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MySQL Connector/J 8.0.21 has been released

Dear MySQL users,

MySQL Connector/J 8.0.21 is the latest General Availability release of
the MySQL Connector/J 8.0 series.  It is suitable for use with MySQL
Server versions 8.0, 5.7, and 5.6.  It supports the Java Database
Connectivity (JDBC) 4.2 API, and implements the X DevAPI.

In the documentation for MySQL 8.0.21, we have started
changing the term “master” to “source”, the term “slave” to
“replica”, the term “whitelist” to “allowlist”, and the term
“blacklist” to “blocklist”. There are currently no changes to
the product’s syntax, so these terms are still present in the
documentation where the current code requires their use. See
the blog post MySQL Terminology Updates
for more information.

This release includes the following new features and changes, also
described in more detail on

As always, we recommend that you check the “CHANGES” file in the
download archive to be aware of changes in behavior that might affect
your application.

To download MySQL Connector/J 8.0.21 GA, see the “General Availability
(GA) Releases” tab at


Changes in MySQL Connector/J 8.0.21 (2020-07-13, General Availability)

* Functionality Added or Changed

* Bugs Fixed Functionality Added or Changed

Functionality Added or Changed

* X DevAPI: The JSON Schema Validation Functions (
on MySQL servers are now supported by
Connector/J; see Schema Validation for details.

* The required versions of the 3rd-party libraries needed
for running or compiling Connector/J have been changed;
new requirements for additional libraries have also been
added. See Installing Connector/J from a Binary
and Installing from Source
( for details.

Bugs Fixed

* When trying to set a parameter for a PreparedStatement
using the method
PreparedStatement.setObject(parameterIndex, “false”,
Types.BOOLEAN), the value was set to true instead of
false. (Bug #30911870, Bug #98237)

On Behalf of MySQL Release Engineering Team,
Surabhi Bhat