In a release note for MariaDB 11.5.1 (a release candidate).
The TIMESTAMP range of values was extended. The maximal allowed value for timestamps was ‘2038-01-19 03:14:07 UTC’, and is now ‘2106-02-07 06:28:15 UTC’. This does not change the storage format, and new tables can be read by old MariaDB servers as long as timestamp values are within the old timestamp range. At the moment this is only supported on 64-bit platforms (MDEV-32188).
https://mariadb.com/kb/en/mariadb-11-5-1-release-notes/
This is good news. Maybe not for me particularly, I would be 86. But for lots of people.