# Percona XtraDB Cluster 5.7.43-31.65 (2023-08-31) Percona XtraDB Cluster (PXC) supports critical business applications in your public, private, or hybrid cloud environment. Our free, open source, enterprise-grade solution includes the high availability and the security features your business requires to meet your customer expectations and business goals. ## Release highlights The [PXC-4218](https://jira.percona.com/browse/PXC-4218) bug fix requires the upgrade procedure in the [Upgrading Percona XtraDB Cluster](https://www.percona.com/doc/percona-xtradb-cluster/5.7/howtos/upgrade_guide.html) guide. Be sure to open another session and run `mysql_upgrade` as part of the process. Improvements and bug fixes provided by Oracle for MySQL 5.7.43 and included in Percona XtraDB Cluster are the following: * OpenSSL 1.1.1 library has been upgraded to OpenSSL 3.0.9. Find the full list of bug fixes and changes in the [MySQL 5.7.43 Release Notes](https://dev.mysql.com/doc/relnotes/mysql/5.7/en/news-5-7-43.html). ## Bug fixes * [PXC-4218](https://jira.percona.com/browse/PXC-4218): The output of SHOW VARIABLES LIKE 'wsrep_provider_options' was truncated. This bug fix requires the upgrade procedure in the [Upgrading Percona XtraDB Cluster](https://www.percona.com/doc/percona-xtradb-cluster/5.7/howtos/upgrade_guide.html) guide. Be sure to open another session and run `mysql_upgrade` as part of the process. * [PXC-4241](https://jira.percona.com/browse/PXC-4241): `Percona-XtraDB-Cluster-server-57` RPM package on EL9 did not obsolete `mariadb-connector-c-config.noarch`. ## Useful links [Install Percona XtraDB Cluster](https://www.percona.com/doc/percona-xtradb-cluster/5.7/install/index.html) [Percona Product downloads](https://www.percona.com/downloads) The [Percona XtraBackup GitHub location](https://github.com/percona/percona-xtradb-cluster) [Contribute to the documentation](https://github.com/percona/pxc-docs/blob/8.0/contributing.md) For [training](https://www.percona.com/training), contact [Percona Training - Start learning now](https://learn.percona.com/contact-me)