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February 2025 and has been the successor of Contao 5.4. 5.5 has been updated until 18 August 2025, after which it has been replaced by Contao 5.6.

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We're on our way to the Contao Conference in Düsseldorf

The trakked team will be attending the Contao conference again this year. We look forward to exciting discussions, inspiring presentations, and of course, meeting the community.