Codership is pleased to announce a new release of Galera Cluster for MySQL consisting of MySQL-wsrep 8.0.19 and Galera 4.5, wsrep API version 26. This is the first generally availabe binary release of Galera 4 series by Codership. Notable new features in Galera 4 series are: - Streaming replication will improve execution of large transactions by splitting transaction replication and applying into small fragments. - Optimized write set certification rules will improve foreign key support by reducing the number of foreign key related false conflicts in certification. - Support for group commit. Notable fixes in Galera replication since last source release (4.4): - Buffer overflow with auto-evict has been fixed. - All GCache ring buffer capacity was not always restored in GCache recovery. This has been now fixed. - Error handling during bad network conditions has been improved to make node to attempt to leave cluster gracefully if there is a possibility for data inconsistency. Notable fixes in Galera replication since latest release candidate (4.5-rc): - Error handling during frequent cluster configuration changes was improved. - A segmentation fault with multicast was fixed. The packages are available from https://releases.galeracluster.com/ for the following operating systems: - CentOS 7 and 8 - Debian 10 - OpenSUSE 15 - SLES 15 SP 1 - Ubuntu 18.04 and 20.04 Known issues with this release: - When installing software on CentOS 8, dnf modules mysql and mariadb must be disabled before installing Galera Cluster software. This can be done by running `dnf module disable mysql mariadb`.