Hi
cf •,
Welcome to Microsoft Q&A forum and thanks for using Azure services.
As I understand, you want to know about Azure MariaDB version upgrade from 10.3 in 2023.
As per the discussion with the internal team, we plan to support v10.3 on MariaDB till September 2025. We do not plan to release any new MariaDB versions. Customers would be able to create new v10.3 MariaDB servers until further notice.
We highly recommend customers to migrate their workloads to MySQL Flexible server as we are bringing all new features to the MySQL Flexible platform and MySQL is closely compatible with MariaDB.
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