MariaDB 10.1 was released as stable (GA) with version 10.1.8 on 17 Oct 2015.

Among the main new features are Galera as a standard part of the distribution, encryption of tables, tablespaces, and logs, page compression, improvements to replication features, support for Spatial Reference systems for the GIS data and more geo-spatial functions.

For more details, see Changes & Improvements in MariaDB 10.1.