July 2025 monthly summary for xenserver/host-installer focusing on installer simplification, feature flag-based rollout, and robustness improvements.

June 2025: Delivered a new post-base-packages provisioning stage in Host Installation, enabling scripts to run after base packages install to add testing packages. Updated docs for the new 'packages-installed' stage. No major bugs fixed this month. This work improves testing flexibility, reduces image rebuilds for testing, and enhances post-install configurability.

May 2025: Implemented repository URL blocklist enforcement for Xen API (xapi-project/xen-api). On startup, blocked repositories are removed; new repositories cannot be created if their URL is blocked. This hardens source integrity, improves stability, and reduces misconfig risk. Related commit CP-54275: ef089d4ef978716d453a88a2fd7eb376246b3940.

April 2025 monthly summary for xenserver/host-installer focusing on upgrade-safety enhancements related to Corosync. Implemented automated detection of Corosync 2 usage, added a migration prompt to guide operators to Corosync v3 before upgrading, and enforced a hard upgrade guard to prevent upgrades when Corosync 2 is in use. These changes reduce upgrade failures and downtime, and improve operator guidance and compliance.

March 2025 monthly summary for xapi-project/xen-api: focused on reliability improvements in the metrics collection path on XS9. Delivered a targeted bug fix that increases the maximum allowed size of xcp-rrdd-plugins to prevent omissions in metrics data, ensuring complete data capture for squeezed, iostat, and mem-stats. This change enhances monitoring fidelity and bug-tool accuracy with minimal risk and targeted scope.

February 2025 monthly work summary focusing on feature delivery, bug fixes, and impact across XenServer/XenAPI and host-installer. Highlights include migration of DNF plugins for XenServer 9 and cleanup of memtest86+ bootloader arguments to improve boot reliability and packaging continuity.

November 2024 monthly summary for xenserver/host-installer: Delivered UEFI-Only Installer Support by removing legacy BIOS boot paths and refactoring installer workflows to operate exclusively in UEFI mode. Refactored partitioning and bootloader installation, and added checks to prevent installations or upgrades on BIOS-based systems. Reduced legacy code surface, lowering maintenance risk and potential security issues, while aligning with modern hardware requirements. Key commits CP-52458: Remove BIOS related code from host-installer; CP-52458: Remove unused BIOS boot code (70a19fb82ea718874293365a0cbfd8c9bd7cad74, 23f8bad7abb904d876878ca3e40359df77181ccf).