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February 2025 and has been the successor of Contao 5.4. 5.5 has been updated until 18 August 2025, after which it has been replaced by Contao 5.6.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 takes care of marketing at trakked. You probably know Christian from television (Contao TV), together wth Dennis, he leads us through the Contao Show. He is the founder of the Contao Academy and loves to share his Contao knowledge, collected since 2010. He is also a big fan of automation. When time allows for it, he likes to spend his spare time with his family or reading a book about personal development.

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