The most recent release of MariaDB Connector/C++ is: 1.1.9
{% endhint %} Download Release Notes Changelog About MariaDB Connector/C++ **Release date:** 2022-10-11 This is a [***Stable (GA)***](/docs/release-notes/community-server/about/release-criteria.md) release of MariaDB Connector/C++. **For a description of this library see the**[**MariaDB Connector/C++**](/docs/connectors/mariadb-connector-cpp.md) **page.** [MariaDB Connector/C++](/docs/connectors/mariadb-connector-cpp.md) is the interface between C++ applications and MariaDB Server. MariaDB Connector/C++ enables development of C++ applications using a JDBC-based API, which is also used by MariaDB Connector/J. MariaDB Connector/C++ implements the MySQL protocol using the MariaDB Connector/C API. This release depends on MariaDB Connector/C 3.3.2. ## Notable Changes * Added support of two optimized modes of `executeBatch/executeLargeBatch` PreparedStatement methods execution: ([CONCPP-106](https://jira.mariadb.org/browse/CONCPP-106)) * `rewriteBatchedStatements` connection option * `useBulkStmts` connection option ### `rewriteBatchedStatements` * When using the `rewriteBatchedStatements` connection option, for `INSERT` queries the connector will construct a single query using batch parameter sets. For example: ```sql INSERT INTO ab (i) VALUES (?) WITH first batch values = 1, second = 2 ``` will be rewritten as: ```sql INSERT INTO ab (i) VALUES (1), (2) ``` If the query cannot be rewritten in `multi-values`, the `rewriteBatchedStatements` connection option will use `multi-queries`. For example: ```sql INSERT INTO ab(col1) VALUES (?) ON DUPLICATE KEY UPDATE col2=? WITH VALUES [1,2] AND [2,3] ``` will be rewritten as: ```sql INSERT INTO ab(col1) VALUES (1) ON DUPLICATE KEY UPDATE col2=2;INSERT INTO TABLE(col1) VALUES (3) ON DUPLICATE KEY UPDATE col2=4 ``` * If the `rewriteBatchedStatements` connection option is selected, the useServerPrepStmts option is set to false. * If both `rewriteBatchedStatements` and `useBulkStmts` options are selected, `rewriteBatchedStatements` takes precedence. ### `useBulkStmts` * The `useBulkStmts` connection option uses the MariaDB bulk execution feature, so it requires MariaDB Server 10.2.7 or later. `useBulkStmts` will be used even if `useServerPrepStmts` is not set, in other words, if the default statement prepare method is client-side prepare. * If both `useBulkStmts` and `rewriteBatchedStatements` options are selected, `rewriteBatchedStatements` takes precedence. ## Issues Fixed * Attempting connections from multiple threads causes the connector to crash. ([CONCPP-105](https://jira.mariadb.org/browse/CONCPP-105)) * PreparedStatement `setDouble` only processes the first 6 significant digits and zeros any additional digits. ([CONCPP-96](https://jira.mariadb.org/browse/CONCPP-96)) * Result-set streaming is not supported in this release series, but setting `setFetchSize` does not throw an exception and can cause the application to crash. * Starting with this release, setting `setFetchSize` will throw `SQLFeatureNotImplementedException` at the attempt to set `fetch size >0` ([CONCPP-107](https://jira.mariadb.org/browse/CONCPP-107)) ## Installation [Install MariaDB Connector/C++](/docs/connectors/mariadb-connector-cpp/install-mariadb-connector-cpp.md) *This page is: Copyright © 2026 MariaDB. All rights reserved.* {% @marketo/form formid="4316" formId="4316" %}