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Amazon RDS for MariaDB supports Long-Term Support version 12.3 in Amazon RDS Database Preview Environment

Published
June 15, 2026
https://aws.amazon.com/about-aws/whats-new/2026/05/amazon-rds-maria-db-innovation-release-12-3-rds-database-preview-environment/

Amazon RDS for MariaDB

Now supports MariaDB 12.3 in the Amazon RDS Database Preview Environment, allowing you to evaluate the latest Long-Term Support Release on Amazon RDS for MariaDB. This preview environment provides a sandbox where you can test applications and explore new MariaDB 12.3 capabilities before they become generally available.

New Features

  • Oracle TO_DATE() function compatibility
  • SQL Standard IS JSON predicate for native JSON validation
  • Basic XML data type
  • Support for cursors on prepared statements
  • UPDATE/DELETE operations to read from Common Table Expressions
  • Query optimizer improvements for reorderable LEFT JOIN statements and ordered scans over RANGE partitions

What to do

  • Test applications and explore new MariaDB 12.3 capabilities in the preview environment
  • Refer to the MariaDB 12.3 release notes for more details

Amazon RDS Database Preview Environment database instances are retained for a maximum period of 60 days and are automatically deleted after the retention period. For pricing information, see Amazon RDS for MariaDB pricing. For further information, see Working with the Database Preview Environment.




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