Software update: MariaDB 10.2.21




MariaDB originated as a fork of MySQL, after being taken over by Oracle in 2009-2010. For an overview of the differences between MariaDB and MySQL you can go to this and these pages. 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 received support for five years. The concise announcement of this issue 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 new features and backed up 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
For a complete list of changes made in MariaDB 10.2.21 with links to detailed information on each push, see the changelog .
Version number 10.2.21
Release status Final
Operating systems Windows 7, Linux, BSD, macOS, Solaris, UNIX, Windows Server 2012, Windows 8, Windows 10, Windows Server 2016
License type Conditions (GNU / BSD / etc.)


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