Month: 2026-01 Key features delivered: - SDL3 X11 backend: Implemented proper WM_STATE handling to detect Withdrawn and Iconic states in tiling window managers (e.g., i3), enabling correct visibility signaling and preventing rendering when not visible. - Commit: 7931321cffa27d4168738ddbe2251966f243afc9 - Commit message reference: X11: Handle WM_STATE transitions to detect Withdrawn/Iconic states (#14770). Major bugs fixed: - Fixed a bug in the SDL3 X11 backend where WM_STATE changes were ignored during PropertyNotify, causing windows in hidden/unmapped states to continue rendering. The fix ensures proper detection of Withdrawn/Iconic transitions to stop unnecessary rendering when windows are not visible. Overall impact and accomplishments: - Performance and power efficiency gains for SDL3 apps running under tiling window managers by eliminating unnecessary rendering when a window is not visible. - Correctness improvement in visibility semantics for X11 windows, reducing resource waste and improving user-perceived responsiveness in tiling environments. Technologies/skills demonstrated: - X11 protocol handling (WM_STATE, PropertyNotify) and its interaction with tiling window managers - Cross-WM compatibility considerations and robustness in visibility logic - Performance-oriented debugging and resource optimization, with traceable commits - Clear, maintainable commit messages tied to concrete issues (#14770)