The Ultimate Guide to High Availability with MariaDB
This is a read-only copy of the MariaDB Knowledgebase generated on 2024-11-21. For the latest, interactive version please visit https://mariadb.com/kb/.

MariaDB 10.2.27 Release Notes

The most recent release of MariaDB 10.2 is:
MariaDB 10.2.44 Stable (GA) Download Now

Download Release Notes Changelog Overview of 10.2

Release date: 11 Sep 2019

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.

MariaDB 10.2.27 is a Stable (GA) release.

For an overview of MariaDB 10.2 see the What is MariaDB 10.2? page.

Thanks, and enjoy MariaDB!

Notable Changes

  • Connect updated to Connect 1.06.0010
  • 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

Upgrading from 10.2 versions earlier than 10.2.17 is highly recommended
for all Galera users due to bug MDEV-12837 which caused serious stability
issues with earlier versions. See the bug issue page for more information.

When upgrading from MariaDB 10.2.16 or earlier to MariaDB 10.2.17 or higher,
running mysql_upgrade is required due to changes introduced in MDEV-14637.

Changelog

For a complete list of changes made in MariaDB 10.2.27 with links to detailed information on each push, see the changelog.

Contributors

For a full list of contributors to MariaDB 10.2.27, see the MariaDB Foundation release announcement.

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