The Qlustar releases 12.0.0.5-b542f1391 and 11.0.1.9-b543f1392 are ready including a number of security/bug fixes and improvements. In particular, they include a fix for the Sequoia local root exploit bug https://www.qualys.com/2021/07/20/cve-2021-33909/sequoia-local-privilege-esc... Please check the following web pages for details about all security fixes and special update instructions: https://qlustar.com/qsa/2021/0724211 https://qlustar.com/qsa/2021/0724212 The following non-security related enhancements/bug fixes are included: For 12.0 only: - ntpd is replaced by systemd-timesyncd as the daemon to sync system time between head-node(s) and netboot nodes.