SilverStripe

Verified detail: Open-source CMS and extensible framework.

CategoryCMS

Best suited to

Editorial sites and structured publishing.

Pricing & plansFree license; hosting billed separately

Key facts

Verified detail	Open-source CMS and extensible framework
Best suited to	Editorial sites and structured publishing.
Before you commit	Before choosing: who handles hosting, security updates and backups?
Pricing & plans	Free license; hosting billed separately Official website ↗
Source	www.silverstripe.org ↗

Oct 21, 2026

SilverStripe CMS Overview · Purple Spider Web Design

Free license; hosting billed separately

Software license only; hosting and operations cost extra.

Live websites detected by BuiltWith. Leading countries; partial coverage. · Source ↗

Company name	Silverstripe
Country	New Zealand

Nov 2006
Governance
SilverStripe switched from proprietary software to a free open-source CMS, opening its code and development ecosystem to the wider community.
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Nov 8, 2017
Product update
SilverStripe 4 reached stable release as its first long-term-support version, introducing a modernized platform with more than 200 compatible modules.
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May 8, 2023
Product update
Silverstripe CMS 5 introduced a new major-version cycle, updating dependencies and removing technical debt that could not safely change in minor releases.
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Jun 10, 2025
Product update
Silverstripe CMS 6 became stable with breaking architectural and validation changes, while selected modules lost commercial support or moved to community maintenance.
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Jun 10, 2025
Shutdown
Silverstripe confirmed that CMS 4 no longer had official support, meaning newly discovered vulnerabilities would not receive vendor security fixes.
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