- Added Amazon RDS support for MariaDB 12.3 (12.3.2) major version.
- Introduces Oracle TO_DATE compatibility, IS JSON predicate, and optimizer enhancements for LEFT JOIN reordering and RANGE partition scans.
- Upgrades available via Blue/Green deployments, in‑place upgrade, snapshot restore, or migration with AWS DMS.
Amazon RDS for MariaDB now supports MariaDB 12.3
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