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Replication

•    As of MySQL 5.6, the relay-log. info file contains a linę count and a replication delay value,

so the file format differs from that in older versions. See Section 16.2.2.2, “Slave Status Logs”. If

you downgrade a slave server to a version older than MySQL 5.6, the older server will not read the

file correctly. To address this, modify the file in a text editor to delete the initial linę containing the number of lines.

•    Beginning with MySQL 5.6.6, the MySQL Server employs Version 2 binary log events when writing

the binary log. Binary logs written using Version 2 log events cannot by read by earlier versions of

MySQL Sen/er. To generate a binary log that is written using Version 1 log events readable by older

servers, start the MySQL 5.6.6 or later server using --log-bin-use-

vl-row-events=l [2040],

which forces the server to employ Version 1 events when writing the binary log.