MariaDB

MariaDB is a community-developed fork of the MySQL relational database management system intended to remain free under the GNU GPL. Development is led by some of the original developers of MySQL, who forked it due to concerns over its acquisition by Oracle Corporation.<ref>Template:Cite web</ref>

MariaDB intends to maintain high compatibility with MySQL, ensuring a drop-in replacement capability with library binary parity and exact matching with MySQL APIs and commands.<ref>Template:Cite web</ref> It includes the XtraDB storage engine for replacing InnoDB,<ref>Template:Cite web</ref> as well as a new storage engine, Aria, that intends to be both a transactional and non-transactional engine perhaps even included in future versions of MySQL.<ref>Template:Cite web</ref>