Download MariaDB 10.2.21

MariaDB originated as a fork of MySQL, after it was acquired by Oracle in 2009-2010. For an overview of the differences between MariaDB and MySQL you can visit: this one and this one pages right. MariaDB is a powerful open source database server, which is especially popular as a website and forum database. The developers have released version 10.2.21. The first stable from the 10.2.x branch dates from May 2017 and has been supported for five years. The abbreviated announcement of this release is as follows:

MariaDB 10.2.21 Release Notes

MariaDB 10.2 is the previous stable series of MariaDB. It is an evolution of MariaDB 10.1 with several entirely new features not found anywhere else and with backported and reimplemented features from MySQL 5.6 and 5.7. MariaDB 10.2.21 will be a Stable (GA) release. Thanks, and enjoy MariaDB!

Notable Changes

• MDEV-17589 – Stack buffer overflow with indexed varchar (utf8) field
• MDEV-16987 – ALTER DATABASE possible in read-only mode (forbid ALTER DATABASE in read_only)
• MDEV-17720 – slave_ddl_exec_mode=IDEMPOTENT does not handle DROP DATABASE
• MDEV-6453 – Assertion `inited==NONE || (inited==RND && scan)’ failed in handler::ha_rnd_init(bool) with InnoDB, joins, AND/OR conditions
• MDEV-18105 – Mariabackup fails to copy encrypted InnoDB system tablespace if LSN>4G
• MDEV-18041 – Database corruption after renaming a prefix-indexed column
• MDEV-17470 – Orphan temporary files after interrupted ALTER cause InnoDB: Operating system error number 17 and eventual fatal error 71

changelog
For a complete list of changes made in MariaDB 10.2.21 with links to detailed information on each push, see the changelog.