Contao Open Source CMS 5.5.5

Contao 5.5.5, a new version of the Contao open source CMS, has been released.

This release fixes a bug introduced in 5.5.4 with the backward compatibility for error templates, which prevented the correct activation of the maintenance mode (and thus also any update possibility via Contao Manager).

Changelog of the fixed issues in Contao 5.5.5:

  • #8195 Adjust the service_unavailable namespace for the maintenance mode ( zoglo )

About Contao 5.5

The first stable version of Contao 5.5 has been released on 15 February 2025 and has been the successor of Contao 5.4. 5.5 has been updated until 18 August 2025, after which it has been replaced by Contao 5.6.

Christian Feneberg

Christian handles marketing and project management at trakked. You may already know him from Contao TV, where he works alongside Dennis and Christian B. hosts the Contao Show. He enjoys sharing his extensive knowledge of Contao, whether through video tutorials from the Contao Academy or as a speaker at conferences. In his free time, he loves spending time with his family and enjoying nature.

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