The Ultimate Guide to High Availability with MariaDB

MariaDB 10.3.21 Release Notes

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Note: This page describes features in the source repository for MariaDB 10.3. There are currently no official packages or binaries available for download which contain the features. If you want to try out any of the new features described here you will need to get and compile the code yourself.

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.

MariaDB 10.3.21 is a Stable (GA) release.

For an overview of MariaDB Server 10.3 see the What is MariaDB 10.3? page.

Thanks, and enjoy MariaDB!

Notable Changes

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

When upgrading from MariaDB 10.3.8 or earlier to MariaDB 10.3.9 or higher,
running mysql_upgrade is required due to changes introduced in MDEV-14637.

Changelog

For a complete list of changes made in MariaDB 10.3.21, with links to detailed information on each push, see the changelog.

Contributors

For a full list of contributors to MariaDB 10.3.21, see the MariaDB Foundation release announcement.

Be notified of new MariaDB Server releases automatically by subscribing to the MariaDB Foundation community announce 'at' lists.mariadb.org announcement list (this is a low traffic, announce-only list). MariaDB plc customers will be notified for all new releases, security issues and critical bug fixes for all MariaDB plc products thanks to the Notification Services.

MariaDB may already be included in your favorite OS distribution. More information can be found on the Distributions which Include MariaDB page.

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