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MySQL Connector/C++ Release Notes  /  Changes in MySQL Connector/C++ 8.0  /  Changes in MySQL Connector/C++ 8.0.31 (2022-10-11, General Availability)

Changes in MySQL Connector/C++ 8.0.31 (2022-10-11, General Availability)

Compilation Notes

  • Connector/C++ now compiles cleanly using Clang for Linux and Solaris.

Configuration Notes

  • Several CMake options have been added or updated to enable using external sources (or builds) of third-party components, like compression libraries and the Protobuf compiler, on which Connector/C++ depends. These options permit substituting external source locations at configuration time if required.

    Supported options are:

    Currently, bundled third-party libraries used by connector are linked statically to it. Externally sourced libraries are linked dynamically. Long-standing issues, such as applications that link to the static connector library (libmysqlcppconn8-static.a) not being able to also link to a Protobuf library at the same time, now are resolved by building from sources a variant that links Protobuf dynamically.

    For more information, see Specifying External Dependencies. (Bug #32117299)

Security Notes

Functionality Added or Changed

  • If building the legacy JDBC connector from source, using an additional git command to perform submodule initialization is no longer necessary.

Bugs Fixed

  • X DevAPI: If an application program called mysqlx_session_close after disconnecting from the Internet, an exception from Connector/C++ could cause the application to halt unexpectedly. (Bug #107692, Bug #34338950)

  • On Windows, compiler difficulties were encountered because unistd.h was used to call getcwd rather than using various Windows alternatives. Our thanks to Luis Pinto for the patch. (Bug #108355, Bug #34553226)

  • The libcrypto library, which libssl attempted to link to, was installed in an unexpected directory by the Connector/C++ binary distribution for macOS. This fix ensures that both bundled libraries are installed in the same directory. (Bug #107947, Bug #34417381)