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5. After a successful new MySQL Server installation, complete the configuration steps by choosing the default encryption type for passwords, define the root password, and also enable (or disable) MySQL server at startup. 

6. The default MySQL 8.0 password mechanism is caching_sha2_password  (Strong), and this step allows you to change it to mysql_native_password  (Legacy). 

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Choosing the legacy password mechanism alters the generated launchd file to set -- default_authentication_plugin=mysql_native_password  under ProgramArguments . Choosing strong password encryption does not set --default_authentication_plugin  because the default MySQL Server value is used, which is caching_sha2_password . 

