Software update: MariaDB 10.4.11 / 10.3.21 / 10.2.30

MariaDB originated as a fork of MySQL, after it was taken over by Oracle in 2009-2010. For an overview of the differences between MariaDB and MySQL you can go to this one and this one pages rightly so. MariaDB is a powerful open source database server, which is especially popular as a website and forum database. The developers have released versions 10.4.11, 10.3.21 and 10.2.30. The first stable from the 10.4.x branch is from June 2019, the first stable from the 10.3.x branch is from May 2018 and the first stable from the 10.2.x branch is from May 2017. All three have for five years of support. The concise announcements of these releases look like this:

MariaDB 10.4.11 Release Notes

MariaDB 10.4 is the current stable series of MariaDB. It is an evolution of MariaDB 10.3 with several entirely new features not found anywhere else and with backported and reimplemented features from MySQL.

Notable Changes

• General
  • MDEV-13492: SEC_E_INVALID_TOKEN when server sends large message during SSL handshake
• Mariabackup
  • MDEV-18310: Aria engine: Undo phase failed from incremental backup
• InnoDB
  • MDEV-20949: Stop issuing ‘row size’ error on DML
  • MDEV-20832: Don’t print “row size too large” warnings in error log if innodb_strict_mode = OFF and log_warnings <= 2
  • MDEV-21024: Remove redundant writes to the redo log
  • MDEV-21069: Crash on DROP TABLE if the data file is corrupted
  • some cleanup of AIO code, to better report errors
  • MDEV-20611: MRR scan over partitioned InnoDB table produces “Out of memory” error
  • MDEV-21088: Table cannot be loaded after instant ADD / DROP COLUMN
  • MDEV-21045: heap-use-after-poison in ADD PRIMARY KEY after instant ADD COLUMN
  • MDEV-21172: Memory leak after failed ADD PRIMARY KEY
  • MDEV-21158: trx_undo_seg_free () is never redo-logged
  • MDEV-20190: Instant operation fails when add column and collation change on non-indexed column
• Optimizer
  • MDEV-21044: Wrong result when using a smaller size for sort buffer
  • MDEV-20611: MRR scan over partitioned InnoDB table produces “Out of memory” error
  • MDEV-20407: mysqld got signal 11; rowid_filter
• Replication
  • MDEV-19376: Repl_semi_sync_master :: commit_trx assertion failure
  • MDEV-20707: Missing memory barrier in parallel replication error handler in wait_for_prior_commit ()
• Versioning
  • MDEV-18929: 2nd execution of SP does not detect ER_VERS_NOT_VERSIONED
  • MDEV-21011: Table corruption reported for versioned partitioned table after DELETE
• Misc
  • Packages for Fedora 31 have been added in this release
  • As per the MariaDB Deprecation Policy, this will be the last release of MariaDB 10.4 for Fedora 29

MariaDB 10.3.21 Release Notes

MariaDB 10.3 is the previous stable series of MariaDB, and an evolution of MariaDB 10.2 with several entirely new features not found anywhere else and with backported and reimplemented features from MySQL.

Notable Changes

• General
  • MDEV-13492: SEC_E_INVALID_TOKEN when server sends large message during SSL handshake
• Mariabackup
  • MDEV-18310: Aria engine: Undo phase failed from incremental backup
• InnoDB
  • MDEV-20949: Stop issuing ‘row size’ error on DML
  • MDEV-20832: Don’t print “row size too large” warnings in error log if innodb_strict_mode = OFF and log_warnings $ # 060; = 2
  • MDEV-21024: Remove redundant writes to the redo log
  • MDEV-21069: Crash on DROP TABLE if the data file is corrupted
  • some cleanup of AIO code, to better report errors
  • MDEV-20611: MRR scan over partitioned InnoDB table produces “Out of memory” error
  • MDEV-21088: Table cannot be loaded after instant ADD / DROP COLUMN
  • MDEV-21045: heap-use-after-poison in ADD PRIMARY KEY after instant ADD COLUMN
  • MDEV-21172: Memory leak after failed ADD PRIMARY KEY
  • MDEV-21158: trx_undo_seg_free () is never redo-logged
• Optimizer
  • MDEV-21044: Wrong result when using a smaller size for sort buffer
  • MDEV-20611: MRR scan over partitioned InnoDB table produces “Out of memory” error
• Replication
  • MDEV-19376: Repl_semi_sync_master :: commit_trx assertion failure
• Versioning
  • MDEV-18929: 2nd execution of SP does not detect ER_VERS_NOT_VERSIONED
  • MDEV-21011: Table corruption reported for versioned partitioned table after DELETE
• Misc
  • Packages for Fedora 31 have been added in this release
  • As per the MariaDB Deprecation Policy, this will be the last release of MariaDB 10.3 for Fedora 29

MariaDB 10.2.30 Release Notes

MariaDB 10.2 is a 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.

Notable Changes

• General
  • MDEV-13492: SEC_E_INVALID_TOKEN when server sends large message during SSL handshake
• Mariabackup
  • MDEV-18310: Aria engine: Undo phase failed from incremental backup
• InnoDB
  • MDEV-20949: Stop issuing ‘row size’ error on DML
  • MDEV-20832: Don’t print “row size too large” warnings in error log if innodb_strict_mode = OFF and log_warnings $ # 060; = 2
  • MDEV-21024: Remove redundant writes to the redo log
  • MDEV-21069: Crash on DROP TABLE if the data file is corrupted
  • some cleanup of AIO code, to better report errors
• Optimizer
  • MDEV-21044: Wrong result when using a smaller size for sort buffer
• Replication
  • MDEV-19376: Repl_semi_sync_master :: commit_trx assertion failure