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The MySQL Router is a building block for high availability (HA) solutions. Router simplifies application development by intelligently routing connections to MySQL servers for increased performance and reliability.
Router uses a configuration file to define how routing is performed, and can be configured to enable several applications to use a single router.
MySQL Router 8 fully supports MySQL 5.7 and MySQL 8, and it replaces the MySQL Router 2.x series. If you currently use Router 2.0 or 2.1 then we recommend upgrading your installation to MySQL Router 8.