(mysql.info.gz) Replication Compatibility

(mysql.info.gz) Replication Upgrade

 
 6.5 Replication Compatibility Between MySQL Versions
 ====================================================
 
 The original binary log format was developed in MySQL 3.23. It changed
 in MySQL 4.0, and again in MySQL 5.0. This has consequences when you
 upgrade servers in a replication setup, as described in 
 Replication Upgrade.
 
 As far as replication is concerned, any MySQL 4.1.x version and any
 4.0.x version are identical, because they all use the same binary log
 format.  Thus, any servers from these versions are compatible, and
 replication between them should work seamlessly.  The exceptions to
 this compatibility is that versions from MySQL 4.0.0 to 4.0.2 were very
 early development versions that should not be used anymore.  (These
 were the alpha versions in the 4.0 release series.  Compatibility for
 them is still documented in the manual included with their
 distributions.)
 
 The following table indicates master/slave replication compatibility
 between different versions of MySQL.
 
                        *Master*       *Master*       *Master*
                        *3.23.33 and   *4.0.3 and up  *5.0.0*
                        up*            or any 4.1.x*  
 *Slave* *3.23.33 and   yes            no             no
         up*                                          
 *Slave* *4.0.3 and     yes            yes            no
         up*                                          
 *Slave* *5.0.0*        yes            yes            yes
 
 As a general rule, we recommended using recent MySQL versions, because
 replication capabilities are continually being improved.  We also
 recommend using the same version for both the master and the slave.
 
 The preceding information pertains the replication compatibility at the
 protocol level. There can also be SQL-level compatibility constraints,
 as discussed in  Replication Features.

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