TYPO3 12.1.3, 11.5.21 and 10.4.34 maintenance releases published

Categories: Development, TYPO3 CMS Created by Oliver Hader
The versions 12.1.3, 11.5.21 and 10.4.34 of the TYPO3 Enterprise Content Management System have just been released.

The following TYPO3 updates have been released:

  • TYPO3 12.1.3
  • TYPO3 11.5.21 LTS
  • TYPO3 10.4.34 LTS

Further upgrade instructions

No database upgrades are required for these maintenance releases.

These releases address regressions, that were introduced with previous versions:
[BUGFIX] Provide signed storage folders for legacy frontend login (v10.4.33)
[TASK] Backward compatibility handling for frontend login signing (v10.4.33, v11.5.20)
→ new feature flag security.frontend.enforceLoginSigning was introduced
[BUGFIX] Fix absolute backend URL generation in frontend context (v10.4.33, v11.5.20)
[BUGFIX] Catch any transfer exception in HTTP host header check (all versions)


TYPO3 can be installed in various ways. For example the traditional way by using the source package at get.typo3.org or the modern way by setting up a project using composer, to name just two. Further details can be found in the according release notes: