic-mediawiki.org/wiki/Semantic_MediaWiki_3.0.0">3.0.x</a></th>
        <td>5.3.x - 6.8.23</td>
        <td>Not supported</td>
        <td></td>
    </tr>
</table>

- The minimum supported version of Elasticsearch follows the [CirrusSearch requirements](https://www.mediawiki.org/wiki/Extension:CirrusSearch#Dependencies).
- [OpenSearch](https://opensearch.org/) is a fork of Elasticsearch OSS 7.10.2, governed by the OpenSearch Software Foundation (a project of The Linux Foundation), and Wikimedia is [migrating to it](https://phabricator.wikimedia.org/T370147).

### Notes

The information in brackets denotes the versions with which SMW is known to work. SMW might also work with different versions, especially more recent ones, though this is not guaranteed.

- <sup>[t.1]</sup> On an irregular test plan with [Virtuoso 7.2](https://travis-ci.org/mwjames/SemanticMediaWiki/builds/97294290)
- <sup>[t.2]</sup> On an irregular test plan with [4store 1.1.4](https://travis-ci.org/mwjames/SemanticMediaWiki/builds/61200454)
- <sup>[t.3]</sup> [#1583](https://github.com/SemanticMediaWiki/SemanticMediaWiki/issues/1583)