As for the regular maintenance releases we have planned the following release schedule:
You can mark the dates in your calendars, but also be aware of possible changes due to possible security issues that might arise. Check back regularly on our "Maintenance Releases" page which will be kept up-to-date.
This is a companion discussion topic for the original entry at https://typo3.org/article/typo3-v10-maintenance-release-schedule?type=0/