We've just released TYPO3 versions 10.4.19 LTS and 9.5.29 LTS.
All versions are security releases and contain important security fixes - read the corresponding security advisory here:
https://typo3.org/security/advisory/typo3-core-sa-2021-013
For details about the releases, please visit the following website:
https://typo3.org/article/typo3-1132-10419-9529-8742-7653-security-releases-published