MariaDB 10.3.18 Release Notes

The most recent release of MariaDB 10.3 is:
MariaDB 10.3.39 Stable (GA) Download Now

Download Release Notes Changelog Overview of 10.3

Release date: 11 Sep 2019

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 10.3.18 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

  • Connect updated to Connect 1.06.0010
  • MDEV-20066: This bug could cause a table to become corrupt if a column was added instantly
  • MDEV-15326: A race condition in InnoDB transaction commit that affects record locking was fixed
  • MDEV-17187: Table doesn't exist in engine after ALTER of FOREIGN KEY
  • MDEV-20301: InnoDB's MVCC has O(N^2) behaviors
  • MDEV-18128: Simplify .ibd file creation
  • MDEV-20060: Failing assertion: srv_log_file_size <= 512ULL << 30 while preparing backup
  • MDEV-20247: Replication hangs with "preparing" and never starts
  • MDEV-17614: Remove unnecessary locking for INSERT...ON DUPLICATE KEY UPDATE
  • MDEV-20311: row_ins_step accesses uninitialized memory
  • MDEV-19947: Repositories for RHEL 8 ppc64le added

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.


For a complete list of changes made in MariaDB 10.3.18, with links to detailed information on each push, see the changelog.


For a full list of contributors to MariaDB 10.3.18, see the MariaDB Foundation release announcement.

Be notified of new MariaDB Server releases automatically by subscribing to the MariaDB Foundation community announce 'at' 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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