Contao Open Source CMS 5.3.14

Contao 5.3.14, a new version of the Contao open source CMS, has been released.

As always, this release contains all relevant bugfixes from the latest 4.13.48. In addition, Twig templates in subdirectories are now handled correctly in the theme export and various minor bugfixes have been fixed. Above all, however, this release fixes a performance problem in the security voters, which was particularly significant for large installations with several 10,000 content elements.

Why is there a bugfix release published shortly before a security vulnerability is closed?

When Contao 4.9.6 was released, we did not have this separation yet. There were problems with the update via the Contao Manager as well as bugs that had to be fixed the next day in a new version 4.9.7. Therefore, the core team decided not to mix security and bugfix versions anymore. Security releases will henceforth contain only the changes necessary to close the vulnerabilities.

Changelog of the fixed issues in Contao 5.3.14:

About Contao 5.3 LTS

The first stable version of Contao 5.3 has been released on February 16, 2024, replacing Contao 4.13 as the long term support version. As an LTS version, 5.3 will be provided with bug fixes until February 14, 2027 and security-related updates until February 14, 2028. Contao 5.7 is the next LTS version of Contao and was released in February 2026, ensuring a smooth transition.

Bjarke Ammann

Bjarke takes care of the website and support. If you like reading, you might have come across his Contao Two Month Review or found an answer to your question in the official Contao user manual. He also makes sure that Contao enthusiasts from Switzerland meet regularly to exchange ideas. He loves culinary delights, good music and exercise in the fresh air.

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