> For the complete documentation index, see [llms.txt](https://help.security.gallagher.com/knowledge-hub/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.security.gallagher.com/knowledge-hub/products/cc-software/reference.md).

# Reference

Find Command Centre limits, compatibility, release, feature, and database sizing data.

Use these references to plan, deploy, and maintain Command Centre.

### Reference information

<table data-view="cards"><thead><tr><th></th><th></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td><i class="fa-key">:key:</i> <strong>Command Centre Licensing</strong></td><td>Review license types, capacity limits, features, and upgrade eligibility.</td><td><a href="/knowledge-hub/products/cc-software/reference/command-centre-licencing.md">Command Centre Licensing</a></td></tr><tr><td><i class="fa-table">:table:</i> <strong>Command Centre compatibility matrix</strong></td><td>Check supported platforms, hardware, and upgrade paths for each Command Centre version.</td><td><a href="/knowledge-hub/products/cc-software/reference/command-centre-compatibility-matrix.md">Command Centre compatibility matrix</a></td></tr><tr><td><i class="fa-calendar">:calendar:</i> <strong>Command Centre release dates</strong></td><td>Review release dates, platform support, and lifecycle milestones.</td><td><a href="/knowledge-hub/products/cc-software/reference/command-centre-release-dates.md">Command Centre release dates</a></td></tr><tr><td><i class="fa-list-check">:list-check:</i> <strong>Command Centre feature introduction</strong></td><td>Find the Command Centre version that introduced a feature.</td><td><a href="/knowledge-hub/products/cc-software/reference/command-centre-feature-introduction.md">Command Centre feature introduction</a></td></tr><tr><td><i class="fa-gauge-high">:gauge-high:</i> <strong>Command Centre limits</strong></td><td>Reference Command Centre software and controller configuration limits.</td><td><a href="/knowledge-hub/products/cc-software/reference/command-centre-limits.md">Command Centre limits</a></td></tr><tr><td><i class="fa-database">:database:</i> <strong>Database sizes and examples</strong></td><td>Estimate database storage from site data and archiving needs.</td><td><a href="/knowledge-hub/products/cc-software/reference/databases-sizes-and-examples.md">Database sizes and examples</a></td></tr></tbody></table>


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