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Target customers: all MySQL 8.0 users. Features released: the following features are added or optimized in the new version: * The multi-plan mode is supported in the execution plan manager. * The rds_ap_threshold system variable is added to block the requests that cause the system to scan a large amount of data. These requests are evaluated by the optimizer. * The efficiency of writing dirty pages to disks on the primary node is improved. * A multiple sharding write mechanism for redo logs is supported.