What's new in at-spi2-core 2.39.1: * Don't use gdbus-broker if not running under systemd (#25). * Unref bus at the end of cleanup. * Fix XML interfaces (#26). * Use unix sockets instead of abstract sockets (#28). * Added a device API to replace the old API for capturing key grabs. This is needed for toolkits that do not report keystrokes to atk, such as gtk 4.