Yanquan Lv created FLINK-39295:
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             Summary: [DOC] Add documentation for MySQL 8.4+ support in MySQL 
CDC connector
                 Key: FLINK-39295
                 URL: https://issues.apache.org/jira/browse/FLINK-39295
             Project: Flink
          Issue Type: Improvement
          Components: Flink CDC
    Affects Versions: cdc-3.6.0
            Reporter: Yanquan Lv


The PR [FLINK-36520] MySQL CDC Supports connecting to MySQL server 8.4+ (#3666) 
added support for MySQL 8.4+ in the MySQL CDC connector.

What needs to be documented:

1. Update the MySQL CDC connector documentation to indicate that MySQL 8.4+ is 
now supported.

2. Add MySQL 8.4 to the supported MySQL versions list.

3. Note that MySQL 8.4 introduced some breaking changes:
   - SHOW MASTER STATUS is deprecated, replaced by SHOW BINARY LOG STATUS
   - Error message terminology changed from slave/master to replica/source

The connector now automatically probes and uses the correct SQL statements 
based on the MySQL server version.

Supported MySQL versions:
- MySQL 5.7
- MySQL 8.0
- MySQL 8.4+

Related PR:
https://github.com/apache/flink-cdc/pull/3666



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