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https://dev.mysql.com/doc/relnotes/connector-cpp/en/news-8-0-33.html
(Bug #34983380) ZLIB sources bundled in the Connector/C++ source tree are upgraded to ZLIB 1.2.13 to match the server. (Bug #34888141) RapidJSON sources bundled in the Connector/C++ source tree are upgraded to RapidJSON 1.1.0 to match the server.
https://dev.mysql.com/doc/relnotes/connector-cpp/en/news-8-0-5.html
MySQL Connectors and other MySQL client tools and applications now synchronize the first digit of their version number with the (latest) MySQL server version they support. For example, MySQL Connector/C++ 8.0.12 would be designed to support all ...
https://dev.mysql.com/doc/relnotes/connector-j/en/news-8-0-12.html
It is suitable for use with MySQL Server versions 8.0, 5.7, 5.6, and 5.5. (Bug #28027459, WL #11858) X DevAPI: Connector/J now uses synchronous client sockets (java.net.Socket) by default to communicate with MySQL servers for X Protocol connections.
https://dev.mysql.com/doc/relnotes/connector-j/en/news-8-0-29.html
It is suitable for use with MySQL Server versions 8.0 and 5.7. Since release 8.0.29, utf8mb3 has become a recognized (though deprecated) character set on its own for MySQL Server. Therefore, Connector/J has added utf8mb3 to its character set ...
https://dev.mysql.com/doc/relnotes/connector-j/en/news-8-0-32.html
It is suitable for use with MySQL Server versions 8.0 and 5.7. (Bug #108419, Bug #34578010) When using server-side prepared statements, the BIT data type was not properly handled by NativeQueryBindValue.getFieldType() and, as a result, BIT values ...
https://dev.mysql.com/doc/refman/9.7/en/adding-collation.html
The MySQL 9.7 server issues a warning for any use of COLLATE user_defined_collation in an SQL statement; a warning is also issued when the server is started with --collation-server set equal to the name of a user-defined collation. Warning ...
https://dev.mysql.com/doc/refman/9.7/en/alter-table-partition-operations.html
ALGORITHM=1 causes the server to use the same key-hashing functions as MySQL 5.1 when computing the placement of rows in partitions; ALGORITHM=2 means that the server employs the key-hashing functions implemented and used by default for new KEY ...
https://dev.mysql.com/doc/refman/9.7/en/downgrading.html
A replication topology is downgraded by following the rolling downgrade scheme described at Section 19.5.3, “Upgrading or Downgrading a Replication Topology”, which uses one of the supported single-server methods for each individual server ...
https://dev.mysql.com/doc/refman/9.7/en/group-replication-deploying-instances.html
The first step is to deploy at least three instances of MySQL Server, this procedure demonstrates using multiple hosts for the instances, named s1, s2, and s3. It is assumed that MySQL Server is installed on each host (see Chapter 2, Installing ...
https://dev.mysql.com/doc/refman/9.7/en/group-replication-upgrade.html
Note Before MySQL 8.4, a server would not join a group if it was running a lower MySQL Server version than the lowest group member's version. For example, an 8.4.0 server could join a group consisting of S1 (8.4.1) and S2 (8.4.2), and a 9.7.0 server ... This section explains how to upgrade a Group Replication ...