We have published security release 5.2.24, 5.3.15 and 5.4.2 on GitHub, see:

- 5.2.24: https://github.com/ILIAS-eLearning/ILIAS/releases/tag/v5.2.24.
- 5.3.15: https://github.com/ILIAS-eLearning/ILIAS/releases/tag/v5.3.15.
- 5.4.2 : https://github.com/ILIAS-eLearning/ILIAS/releases/tag/v5.4.2.

Important: These releases contain very important security fixes and it is highly recommended to update your system.

Please have a look at the release notes for more information about these releases:

- 5.2.24: https://docu.ilias.de/goto_docu_pg_116942_35.html
- 5.3.15: https://docu.ilias.de/goto_docu_pg_116906_35.html
- 5.4.2 : https://docu.ilias.de/goto_docu_pg_116948_35.html