Changes in Galera 4.11 (2022-02-14) Codership is pleased to announce the release of Galera Replication library 4.11, implementing wsrep API version 26. The library is available as targeted packages and package repositories for a number of Linux distributions, including Ubuntu, Debian, CentOS and RHEL. Obtaining packages using a package repository removes the need to download individual files and facilitates the deployment and upgrade of Galera nodes. This and future releases will be available from https://www.galeracluster.com. The latest version of Galera for FreeBSD will be available in the FreeBSD Ports Collection. Notable changes and fixes in Galera since latest release 4.10: - Incremental State Transfer (IST) progress reporting via the event service interface has been implemented, and the GCache can report ring buffer recovery progress via the event service interface. - Library side allowlist functionality corresponding to MDEV-27246 was added. - Ring buffer has been enhanced to avoid segfaults if an invalid buffer leaks past the initial recovery scan. dump_map() method implemented for ring buffer to get more detailed debugging. - Join messages are always sent when not in JOINER state; this relaxed condition is required for the correct handling of the desync counter especially in the DONOR state. This fixes MDEV-27459. - To avoid printing garbage when logging certification conflicts, we stopped printing TrxHandleSlave state history, which is also mostly uninteresting since the state graph is linear. Fixes codership/galera#605 and codership/galera#606 - For applications that do not track the provider side transaction lifetime accurately, we have a defensive mechanism to not attempt releasing the transaction for writeset handle with null opaque. - Library has had changes to allow it to be compiled as a CMake subproject. - Intermediate libraries are added as STATIC to allow cmake -DBUILD_SHARED_LIBS:BOOL=ON to work correctly, fixing codership/galera#611. End of life notices: - We have stopped building CentOS 8 packages, and we cannot guarantee that packages built for Red Hat Enterprise Linux 8 will continue working for CentOS Stream. The users still running above discontinued platforms are advised to use the binary tarball package. Known Issues: - In order to install Galera package on RHEL 8, MySQL and MariaDB modules need to be disabled first with `dnf -y module disable mysql mariadb`.