We are thrilled to announce that MariaDB Community Server 12.3 has reached Generally Available (GA) status. As our latest Long Term Maintenance (LTS) release, version 12.3 marks the culmination of the 12.x rolling release cycle (12.0–12.2), bringing together a year of rapid innovation into a rock-solid, production-ready package maintained for the next three years.
From scaling modern AI workloads to accelerating core database performance, MariaDB Server 12.3 delivers a versatile, open-source foundation to power your community deployments and development pipelines.
In today’s landscape, a database must be an intelligent, highly available engine that reduces operational friction. MariaDB Server 12.3 delivers this strategic value across four key pillars:
(+) join syntax and TO_DATE) and MySQL (caching_sha2_password) reduces the technical risk and cost of migrating legacy applications to an open-source platform.MariaDB Server 12.3 includes all features introduced during the 12.x rolling series. Here is a breakdown of what makes this version the new standard for stability and innovation.
Building on the foundation laid in the 11.x series, MariaDB 12.3 introduces optimized distance calculations for modern embeddings (such as those from OpenAI and Gemini). New extrapolation techniques make vector search significantly faster, allowing MariaDB to serve as both your relational and vector database in a single, efficient footprint.
MariaDB 12.3 delivers a significant improvement in write performance through a fundamental re-engineering of the binary log. By migrating core binlog components directly into the InnoDB engine, this architectural shift removes redundant synchronization points to accelerate replication and write-heavy workloads — including global e-commerce platforms and real-time IoT networks. This feature is fully ready for production and can be enabled via a simple configuration change.
MariaDB 12.3 gives DBAs unprecedented control over query execution while expanding the engine’s reach:
JOIN_FIXED_ORDER and MAX_EXECUTION_TIME allow manual guidance of the optimizer for precise query performance tuning.SET PATH, and deep Oracle compatibility features (associative arrays, SYS_REFCURSOR) make MariaDB 12.3 a fit for any tech stack and simplify legacy migrations.MariaDB 12.3 increases system transparency while ensuring security protocols don’t obstruct workflows:
caching_sha2_password, MariaDB 12.3 delivers an improved migration workflow that ensures compatibility with the latest MySQL-based clients and drivers.MariaDB Community Server 12.3 is designed for users who prioritize a stable production environment:
The innovations in 12.3 aren’t exclusive to the community. MariaDB Enterprise Server 12.3 Beta is coming soon. This release will bring the performance and efficiency of the 12.3 LTS series to the Enterprise Platform, complete with the exclusive stability and reliability enhancements required for mission-critical, commercial deployments — including advanced clustering, hardened security, and 24/7 world-class support.
The transition from 11.4 LTS or 12.2 Rolling is designed to be seamless:
Upgrade to MariaDB Community Server 12.3 today to start using the latest GA features.
MariaDB Community Server 12.3 is the latest Long Term Maintenance (LTS) release of MariaDB’s open-source relational database. It consolidates all innovations from the 12.x rolling release series (12.0–12.2) into a single, production-ready version that will be maintained with bug fixes and security updates through June 2029. The release is significant because it combines AI workload readiness, a major write-performance improvement, and broader SQL compatibility — making it suitable for both new projects and legacy migration efforts.
MariaDB 12.3 delivers a 4x performance boost for write-heavy workloads through a fundamental re-engineering of the binary log. The core improvement is architectural: binlog components have been migrated directly into the InnoDB engine, removing redundant synchronization points that previously created bottlenecks. This benefits any workload with high write throughput — such as e-commerce transaction processing or real-time IoT data ingestion — and can be enabled in production with a simple configuration change.
Yes. MariaDB 12.3 introduces optimized distance calculations specifically designed for high-dimensional vectors and matryoshka embeddings — the kind produced by modern AI models such as those from OpenAI and Gemini. New extrapolation techniques make vector search significantly faster, meaning MariaDB can serve as both the relational database and the vector store within a single deployment. This is particularly relevant for RAG (Retrieval-Augmented Generation) applications that need to retrieve semantically similar content at low latency.
MariaDB 12.3 includes expanded compatibility for both Oracle and MySQL. On the Oracle side, it adds support for (+) join syntax, TO_DATE, associative arrays, and SYS_REFCURSOR. For MySQL, it adds native support for caching_sha2_password, which is the default authentication plugin in modern MySQL deployments. Together, these features reduce the technical friction of migrating applications from either Oracle or MySQL to MariaDB’s open-source platform.
MariaDB Community Server 12.3 LTS will receive continuous bug fixes, security updates, and stability improvements until June 2029 — a three-year maintenance window.
A rolling release (such as 12.0, 12.1, or 12.2) delivers new features on a quarterly basis, does not receive patches and is suited for teams that want the latest capabilities as they ship. An LTS (Long Term Maintenance) release, like 12.3, is a consolidated snapshot of a full release cycle that prioritizes stability — receiving only bug fixes, security patches, and critical stability improvements for its maintenance lifetime.
MariaDB 12.3 introduces new optimizer hints, including JOIN_FIXED_ORDER and MAX_EXECUTION_TIME, which allow database administrators to manually direct the query optimizer for predictable performance outcomes. These additions give DBAs fine-grained control in situations where the optimizer’s automatic choices are suboptimal — useful in complex analytical queries or latency-sensitive production workloads.
MariaDB Enterprise Server 12.3 Beta is coming soon, the GA release will be available as part of the next MariaDB Enterprise Platform release later this year. It will bring the performance and compatibility improvements of the Community 12.3 LTS release to the commercial Enterprise Platform, along with additional stability and reliability enhancements suited for mission-critical deployments. Enterprise customers benefit from advanced clustering, hardened security features, and 24/7 commercial support — capabilities not included in the Community edition. The enterprise version includes five years of standard support, with the option to extend coverage for an additional three years.
Yes. MariaDB Server 12.3 LTS is explicitly designed for production use. The LTS designation means the codebase is stable and won’t change in breaking ways during its support window. It includes a production-ready binary log re-engineering for write performance, expanded observability tools via Performance Schema and Galera audit logging, and seamless upgrade paths from both 11.4 LTS and 12.2 Rolling — making it appropriate for teams starting a new project or consolidating from a previous version.
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